methyl methacrylate

CAS No. 80-62-6

Formula: C5H8O2
Basic Info

Methyl methacrylate (MMA) is an organic compound with the formula CH2=C(CH3)COOCH3. This colourless liquid, the methyl ester of methacrylic acid (MAA) is a monomer produced on a large scale for the production of poly(methyl methacrylate) (PMMA).

Formula
C5H8O2
Molecular Weight
100.116
Exact Mass
100.052
LogP
0.7355
PSA
26.3
Synonyms

2-Propenoicacid, 2-methyl-, methyl ester

Methyl methacrylate

2-Propenoic acid, 2-methyl-, methyl ester

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Properties
Appearance & Physical State
COLOURLESS LIQUID
Density
0.943
Boiling Point
100ºC
Melting Point
-48ºC
Flash Point
8ºC
Refractive Index
1.413-1.415
Storage Condition
Refrigerator
Safety Info
Safety Statements
S24-S37-S46
Risk Statements
R11; R37/38; R43
HS Code
3824909990
RIDADR
UN 1247
Packing Group
II
Hazard Codes
MSDS
SDS 1.0
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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name methyl methacrylate

1.2 Other means of identification

Product number -
Other names 2-Propenoic acid, 2-methyl-, methyl ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Methyl methacrylate is used in the manufacture of methacrylate resins and plastics (e.g., Plexiglas). (,,,11) The principal uses of methyl methacrylate are: cast sheet and other grades (advertising signs and displays, lighting fixtures, glazing and skylights, building panels and sidings, and plumbing and bathroom fixtures), molding/extrusion powder, and coatings (latex paints, lacquer, and enamel resins). Methyl methacrylate is used in the impregnation of concrete to make it water-repellent, and also has uses in the fields of medicine and dentistry to make prosthetic devices and as a ceramic filler or cement.
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Flammable liquids, Category 2

Skin irritation, Category 2

Skin sensitization, Category 1

Specific target organ toxicity – single exposure, Category 3

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H225 Highly flammable liquid and vapour

H315 Causes skin irritation

H317 May cause an allergic skin reaction

H335 May cause respiratory irritation

Precautionary statement(s)
Prevention

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P233 Keep container tightly closed.

P240 Ground and bond container and receiving equipment.

P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.

P242 Use non-sparking tools.

P243 Take action to prevent static discharges.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P264 Wash ... thoroughly after handling.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P272 Contaminated work clothing should not be allowed out of the workplace.

P271 Use only outdoors or in a well-ventilated area.

Response

P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower].

P370+P378 In case of fire: Use ... to extinguish.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P321 Specific treatment (see ... on this label).

P332+P313 If skin irritation occurs: Get medical advice/attention.

P362+P364 Take off contaminated clothing and wash it before reuse.

P333+P313 If skin irritation or rash occurs: Get medical advice/attention.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P312 Call a POISON CENTER/doctor/…if you feel unwell.

Storage

P403+P235 Store in a well-ventilated place. Keep cool.

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

P405 Store locked up.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
methyl methacrylate methyl methacrylate 80-62-6 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest. Refer for medical attention.

In case of skin contact

Remove contaminated clothes. Rinse and then wash skin with water and soap.

In case of eye contact

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

If swallowed

Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .

4.2 Most important symptoms/effects, acute and delayed

Irritation of eyes, nose, and throat. Nausea and vomiting. Liquid may cause skin irritation. (USCG, 1999)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Esters and related compounds/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Use dry chemical, carbon dioxide, or foam extinguishers. Vapors are heavier than air and will collect in low areas. Vapors may travel long distances to ignition sources and flashback. Vapors in confined areas may explode when exposed to fire. Containers may explode in fire. Storage containers and parts of containers may rocket great distances, in many directions. If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Notify local health and fire officials and pollution control agencies. From a secure, explosion-proof location, use water spray to cool exposed containers. If cooling streams are ineffective (venting sound increases in volume and pitch, tank discolors or shows any signs of deforming), withdraw immediately to a secure position.

5.2 Specific hazards arising from the chemical

Behavior in Fire: Vapor is heavier than air and may travel a considerable distance to a source of ignition and flash back. Containers may explode in fire or when heated because of polymerization. (USCG, 1999)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Personal protection: chemical protection suit and filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Remove all ignition sources. Do NOT wash away into sewer. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.

