pyridine

CAS No. 110-86-1

Formula: C5H5N
Basic Info

Formula
C5H5N
Molecular Weight
79.0999
Exact Mass
79.0422
LogP
1.0816
PSA
12.89
Synonyms

Pyridine

Pyridine,nonaqueous titration grade

Pyridine,AcroSeal,Extra Dry

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Properties
Appearance & Physical State
Clear clean liquid with characteristic odour
Density
0.978
Boiling Point
115-116ºC
Melting Point
-42ºC
Freezing Point
-42℃
Flash Point
17ºC
Refractive Index
1.5085-1.5105
Water Solubility
Miscible
Stability
Stable. Flammable. Incompatible with strong oxidizing agents, strong acids.
Storage Condition
Store at RT.
Vapor Density
2.72 (vs air)
Vapor Pressure
23.8 mm Hg ( 25 °C)
Safety Info
RTECS
UR8400000
Safety Statements
S26-S28
WGK Germany
2
Risk Statements
R11; R20/21/22
HS Code
2933990090
RIDADR
UN 1282
Hazard Class
3
Packing Group
II
Caution Statement
P210; P261; P280; P305 + P351 + P338; P370 + P378; P403 + P235
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 pyridine

1.2 Other means of identification

Product number -
Other names Pyridine,nonaqueous titration grade

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Benzidines/Aromatic amines
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

Acute toxicity - Oral, Category 4

Acute toxicity - Dermal, Category 4

Acute toxicity - Inhalation, Category 4

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H225 Highly flammable liquid and vapour

H302 Harmful if swallowed

H312 Harmful in contact with skin

H332 Harmful if inhaled

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.

P270 Do not eat, drink or smoke when using this product.

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

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.

P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/…if you feel unwell.

P330 Rinse mouth.

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

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

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

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

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

Storage

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

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
pyridine pyridine 110-86-1 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. Artificial respiration may be needed. 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

Vapor irritates eyes and nose. Liquid irritates skin and is absorbed through the skin. Overexposure causes nausea, headache, nervous symptoms, increased urinary frequency. (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 ventilations 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. Administer activated charcoal ... . /Aromatic hydrocarbons 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. Solid streams of water may be ineffective. Use water spray to keep fire-exposed containers cool.

5.2 Specific hazards arising from the chemical

Behavior in Fire: Vapor is heavier than air and may travel considerable distance to source of ignition and flash back. (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: self-contained breathing apparatus. 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

1. REMOVE ALL IGNITION SOURCES. 2. VENTILATE AREA OF SPILL OR LEAK. 3. FOR SMALL QUANTITIES, ABSORB ON PAPER TOWELS, EVAPORATE IN SAFE PLACE (SUCH AS FUME HOOD). ALLOW SUFFICIENT TIME FOR EVAPORATING VAPORS TO COMPLETELY CLEAR HOOD DUCTWORK. BURN PAPER IN SUITABLE LOCATION AWAY FROM COMBUSTIBLE MATERIAL. 3. LARGE QUANTITIES CAN BE COLLECTED & ATOMIZED IN SUITABLE COMBUSTION CHAMBER EQUIPPED WITH APPROPRIATE EFFLUENT GAS CLEANING DEVICE. PYRIDINE SHOULD NOT BE ALLOWED TO ENTER CONFINED SPACE, SUCH AS SEWER, BECAUSE OF POSSIBILITY OF EXPLOSION.

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 and strong acids. Cool. Dry. Well closed.OUTSIDE OR DETACHED STORAGE IS PREFERABLE. ISOLATE FROM POWERFUL OXIDIZING MATERIALS AND ACIDS.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 ppm (15 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 clean liquid with characteristic odour
Colour Colorless to yellow liquid.
Odour Sharp, nauseating
Melting point/ freezing point -42ºC
Boiling point or initial boiling point and boiling range 115°C(lit.)
Flammability Class IB Flammable Liquid: Fl.P. below 22.78°C and BP at or above 37.78°C.Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire.
Lower and upper explosion limit / flammability limit LOWER 1.8%; UPPER 12.4%
Flash point 17°C
Auto-ignition temperature 481.67°C
Decomposition temperature no data available
pH 8.5 (0.2 molar soln in water)
Kinematic viscosity no data available
Solubility In water:Miscible
Partition coefficient n-octanol/water (log value) log Kow = 0.65
Vapour pressure 23.8 mm Hg ( 25 °C)
Density and/or relative density 0.978g/mLat 25°C(lit.)
Relative vapour density 2.72 (vs air)
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Mixtures with formamide + iodine + sulfur trioxide are storage hazards, releasing carbon dioxide & sulfuric acid.

