propionic acid

CAS No. 79-09-4

Formula: C3H6O2
Basic Info

Propionic acid (from the Greek words protos, meaning "first", and pion, meaning "fat"; also known as propanoic acid) is a naturally occurring carboxylic acid with chemical formula CH3CH2COOH. It is a clear liquid with a pungent and unpleasant smell somewhat resembling body odor. The anion CH3CH2COO− as well as the salts and esters of propionic acid are known as propionates (or propanoates).

Formula
C3H6O2
Molecular Weight
74.0785
Exact Mass
74.0368
LogP
0.481
PSA
37.3
Synonyms

Propanoic acid

Propionic acid

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Properties
Appearance & Physical State
Clear, colorless liquid
Density
0.9934
Boiling Point
141ºC
Melting Point
-22ºC
Flash Point
51ºC
Refractive Index
1.385-1.387
Water Solubility
37 g/100 mL
Stability
Stable. Incompatible with strong oxidizing agents. Flammable.
Storage Condition
0-6ºC
Vapor Density
2.55 (vs air)
Vapor Pressure
2.4 mm Hg ( 20 °C)
Safety Info
RTECS
UE5950000
Safety Statements
S23-S36-S45
WGK Germany
1
Risk Statements
R34
HS Code
2915501000
RIDADR
UN 3463 8/PG 2
Hazard Class
8
Packing Group
II
Caution Statement
P210; P280; P303 + P361 + P353; P304 + P340 + P310; P305 + P351 + P338; P403 + P235
Hazard Codes
Hazard Declaration
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 propionic acid

1.2 Other means of identification

Product number -
Other names Propionic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives
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

Skin corrosion, Category 1B

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H314 Causes severe skin burns and eye damage

Precautionary statement(s)
Prevention

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P264 Wash ... thoroughly after handling.

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

Response

P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

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

P363 Wash contaminated clothing before reuse.

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

P310 Immediately call a POISON CENTER/doctor/…

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

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Storage

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
propionic acid propionic acid 79-09-4 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. Half-upright position. Refer for medical attention.

In case of skin contact

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

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. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention .

4.2 Most important symptoms/effects, acute and delayed

Liquid causes skin and eye burns. Vapors may irritate eeyes, nose, and throat, but should not cause systemic illness. (USCG, 1999)

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

Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist respirations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... Monitor for shock and treat if necessary ... For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Activated charcoal is not effective ... Do not attempt to neutralize because of exothermic reaction. Cover skin bumps with dry, sterile dressings after decontamination ... /Organic acids and related compounds/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Use water spray, dry chemical, "alcohol resistant" foam, or carbon dioxide. Use water spray to keep fire-exposed containers cool.

5.2 Specific hazards arising from the chemical

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: Flammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. (ERG, 2016)

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

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. Do NOT let this chemical enter the environment. Personal protection: chemical protection suit including self-contained breathing apparatus.

6.3 Methods and materials for containment and cleaning up

Use water spray to cool and disperse vapors, protect personnel, and dilute spills to form nonflammable mixtures. Control runoff and isolate discharged material for proper 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 food and feedstuffs.Outside or detached storage is preferred. Store in a cool, dry, well-ventilated location.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 10 ppm (30 mg/cu m).

Recommended Exposure Limit: 15 Min Short-Term Exposure Limit: 15 ppm (45 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 Clear, colorless liquid
Colour Colorless, oily liquid [Note: A solid below 5 degrees F]
Odour Slightly pungent disagreeable, rancid odor
Melting point/ freezing point 17°C(lit.)
Boiling point or initial boiling point and boiling range 141°C(lit.)
Flammability Class II Combustible Liquid: Fl.P. at or above 37.78°C and below 60°C.Flammable.
Lower and upper explosion limit / flammability limit Lower flammable limit: 2.9% by volume; Upper flammable limit: 12.1% by volume
Flash point 54°C
Auto-ignition temperature 512.78°C
Decomposition temperature no data available
pH no data available
Kinematic viscosity cP: 1.175 at 15°C; 1.020 at 25°C; 0.956 at 30°C; 0.668 at 60°C; 0.495 at 90°C
Solubility In water:37 g/100 mL
Partition coefficient n-octanol/water (log value) no data available
Vapour pressure 2.4 mm Hg ( 20 °C)
Density and/or relative density 0.993g/mLat 25°C(lit.)
Relative vapour density 2.55 (vs 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

Flammable liquid. Highly flammable when exposed to heat, flame, or oxidizers.PROPIONIC ACID is a colorless, oily liquid, moderately toxic, corrosive. Flammable when exposed to heat, flame or oxidizers. When heated to decomposition it emits acrid smoke and irritating fumes [Lewis, 3rd ed., 1993, p. 1090].