6.3 Methods and materials for containment and cleaning up

SRP: Wastewater from contaminant suppression, cleaning of protective clothing/equipment, or contaminated sites should be contained and evaluated for subject chemical or decomposition product concentrations. Concentrations shall be lower than applicable environmental discharge or disposal criteria. Alternatively, pretreatment and/or discharge to a permitted wastewater treatment facility is acceptable only after review by the governing authority and assurance that "pass through" violations will not occur. Due consideration shall be given to remediation worker exposure (inhalation, dermal and ingestion) as well as fate during treatment, transfer and disposal. If it is not practicable to manage the chemical in this fashion, it must be evaluated in accordance with EPA 40 CFR Part 261, specifically Subpart B, in order to determine the appropriate local, state and federal requirements for disposal.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Fireproof. Separated from strong oxidants, strong bases and strong acids. Cool. Keep in the dark. Keep in a well-ventilated room. Store only if stabilized.Before entering confined space where this chemical may be present, check to make sure that an explosive concentration does not exist. Methyl methacrylate must be stored to avoid contact with oxidizers, such as nitrates, permanganates, perchlorates, chlorates, and peroxides; strong alkalis, such as sodium hydroxide and potassium hydroxide, and strong acids, such as nitric acid, hydrochloric acid, and sulfuric acid, since violent reactions occur. Store in tightly closed containers in a cool, well ventilated area away from light, heat, and ionizing radiation, because methyl methacrylate will react and release heat quickly causing an explosion. Store with an appropriate inhibitor. Lack of an appropriate inhibitor may cause an explosive reaction.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

Recommended Exposure Limit: 10 hr Time-Weighted avg: 100 ppm (410 mg/cu m).

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state COLOURLESS LIQUID
Colour Colorless volatile liquid
Odour Characteristic quality: sulfur-like, sweet, sharp; hedonic tone: unpleasant
Melting point/ freezing point 162°C(lit.)
Boiling point or initial boiling point and boiling range 100°C
Flammability Class IB Flammable Liquid: Fl.P. below 22.78°C and BP at or above 37.78°C.Highly flammable.
Lower and upper explosion limit / flammability limit Lower 1.7%; Upper 8.2% (by volume)
Flash point 9°C(lit.)
Auto-ignition temperature 421.11°C (USCG, 1999)
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility 1 to 10 mg/mL at 17.5°C
Partition coefficient n-octanol/water (log value) log Kow = 1.38
Vapour pressure 40 mm Hg at 25.5°C
Density and/or relative density 0.943
Relative vapour density 3.45 (Relative to Air)
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

A very dangerous fire hazard when exposed to heat or flame ...The vapour mixes well with air, explosive mixtures are easily formed. Vapours are uninhibited and may polymerize, causing blockage of vents.METHYL METHACRYLATE MONOMER, may polymerize if contaminated or subjected to heat. If polymerization takes place in a container, the container is subject to violent rupture. Oxidizes readily in air to form unstable peroxides that may explode spontaneously [Bretherick 1979. p.151-154, 164]. Peroxides may also initiate exothermic polymierization of the bulk material [Bretherick 1979. p. 160]. Benzoyl peroxide was weighed into a beaker that had previously been rinsed with methyl methacrylate. The peroxide catalyzed polymerization of the methyl methacrylate and the build-up of heat ignited the remaining peroxide [MCA Case History 996. 1964].

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

... Can react with oxidizing materials.

10.6 Hazardous decomposition products

When heated to decomposition it emits acrid smoke and irritating fumes.

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat oral 9400 mg/kg.
  • Inhalation: LC50 Rat inhalation 11,250 - 12,500 ppm/2 hr
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

Evaluation: There is inadequate evidence in humans for the carcinogenicity of methyl methacrylate. There is evidence suggesting lack of carcinogenicity of methyl methacrylate in experimental animals. Overall evaluation: Methyl methacrylate is not classifiable as to its carcinogenicity to humans (Group3).

Reproductive toxicity

No adequate reproductive or developmental studies in humans are available. Inhalation exposure of rats to maternally-toxic levels of methyl methacrylate resulted in fetal abnormalities (hematomas and skeletal anomalies) and decreased fetal weight and crown-rump length.