10.3 Possibility of hazardous reactions

Pyridine is a flammable ... liquid.The vapour is heavier than air and may travel along the ground; distant ignition possible.PYRIDINE is a base. Reacts exothermically with acids. During preparation of a complex of pyridine with chromium trioxide, an acid, the proportion of chromium trioxide was increased. Heating from this acid-base reaction led to an explosion and fire [MCA Case History 1284 1967]. A 0.1% solution of pyridine (or other tertiary amine) in maleic anhydride at 185°C gives an exothermic decomposition with rapid evolution of gas [Chem Eng. News 42(8); 41 1964]. Mixing pyridine in equal molar portions with any of the following substances in a closed container caused the temperature and pressure to increase: chlorosulfonic acid, nitric acid (70%), oleum, sulfuric acid (96%), or propiolactone [NFPA 1991]. The combination of iodine, pyridine, sulfur trioxide, and formamide developed a gas over pressurization after several months. This arose from the slow formation of sulfuric acid from external water, or from dehydration of the formamide to hydrogen cyanide. Ethylene oxide and SO2 can react violently in pyridine solution with pressurization if ethylene oxide is in excess (Nolan, 1983, Case History 51).

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

PYRIDINE REACTS VIOLENTLY WITH CHLOROSULFONIC ACID, CHROMIC ACID, MALEIC ANHYDRIDE, NITRIC ACID, FUMING SULFURIC ACID, PERCHROMATES, BETA-PROPIOLACTONE, SILVER PERCHLORATE, & SULFURIC ACID.

10.6 Hazardous decomposition products

When pyridine is heated to decomposition, cyanide fumes are released.

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat oral 1.58 g/kg
  • Inhalation: LC50 Rat inhalation 9000 ppm for 1 hr
  • Dermal: LD50 Guinea pig percutaneous 1.0 - 2.0 ml/kg

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

A3: Confirmed animal carcinogen with unknown relevance to humans.

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) 106 mg/l/96 hr, flow-through bioassay with measured concentrations, 24.1°C, dissolved oxygen 7.4 mg/l, hardness 47.4 mg/l CaCO3, alkalinity 240 mg/l CaCO3, and pH 7.73.
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

Results of biodegradability screening tests for pyridine using sewage or activated sludge inocula give mixed results ranging from rapid to no degradation(1-5,7). Although biodegradability is improved in longer tests employing a more vigorous inocula, sometimes the same test gives disparate results(1-4,7). Variations in the particular sewage or activated sludge inoculum would affect test results. One investigator obtained results ranging from 97% degradation in 6 days to no degradation in 30 days in 6 different standard tests(1). After a preincubation step was added to one test in which no degradation was observed in 19 days, degradability increased to 91%(3). However the closed bottle test which employs only a drop of sewage effluent as an inoculum, registered no degradation even with a preincubation step(1,3). Tests that were designed to simulate biological treatment plants resulted in complete and rapid removal of pyridine(1,9). In one test that employed a soil suspension as an inoculum, 100% degradation was obtained in 66-170 days(6). When this test was repeated under anaerobic conditions, degradation was more rapid(6). Complete degradation was obtained in 32-66 days(6). When 2 micromoles/g of pyridine was incubated with a silt loam soil, 11.7% remained after 4 days and none remained after 8 days(8). The biodegradation rate constant for pyridine in water was 0.0033 - 0.018 per hour which corresponds to half-lives of 39-210 hours(10).

12.3 Bioaccumulative potential

The bioconcentration factor in guppies exposed to an unspecified concentration of pyridine over a 2-day incubation period was 88(1). According to a classification scheme(2), this BCF suggests the bioconcentration in aquatic organisms moderate.

12.4 Mobility in soil

The Koc of pyridine is estimated as 50(SRC), using a measured log Kow of 0.65(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that pyridine is expected to have high mobility in soil. The pKa of pyridine is 5.23(4), which indicates that pyridine will partially exist in the protonated form under acidic conditions and cations adsorb more strongly to soil surfaces than neutral molecules(SRC). The adsorption of pyridine to a basic subsoil (pH 8.15, 0.58% organic carbon) is negligible, while in an acidic subsoil (pH 4.85, O.24% organic carbon), the Freundlich adsorption constant was measured to be 5.78 and the slope 0.679(5). This suggests a cationic adsorption mechanism as pyridine is predominantly in its protonated form. Pyridine adsorbs to colloidal particles of sodium montmorillonite and kaolinite, a process which is attributed to cation exchange and is a function of pH(5). Adsorption is at a minimum at pH 1 and 11 and reaches a maximum at pH 4 for the montmorillonite and pH 5.5 for the kaolinite where the adsorption constants are 60 and 10, respectively(6).