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Alkalis, strong oxidizers (e.g., chromium trioxide) [Note: Corrosive to steel].

10.6 Hazardous decomposition products

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

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat single oral > 400 mg/kg
  • Inhalation: no data available
  • 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

no data available

Reproductive toxicity

no data available

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 Pimephales promelas (Fathead minnow) 4740 mg/L/96 hr (confidence limit 4390-5120 mg/L), flow-through bioassay with measured concentrations, 24.7°C, dissolved oxygen 6.1 mg/L, hardness 40.5 mg/L CaCO3, alkalinity 42.2 mg/L CaCO3, and pH 7.60. Tank concentrations were corrected for sodium concentrations of 23.9%. /Propionic acid sodium salt
  • Toxicity to daphnia and other aquatic invertebrates: LC50 Daphnia magna 130 mg/L/24 hr /Conditions of bioassay not specified
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

AEROBIC: a number of aerobic biological screening studies, which utilized settled waste water, sewage, or activated sludge for inocula, have demonstrated that propionic acid is readily biodegradable(1-14). For example, 5 day theoretical BOD's of 23-55%(6), 37%(15), 40%(9) and 71%(2) have been reported. These studies indicate propionic acid should degrade rapidly under most environmental conditions.

12.3 Bioaccumulative potential

An estimated BCF of 3.2 was calculated for propionic acid(SRC), using a log Kow of 0.33(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.

12.4 Mobility in soil

The Koc of propionic acid is estimated as 36(SRC), using a log Kow of 0.33(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that propionic acid is expected to have very high mobility in soil. The pKa of propionic acid is 4.87(4), indicating that this compound will primarily exist in anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(5).

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: UN3463 IMDG: UN3463 IATA: UN3463

14.2 UN Proper Shipping Name

ADR/RID: PROPIONIC ACID with not less than 90% acid by mass
IMDG: PROPIONIC ACID with not less than 90% acid by mass
IATA: PROPIONIC ACID with not less than 90% acid by mass

14.3 Transport hazard class(es)

ADR/RID: 8 IMDG: 8 IATA: 8

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
propionic acid propionic acid 79-09-4 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: Propionic acid 99% Material Safety Data Sheet
Synonym: Carboxyethane; Ethanecarboxylic acid; Ethylformic acid; Methylacetic acid; Metacetonic acid; Propanoic acid; Propanoic acid grain preserver; Psuedoacetic acid
CAS: 79-09-4
Section 1 - Chemical Product   MSDS Name:Propionic acid 99% Material Safety Data Sheet
Synonym:Carboxyethane; Ethanecarboxylic acid; Ethylformic acid; Methylacetic acid; Metacetonic acid; Propanoic acid; Propanoic acid grain preserver; Psuedoacetic acid

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
79-09-4 Propionic acid 99 201-176-3
Hazard Symbols: C
Risk Phrases: 34

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Causes burns.
Potential Health Effects
Eye:
May result in corneal injury. Causes severe eye irritation and burns.
Skin:
Harmful if absorbed through the skin. Causes severe skin irritation and burns.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes digestive tract burns with immediate pain, swelling of the throat, convulsions, and possible coma. May cause central nervous system depression.
Inhalation:
May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. May cause asthmatic attacks due to allergic sensitization of the respiratory tract. Causes chemical burns to the respiratory tract. Vapors may cause dizziness or suffocation.
Chronic:
Prolonged or repeated skin contact may cause defatting and dermatitis. Laboratory experiments have resulted in mutagenic effects.