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: LC50; Species: Lepomis macrochirus (Bluegill, juvenile, length 3.65 cm, weight 0.90 g); Conditions: freshwater, flow through, 22°C, pH 6-8, dissolved oxygen >7.5 mg/L; Concentration: 420 mg/L for 1 hr /practical grade
  • Toxicity to daphnia and other aquatic invertebrates: LC50; Species: Daphnia magna (Water flea, age < or =24 hr); Conditions: freshwater, static, 20-22°C, pH 7.6-7.7; Concentration: 1760 mg/L for 24 hr /formulation
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

AEROBIC: Methyl methacrylate, present at 100 mg/L, reached 94% of its theoretical BOD in 2 weeks using an activated sludge inoculum in the Japanese MITI test(1). In the modified Japanese MITI test, methyl methacrylate reached 32% of its theoretical BOD after 28 days; in a closed bottle test, methyl methacrylate released 88% of carbon dioxide evolution after 28 days; and >95% methyl methacrylate was degraded in the Zahn-Wellens test, time not specified(2). Methyl methacrylate was reported to be completely degraded by activated sludge in approximately 20 hours(3). In a standard biodegradability test using sewage seed, 42% of the theoretical BOD was consumed in 19 days, including a 3-4 day lag period; with acclimated seed, 66% of the theoretical BOD was consumed in 22 days(4). The biodegradation rate for methyl methacrylate at 75 ppm starting concentration, treated using a mixed microbial population immobilized in calcium alginate gel, was 9.3 ppm/hr; this corresponded to 89% removal due to biodegradation(5).

12.3 Bioaccumulative potential

An estimated BCF of 4 was calculated in fish for methyl methacrylate(SRC), using a log Kow of 1.38(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

12.4 Mobility in soil

The Koc of methyl methacrylate has been measured as 9-72(1) and as high as 95(2). According to a classification scheme(3), this Koc range suggests that methyl methacrylate is expected to have very high to high mobility in soil.

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN1247 IMDG: UN1247 IATA: UN1247

14.2 UN Proper Shipping Name

ADR/RID: METHYL METHACRYLATE MONOMER, STABILIZED
IMDG: METHYL METHACRYLATE MONOMER, STABILIZED
IATA: METHYL METHACRYLATE MONOMER, STABILIZED

14.3 Transport hazard class(es)

ADR/RID: 3 IMDG: 3 IATA: 3

14.4 Packing group, if applicable

ADR/RID: II IMDG: II IATA: II

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
methyl methacrylate methyl methacrylate 80-62-6 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 12, 2017
Revision Date Aug 12, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.
MSDS
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Name: Methyl methacrylate 99% stabilized with 10 - 20 ppm MEHQ Material Safety Data Sheet
Synonym: Methyl methacrylate monomer; Methacrylic acid, methyl ester; MMA
CAS: 80-62-6
Section 1 - Chemical Product   MSDS Name:Methyl methacrylate 99% stabilized with 10 - 20 ppm MEHQ Material Safety Data Sheet
Synonym:Methyl methacrylate monomer; Methacrylic acid, methyl ester; MMA

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
80-62-6 Methyl methacrylate 99 201-297-1
Hazard Symbols: XI F
Risk Phrases: 11 37/38 43

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Highly flammable. Irritating to respiratory system and skin. May cause sensitization by skin contact.Corrosive.Light sensitive.Air sensitive.Heat sensitive.
Potential Health Effects
Eye:
Contact with eyes may cause severe irritation, and possible eye burns. May cause eye injury.
Skin:
May cause severe skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
Ingestion:
May cause central nervous system depression, kidney damage, and liver damage. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause allergic reaction.
Inhalation:
Inhalation of high concentrations may cause central nervous system effects characterized by nausea, headache, dizziness, unconsciousness and coma. May cause respiratory tract irritation. May cause effects similar to those described for ingestion.
Chronic:
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration. May cause reproductive and fetal effects. Repeated exposure may cause tingling in the extremities and other nervous system abnormalities.