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: UN1282 IMDG: UN1282 IATA: UN1282

14.2 UN Proper Shipping Name

ADR/RID: PYRIDINE
IMDG: PYRIDINE
IATA: PYRIDINE

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
pyridine pyridine 110-86-1 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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  Pyridine [Sequencing Solvent]      Revision number: 6    
  SAFETY DATA SHEET

Section 1. IDENTIFICATION
  Product name:        Pyridine [Sequencing Solvent]    
    
  Revision number:        6    

Section 2. HAZARDS IDENTIFICATION
  GHS classification
  PHYSICAL HAZARDS
    Category 2
  Flammable liquids
  HEALTH HAZARDS
    Category 4
  Acute toxicity (Oral)
  Acute toxicity (Dermal)        Category 3    
    Category 4
  Acute toxicity (Inhalation)
  Skin corrosion/irritation        Category 1B    
    Category 1
  Serious eye damage/eye irritation
  Carcinogenicity        Category 2    
    Category 2
  Reproductive toxicity
  Specific target organ toxicity        Respiratory system, Nervous system    
  - Single exposure [Category 1]
  Specific target organ toxicity        Narcotic effects    
  - Single exposure [Category 3]
  Specific target organ toxicity        Liver, Nervous system, Kidney    
  - Repeated exposure [Category 1]
  Specific target organ toxicity        Blood system    
  - Repeated exposure [Category 2]
  ENVIRONMENTAL HAZARDS
  Acute aquatic hazard        Category 1    
  GHS label elements, including precautionary statements
  Pictograms or hazard symbols
  Signal word        Danger    
  Hazard statements        Highly flammable liquid and vapour    
    Harmful if swallowed or if inhaled
    Toxic in contact with skin
    Causes severe skin burns and eye damage
    Suspected of causing cancer
    Suspected of damaging fertility or the unborn child
    Causes damage to organs : Respiratory system Nervous
    system
  Pyridine [Sequencing Solvent]

Section 2. HAZARDS IDENTIFICATION
    Causes damage to organs through prolonged or repeated
    exposure : Liver Nervous system Kidney
    May cause damage to organs through prolonged or
    repeated exposure : Blood system
    May cause drowsiness or dizziness
    Very toxic to aquatic life
  Precautionary statements:
  [Prevention]        Obtain special instructions before use.    
    Do not handle until all safety precautions have been read and understood.
    Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
    Keep container tightly closed.
    Use explosion-proof electrical/ventilating/lighting equipment. Take precautionary
    measures against ignition by the static discharge and the spark.
    Do not breathe dust/fume/gas/mist/vapours/spray.
    Use only outdoors or in a well-ventilated area.
    Avoid release to the environment.
    Do not eat, drink or smoke when using this product.
    Wash hands thoroughly after handling.
    Wear protective gloves and eye/face protection.
  [Response]        IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for    
    breathing. Call a POISON CENTER or doctor/physician if you feel unwell.
    IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
    IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses,
    if present and easy to do. Continue rinsing.
    IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse
    skin with water/shower.
    Remove/Take off immediately all contaminated clothing.
    Wash contaminated clothing before reuse.
    Immediately call a POISON CENTER or doctor/physician.
    Collect spillage.
  [Storage]        Store in a well-ventilated place. Keep container tightly closed.    
    Store locked up.
  [Disposal]        Dispose of contents/container through a waste management company authorized by    
    the local government.

Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
  Substance/mixture:        Substance    
    Pyridine [Sequencing Solvent]
  Components:
  Percent:        >99.0%(GC)    
    110-86-1
  CAS Number:
  Chemical Formula:        C5H5N    

Section 4. FIRST AID MEASURES
  Inhalation:        Remove victim to fresh air and keep at rest in a position comfortable for breathing.    
    Immediately call a POISON CENTER or doctor/physician.
  Skin contact:        Remove/Take off immediately all contaminated clothing. Gently wash with plenty of    
    soap and water. Immediately call a POISON CENTER or doctor/physician.
  Eye contact:        Rinse cautiously with water for several minutes. Remove contact lenses, if present    
    and easy to do. Continue rinsing.Immediately call a POISON CENTER or
    doctor/physician.
    Immediately call a POISON CENTER or doctor/physician. Rinse mouth. Do NOT
  Ingestion:
    induce vomiting.
  Most important        Cough, Dizziness, Headache, Nausea, Shortness of breath, Unconsciousness,    
  symptoms/effects, acute        Abdominal pain, Diarrhoea, Vomiting, Weakness, Redness, Burning sensation, Pain    
  and delayed:
  Pyridine [Sequencing Solvent]
  Protection of first-aiders: A rescuer should wear personal protective equipment, such as rubber gloves and air-
    tight goggles.
  Indication of immediate Depending on the degree of exposure, periodic medical examination is indicated.
  medical attantion and
  special treatment needed, if
  necessary:

Section 5. FIRE-FIGHTING MEASURES
  Suitable extinguishing        Dry chemical, foam, water in large amounts, carbon dioxide.    
  media:
  Specific hazards arising Take care as it may decompose upon combustion or in high temperatures to
  from the chemical:        generate poisonous fume.    
  Precautions for firefighters: Fire-extinguishing work is done from the windward and the suitable fire-extinguishing
    method according to the surrounding situation is used. Uninvolved persons should
    evacuate to a safe place. In case of fire in the surroundings: Keep containers cool by
    spraying with water. Eliminate all ignition sources if safe to do so.
  Special protective        When extinguishing fire, be sure to wear personal protective equipment.    
  equipment for firefighters:

Section 6. ACCIDENTAL RELEASE MEASURES
  Personal precautions,        Use extra personal protective equipment (self-contained breathing apparatus). Keep    
  protective equipment and people away from and upwind of spill/leak. Ensure adequate ventilation. Entry to non-
  emergency procedures: involved personnel should be controlled around the leakage area by roping off, etc.
  Environmental precautions: Be careful not to let it flow into rivers, etc., since adverse effects on the environment
    are concerned.
  Methods and materials for Absorb spilled material in dry sand or inert absorbent before recovering it into an
  containment and cleaning airtight container. In case of large amount of spillage, contain a spill by bunding.
  up: Adhered or collected material should be promptly disposed of, in accordance with
    appropriate laws and regulations.
  Prevention of secondary Remove all sources of ignition. Fire-extinguishing devices should be prepared in
  hazards:        case of a fire. Use spark-proof tools and explosion-proof equipment.    

Section 7. HANDLING AND STORAGE
  Precautions for safe handling
  Technical measures:        Handling is performed in a well ventilated place. Wear suitable protective equipment.    
    Prevent generation of vapour or mist. Keep away from heat/sparks/open flame/hot
    surfaces. -No smoking. Take measures to prevent the build up of electrostatic
    charge. Use explosion-proof equipment. Wash hands and face thoroughly after
    handling.
    Use a closed system if possible. Use a ventilation, local exhaust if vapour or aerosol
    will be generated.
  Advice on safe handling: Avoid all contact!
  Conditions for safe storage, including any
  incompatibilities
    Keep container tightly closed. Store in a cool, dark and well-ventilated place.
  Storage conditions:
    Store locked up.
    Store away from incompatible materials such as oxidizing agents.
  Packaging material:        Comply with laws.    

Section 8. EXPOSURE CONTROLS / PERSONAL PROTECTION
  Engineering controls:        Install a closed system or local exhaust. Also install safety shower and eye bath.    
  Exposure limits:
  ACGIH TLV(TWA):        5 ppm    
    5 ppm
  OSHA PEL(TWA):
  Personal protective equipment
  Respiratory protection:        Half or full facepiece respirator, self-contained breathing apparatus(SCBA), supplied    
    air respirator, etc. Use respirators approved under appropriate government standards
    and follow local and national regulations.
  Pyridine [Sequencing Solvent]

Section 8. EXPOSURE CONTROLS / PERSONAL PROTECTION
  Hand protection:        Impervious gloves.    
  Eye protection:        Safety goggles. A face-shield, if the situation requires.    
  Skin and body protection: Impervious protective clothing. Protective boots, if the situation requires.

Section 9. PHYSICAL AND CHEMICAL PROPERTIES
  Physical state (20°C):        Liquid    
    Clear
  Form:
  Colour:        Colorless    
  Odour:        Unpleasant    
  pH: 8.5 (0.2 mol H2O soln.)
  Melting point/freezing point:-42°C
  Boiling point/range:        115°C    
  Flash point:        16°C    
  Flammability or explosive
  limits:
  Lower:        1.8%    
  Upper:        12.4%    
  Vapour pressure:        2.0kPa/20°C    
  Vapour density:        2.73    
  Relative density:        0.98    
  Solubility(ies):
  [Water]        Miscible    
  [Other solvents]
  Miscible:        Ether, Alcohols, Benzene, Petroleum ether, Many organic solvents    
  Log Pow:        0.65    
  Autoignition temperature:        482°C    