Section 4 - FIRST AID MEASURES
  Eyes: Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed. Extensive irrigation with water is required (at least 30 minutes).
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. Destroy contaminated shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. 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:
Treat symptomatically and supportively.

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 may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire.
Flammable liquid and vapor. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas.
Extinguishing Media:
Water may be ineffective. Do NOT use straight streams of water. Use water spray, dry chemical, carbon dioxide, or alcohol-resistant foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Use water spray to dilute spill to a non-flammable mixture. Large spills may be neutralized with dilute alkaline solutions of soda ash (sodium carbonate, Na2CO3), or lime (calcium oxide, CaO). Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Cover with sand, dry lime or soda ash and place in a closed container for disposal. Remove all sources of ignition.
Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Discard contaminated shoes. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Use only with adequate ventilation. Do not breathe vapor or mist.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Flammables-area. Do not store in steel container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use explosion-proof ventilation equipment. 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# 79-09-4: United Kingdom, OES - TWA: 10 ppm TWA; 31 mg/m3 TWA United Kingdom, OES - STEL: 15 ppm STEL; 46 mg/m3 STEL Belgium - TWA: 10 ppm VLE; 31 mg/m3 VLE Belgium - STEL: 20 ppm VLE; 62 mg/m3 VLE France - VME: 10 ppm VME; 30 mg/m3 VME Germany: 31 mg/m3 TWA Malaysia: 10 ppm TWA; 30 mg/m3 TWA Netherlands: 20 ppm STEL; 62 mg/m3 STEL Netherlands: 10 ppm MAC; 31 mg/m3 MAC Russia: 20 mg/m3 TWA Spain: 10 ppm VLA-ED; 31 mg/m3 VLA-ED Spain: 20 ppm VLA-EC; 62 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Clear liquid
Color: colorless, oily
Odor: rancid odor - pungent odor
pH: Acidic.
Vapor Pressure: 2 mm Hg @ 20 deg C
Viscosity: 1.175 cps @ 15 deg C
Boiling Point: 141 deg C
Freezing/Melting Point: -21 deg C
Autoignition Temperature: 513 deg C ( 955.40 deg F)
Flash Point: 51 deg C ( 123.80 deg F)
Explosion Limits, lower: 2.9 vol %
Explosion Limits, upper: 12.1 vol %
Decomposition Temperature: Not available.
Solubility in water: Soluble.
Specific Gravity/Density: 0.9942 @ 20/4C
Molecular Formula: CH3CH2COOH
Molecular Weight: 74.08

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Ignition sources, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong bases, steel.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 79-09-4: UE5950000 LD50/LC50:
CAS# 79-09-4: Draize test, rabbit, eye: 990 ug Severe; Oral, rat: LD50 = 2600 mg/kg; Skin, rabbit: LD50 = 500 uL/kg.
Carcinogenicity:
Propionic acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Water flea Daphnia: TLm = 130 mg/L; 24 Hr; unspecifiedFish: Fathead Minnow: LC50 = 4740 mg/L; 96 Hr; Flow-through bioassay at 24.7 C (pH 7.60)Volatilization of propionic acid from envioronmental waters and moist soil should be extremely slow. Evaporation form dry surfaces is expected, especially when present in high concentrations such as in spill situation. The hydroysis, photolysis and bioconcentration of propionic acid are not expected to be important fate processes.

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

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: PROPIONIC ACID
Hazard Class: 8
UN Number: 1848
Packing Group: III
IMO
Shipping Name: PROPIONIC ACID
Hazard Class: 8
UN Number: 1848
Packing Group: III
RID/ADR
Shipping Name: PROPIONIC ACID
Hazard Class: 8
UN Number: 1848
Packing group: III
USA RQ: CAS# 79-09-4: 5000 lb final RQ; 2270 kg final RQ

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 34 Causes burns.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 23 Do not inhale gas/fumes/vapour/spray.
S 33 Take precautionary measures against static
discharges.
S 36 Wear suitable protective clothing.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 79-09-4: 1
Canada
CAS# 79-09-4 is listed on Canada's DSL List.
CAS# 79-09-4 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 79-09-4 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A
Spectrum
NMR Spectrum 1H NMR : 90 MHz in CDCl3
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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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