Section 4 - FIRST AID MEASURES
  Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors can travel to a source of ignition and flash back. Flammable Liquid. Can release vapors that form explosive mixtures at temperatures above the flashpoint. Use water spray to keep fire-exposed containers cool. Vapor may cause flash fire. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. May form explosive peroxides. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. May polymerize explosively when involved in a fire. Containers may explode when heated.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Water may be ineffective. For large fires, use water spray, fog or alcohol-resistant foam. Do NOT use straight streams of water. Cool containers with flooding quantities of water until well after fire is out.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Ground and bond containers when transferring material. Avoid contact with skin and eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid ingestion and inhalation. If peroxide formation is suspected, do not open or move container. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. After opening, purge container with nitrogen before reclosing. Periodically test for peroxide formation on long-term storage. Addition of water or appropriate reducing materials will lessen peroxide formation.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 80-62-6: United Kingdom, OES - TWA: 50 ppm TWA; 208 mg/m3 TWA United Kingdom, OES - STEL: 100 ppm STEL; 416 mg/m3 STEL United States OSHA: 100 ppm TWA; 410 mg/m3 TWA Belgium - TWA: 100 ppm VLE; 416 mg/m3 VLE France - VME: 100 ppm VME; 410 mg/m3 VME France - VLE: 200 ppm VLE; 820 mg/m3 VLE Germany: 50 ppm TWA; 210 mg/m3 TWA Malaysia: 100 ppm TWA; 410 mg/m3 TWA Netherlands: 50 ppm MAC; 100 mg/m3 MAC Russia: 10 mg/m3 TWA Spain: 50 ppm VLA-ED; 208 mg/m3 VLA-ED Spain: 100 ppm VLA-EC; 416 mg/m3 VLA-EC CAS# 150-76-5: United Kingdom, OES - TWA: 5 mg/m3 TWA Belgium - TWA: 5 mg/m3 VLE France - VME: 5 mg/m3 VME Germany: 5 mg/m3 TWA Malaysia: 5 mg/m3 TWA Netherlands: 5 mg/m3 MAC Spain: 5 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Liquid
Color: colorless
Odor: sweetish odor - sharp odor
pH: Not available.
Vapor Pressure: 28 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 212 deg F
Freezing/Melting Point: -54.4 deg F
Autoignition Temperature: 790 deg F ( 421.11 deg C)
Flash Point: 50 deg F ( 10.00 deg C)
Explosion Limits, lower: 1.7
Explosion Limits, upper: 8.2
Decomposition Temperature: Not available.
Solubility in water: Slightly soluble in water.
Specific Gravity/Density: 0.94 (water=1)
Molecular Formula: C5H8O2
Molecular Weight: 100.0548

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable only if stored and handled under recommended conditions. The stability of the product depends upon the availability of both dissolved oxygen and MEHQ inhibitor(CAS=150-76-5). The presence of oxygen is necessary for the MEHQ to function effectively. The product should never be stored under an inert gas atmosphere, but should always be stored under an atmosphere containing 5-21% oxygen by volume.
Conditions to Avoid:
High temperatures, incompatible materials, light, ignition sources, exposure to air, loss of inhibitor.
Incompatibilities with Other Materials:
Substance is incompatible with polymerization catalysts (peroxides, persulfates), nitric acid, strong oxidizers, amines, halogens, bases, light, heat.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: May occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 80-62-6: OZ5075000 CAS# 150-76-5: SL7700000 LD50/LC50:
CAS# 80-62-6: Draize test, rabbit, eye: 150 mg; Inhalation, mouse: LC50 = 18500 mg/m3/2H; Inhalation, rat: LC50 = 78000 mg/m3/4H; Oral, mouse: LD50 = 3625 mg/kg; Oral, rabbit: LD50 = 8700 mg/kg; Oral, rat: LD50 = 7872 mg/kg; Skin, rabbit: LD50 = >5 gm/kg.
CAS# 150-76-5: Draize test, rabbit, skin: 6 gm/12D (Intermittent) Mild; Draize test, rabbit, skin: 10%; Oral, rat: LD50 = 1600 mg/kg.
Carcinogenicity:
Methyl methacrylate - Not listed by ACGIH, IARC, or NTP.
4-Methoxyphenol - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Other No information available.

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: METHYL METHACRYLATE MONOMER, INHIBITED
Hazard Class: 3
UN Number: 1247
Packing Group: II
IMO
Shipping Name: METHYL METHACRYLATE MONOMER, INHIBITED
Hazard Class: 3.2
UN Number: 1247
Packing Group: II
RID/ADR
Shipping Name: METHYLMETHACRYLATE MONOMER, INHIBITED
Hazard Class: 3
UN Number: 1247
Packing group: II
USA RQ: CAS# 80-62-6: 1000 lb final RQ; 454 kg final RQ