Section 10. STABILITY AND REACTIVITY
  Chemical stability:        Stable under proper conditions.    
  Possibility of hazardous No special reactivity has been reported.
  reactions:
    Spark, Open flame, Static discharge
  Conditions to avoid:
  Incompatible materials: Oxidizing agents, Strong acids
  Hazardous decomposition Carbon monoxide, Carbon dioxide, Nitrogen oxides (NOx), Hydrogen cyanide
  products:

Section 11. TOXICOLOGICAL INFORMATION
    ihl-rat LC50:28500 mg/m3/1H
  Acute Toxicity:
    ipr-rat LC50:866 mg/kg
    orl-rat LD50:891 mg/kg
    skn-rbt LD50:1121 mg/kg
  Skin corrosion/irritation: skn-rbt 500 mg/24H MLD
    No data available
  Serious eye
  damage/irritation:
  Germ cell mutagenicity: mmo-sat 6 mmol/L/2H (-S9)
  Carcinogenicity:        orl-mus TDLo:11025mg/kg/105W-C    
    orl-rat TDLo:7350 mg/kg/105W-C
  IARC =        Group 3 (Not classifiable as carcinogenic to humans)    
    No data available
  NTP =
  Reproductive toxicity:        No data available    
    UR8400000
  RTECS Number:

Section 12. ECOLOGICAL INFORMATION
  Ecotoxicity:
  Fish:        96h LC50:>100 mg/L (Oryzias latipes)    
  Crustacea:        48h EC50:180 mg/L (Daphnia magna)    
  Algae:        72h EC50:0.041 mg/L (Selenastrum capricornutum)    
  Pyridine [Sequencing Solvent]

Section 12. ECOLOGICAL INFORMATION
  Persistence / degradability: 92 - 94% (by BOD), 100% (by HPLC), 98% (by TOC)
  Bioaccumulative        88    
  potential(BCF):
  Mobility in soil
  Log Pow:        0.65    
    50
  Soil adsorption (Koc):
  Henry's Law        1.1    
  constant(PaM3/mol):

Section 13. DISPOSAL CONSIDERATIONS
    Recycle to process, if possible. Consult your local regional authorities. You may be able to burn in a chemical
    incinerator equipped with an afterburner and scrubber system but exert extra care in igniting as this material is
    highly flammable. Observe all federal, state and local regulations when disposing of the substance

Section 14. TRANSPORT INFORMATION
  Hazards Class:        3: Flammable liquid.    
    1282
  UN-No:
  Proper shipping name:        Pyridine    
    II
  Packing group:
  Marine pollutant        Y    

Section 15. REGULATORY INFORMATION
  Safe management ordinance of dangerous chemical product (State Council announces on January 26, 2002
  and revised on February 16,2011): Safe use and production, the storage of a dangerous chemical, transport,
    loading and unloading were prescribed.
  The list of a dangerous chemical(2002)/CN-No.: 32104


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)
expand collapse
Raman Spectrum Raman : 4880 A,100M,liquid
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ESR Spectrum ESR : MN(II) COMPLEX IN TOLUENE
expand collapse
UV Spectrum UV/Visible spectrum
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Toxicity
SKIN/EYE IRRITATION DATA
expand collapse
Type of Test
Standard Draize test
Exposure Route
Administration onto the skin
Species Observed
Rodent - rabbit
Dose/Duration
500 mg/24H
Toxic Effects
--
Reference
Prehled Prumyslove Toxikologie; Organicke Latky, Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,839,1986
ACUTE TOXICITY DATA
expand collapse
Type of Test
LD50 - Lethal dose, 50 percent kill
Exposure Route
Oral
Species Observed
Rodent - rat
Dose/Duration
891 mg/kg
Toxic Effects
Sense Organs and Special Senses (Eye)--ptosis<br>Behavioral--somnolence (general depressed activity)<br>Behavioral--coma
Reference
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062) Volume(issue)/page/year: 14-4/1970
ACUTE TOXICITY DATA
expand collapse
Type of Test
LC50 - Lethal concentration, 50 percent kill
Exposure Route
Inhalation
Species Observed
Rodent - rat
Dose/Duration
28500 mg/m3/1H
Toxic Effects
Sense Organs and Special Senses (Eye)--lacrimation<br>Behavioral--somnolence (general depressed activity)<br>Lungs, Thorax, or Respiration--dyspnea
Reference
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062) Volume(issue)/page/year: 14-4/1970

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