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI F
Risk Phrases:
R 11 Highly flammable.
R 37/38 Irritating to respiratory system and skin.
R 43 May cause sensitization by skin contact.
Safety Phrases:
S 24 Avoid contact with skin.
S 37 Wear suitable gloves.
S 46 If swallowed, seek medical advice immediately
and show this container or label.
WGK (Water Danger/Protection)
CAS# 80-62-6: 1
CAS# 150-76-5: 1
Canada
CAS# 80-62-6 is listed on Canada's DSL List.
CAS# 150-76-5 is listed on Canada's DSL List.
CAS# 80-62-6 is listed on Canada's Ingredient Disclosure List.
CAS# 150-76-5 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 80-62-6 is listed on the TSCA inventory.
CAS# 150-76-5 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A
Spectrum
NMR Spectrum 1H NMR : 90 MHz in CDCl3
expand collapse
IR Spectrum IR : liquid film
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Mass Spectrum Mass spectrum (electron ionization)
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Raman Spectrum Raman : 4880 A,200 M,liquid
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UV Spectrum UV/Visible spectrum
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Analysis Methods
Kovats' RI, non-polar column, isothermal
expand collapse
Column Shape
Capillary
Active Phase(℃)
RTX-5
Retention index
714.3
Temperature Control
100.
Method
isothermal
Comments
30. m/0.25 mm/0.25 μm, N2
Reference
Ádámová, M.Orinák, A.Halás, L.Retention indices as identification tool in pyrolysis-capillary gas chromatographyJ. Chromatogr. A2005, 1087, 1-2, 131-141.
Kovats' RI, non-polar column, isothermal
expand collapse
Column Shape
Capillary
Active Phase(℃)
RTX-5
Retention index
717.33
Temperature Control
120.
Method
isothermal
Comments
30. m/0.25 mm/0.25 μm, N2
Reference
Ádámová, M.Orinák, A.Halás, L.Retention indices as identification tool in pyrolysis-capillary gas chromatographyJ. Chromatogr. A2005, 1087, 1-2, 131-141.
Kovats' RI, non-polar column, isothermal
expand collapse
Column Shape
Capillary
Active Phase(℃)
RTX-5
Retention index
716.28
Temperature Control
60.
Method
isothermal
Comments
30. m/0.25 mm/0.25 μm, N2
Reference
Ádámová, M.Orinák, A.Halás, L.Retention indices as identification tool in pyrolysis-capillary gas chromatographyJ. Chromatogr. A2005, 1087, 1-2, 131-141.
Kovats' RI, non-polar column, isothermal
expand collapse
Column Shape
Capillary
Active Phase(℃)
RTX-5
Retention index
713.44
Temperature Control
80.
Method
isothermal
Comments
30. m/0.25 mm/0.25 μm, N2
Reference
Ádámová, M.Orinák, A.Halás, L.Retention indices as identification tool in pyrolysis-capillary gas chromatographyJ. Chromatogr. A2005, 1087, 1-2, 131-141.
Kovats' RI, non-polar column, isothermal
expand collapse
Column Shape
Capillary
Active Phase(℃)
OV-101
Retention index
696.
Temperature Control
120.
Method
isothermal
Comments
N2; Column length: 19. m; Column diameter: 0.28 mm
Reference
Horna, A.Táborský, J.Dufka, O.Matousek, P.Churácek, J.Chromatography of monomers. II. Glass capillary gas chromatography of C1-C18 alkyl esters of acrylic and methacrylic acidsJ. Chromatogr.1985, 325, 367-378.
Toxicity
SKIN/EYE IRRITATION DATA
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Type of Test
Open irritation test
Exposure Route
Administration onto the skin
Species Observed
Rodent - rabbit
Dose/Duration
10 gm/kg
Toxic Effects
--
Reference
Journal of Industrial Hygiene and Toxicology. (Cambridge, MA) V.18-31, 1936-49. For publisher information, see AEHLAU. Volume(issue)/page/year: 23,343,1941
SKIN/EYE IRRITATION DATA
expand collapse
Type of Test
Standard Draize test
Exposure Route
Administration into the eye
Species Observed
Rodent - rabbit
Dose/Duration
150 mg
Toxic Effects
--
Reference
Industrial Medicine. (Chicago, IL) V.1-18, 1932-49. For publisher information, see IOHSA5. Volume(issue)/page/year: 14,292,1945
ACUTE TOXICITY DATA
expand collapse
Type of Test
TCLo - Lowest published toxic concentration
Exposure Route
Inhalation
Species Observed
Human
Dose/Duration
125 ppm
Toxic Effects
Behavioral--sleep<br>Behavioral--excitement<br>Behavioral--anorexia (human)
Reference
Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 19(10),25,1954

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