Product ID:PYRIDINE
MSDS Date:Jan 24 1989
MSDS Number: EEENL
Kit Part:=== Responsible Party ===
Company Name:MATHESON TRI-GAS, INC.
Address:959 ROUTE 46 EAST
City:PARSIPPANY
State:NJ
ZIP:07054-0624
Country:US
Info Phone Num:(USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)
780-471-4036
Chemtrec Ind/Phone:18004249300

Telephone: (USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)

PYRIDINE

CAS: 110-86-1

Fraction By Weight: 100.0%

Reports of Carcinogenicity:NTP:No IARC:No OSHA:No
Medical Cond Aggravated by Exposure:

First Aid: INHALATION: If adverse effects occur, remove to
uncontaminated area. Give artificial respiration if not breathing.
If breathing is difficult, oxygen should be administered by
qualified personnel. Get immediate medical attention. SKIN CONTACT:
Wash skin with soap and water for at least 15 minutes while
removing contaminated clothing and shoes. Get medical attention, if
needed. Thoroughly clean and dry contaminated clothing and shoes
before reuse. EYE CONTACT: Flush eyes with plenty of water for at
least 15 minutes. Then get immediate medical attention. INGESTION:
Contact local poison control center or physician immediately. Never
make an unconscious person vomit or drink fluids. When vomiting
occurs, keep head lower than hips to help prevent aspiration. If
person is unconscious, turn head to side. Get medical attention
immediately. NOTE TO PHYSICIAN: For inhalation, consider oxygen.
For ingestion, consider gastric lavage and activated charcoal
slurry.

Flash Point:68 F (20 C) (CC)
Autoignition Temp:900 F (482 C)
Lower Limits:1.8%
Upper Limits:12.4%
Extinguishing Media:alcohol resistant foam, carbon dioxide, regular dry
chemical, water, alcohol resistant foam Large fires: Use
alcohol-resistant foam or flood with fine water spray.
Fire Fighting Procedures:Move container from fire area if it can be
done without risk. Cool containers with water spray until well
after the fire is out. Stay away from the ends of tanks. For fires
in cargo or storage area: Cool containers with water from unmanned
hose holder or monitor nozzles until well after fire is out. If
this is impossible then take the following precautions: Keep
unnecessary people away, isolate hazard area and deny entry. Let
the fire burn. Withdraw immediately in case of rising sound from
venting safety device or any discoloration of tanks due to fire.
For tank, rail car or tank truck: Evacuation radius: 800 meters
(1/2 mile). Water may be ineffective.
Unusual Fire/Explosion Hazard:Severe fire hazard. Vapor/air mixtures
are explosive above flash point. The vapor is heavier than air.
Vapors or gases may ignite at distant ignition sources and flash
back.

Spill Release Procedures:Avoid heat, flames, sparks and other sources
of ignition. Remove sources of ignition. Stop leak if possible
without personal risk. Reduce vapors with water spray. Small
spills: Absorb with sand or other non-combustible material. Collect
spilled material in appropriate container for disposal. Large
spills: Dike for later disposal. Keep unnecessary people away,
isolate hazard area and deny entry. Stay upwind and keep out of low
areas. Notify Local Emergency Planning Committee and State
Emergency Response Commission for release greater than or equal to
RQ (U.S. SARA Section 304). If release occurs in the U.S. and is
reportable under CERCLA Section 103, notify the National Response
Center at (800)424-8802 (USA) or (202)426-2675 (USA).
Neutralizing Agent:

Handling and Storage Precautions:Store and handle in accordance with
all current regulations and standards. Subject to storage
regulations: U.S. OSHA 29 CFR 1910.106. Grounding and bonding
required. Protect from physical damage. Store outside or in a
detached building. Store with flammable liquids. Keep separated
from incompatible substances. Keep separated from incompatible
substances.
Other Precautions:

Respiratory Protection:The following respirators and maximum use
concentrations are drawn from NIOSH and/or OSHA. 125 ppm Any
supplied-air respirator. Any powered, air-purifying respirator with
organic vapor cartridge(s). 250 ppm Any chemical cartridge
respirator with a full facepiece and organic vapor cartridge(s).
Any air-purifying respirator with a full facepiece and an organic
vapor canister. Any powered, air-purifying respirator with a full
facepiece and organic vapor cartridge(s). Any self-contained
breathing apparatus with a full facepiece. Any supplied-air
respirator with a full facepiece. 1000 ppm Any supplied-air
respirator with a full facepiece that is operated in a
pressure-demand or other positive-pressure mode. Escape - Any
air-purifying respirator with a full facepiece and an organic vapor
canister. Any appropriate escape-type, self-contained breathing
apparatus. For Unknown Concentrations or Immediately Dangerous to
Life or Health - Any supplied-air respirator with full facepiece
and operated in a pressure-demand or other positive-pressure mode
in combination with a separate escape supply. Any self-contained
breathing apparatus with a full facepiece.
Ventilation:Provide local exhaust ventilation system. Ventilation
equipment should be explosion-resistant if explosive concentrations
of material are present. Ensure compliance with applicable exposure
limits.
Protective Gloves:Wear appropriate chemical resistant gloves.
Eye Protection:Wear splash resistant safety goggles with a faceshield.
Provide an emergency eye wash fountain and quick drench shower in
the immediate work area.
Other Protective Equipment:Protective clothing is not required.
Supplemental Safety and Health
PYRIDINE: 5 ppm (15 mg/m3) OSHA TWA 5 ppm ACGIH TWA 5 ppm (15 mg/m3)
NIOSH recommended TWA 10 hour(s)

Boiling Pt:239 F (115 C)
Melt/Freeze Pt:-44 F (-42 C)
Vapor Pres:18 mmHg @ 20 C
Vapor Density:2.7
Spec Gravity:0.9819
pH:8.2 (0.2 M solution)
Evaporation Rate & Reference:Not available
Solubility in Water:soluble
Appearance and Odor:PHYSICAL STATE:liquid ODOR:Not available
Corrosion Rate:

Stability Indicator/Materials to Avoid:Stable at normal temperatures
and pressure.
Stability Condition to Avoid:Avoid heat, flames, sparks and other
sources of ignition. Containers may rupture or explode if exposed
to heat.
Hazardous Decomposition Products:Thermal decomposition products: oxides
of carbon, nitrogen Thermal decomposition products: oxides of
carbon, nitrogen
Conditions to Avoid Polymerization:Will not polymerize.

Waste Disposal Methods:Subject to disposal regulations: U.S. EPA 40 CFR
262. Hazardous Waste Number(s): U196. Hazardous Waste Number(s):
D038. Dispose of in accordance with U.S. EPA 40 CFR 262 for
concentrations at or above the Regulatory level. Regulatory level-
5.0 mg/L. Dispose in accordance with all applicable regulations.

Toxicological Information:PYRIDINE: IRRITATION DATA: 500 mg/24 hour(s)
skin-rabbit mild TOXICITY DATA: 28500 mg/m3/1 hour(s)
inhalation-rat LC50; 1121 mg/kg skin-rabbit LD50; 891 mg/kg
oral-rat LD50 LOCAL EFFECTS: Irritant: skin, eye ACUTE TOXICITY
LEVEL: Moderately Toxic: inhalation, dermal absorption, ingestion
TARGET ORGANS: central nervous system MEDICAL CONDITIONS AGGRAVATED
BY EXPOSURE: central nervous system disorders, kidney disorders,
liver disorders TUMORIGENIC DATA: Available. MUTAGENIC DATA:
Available.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ecological:ECOTOXICITY DATA: FISH TOXICITY: 26000 ug/L 96 hour(s) LC50
(Mortality) Common, mirror, colored, carp (Cyprinus carpio)
INVERTEBRATE TOXICITY: 1430 mg/L 24 hour(s) EC100 (Abundance) Water
flea (Daphnia magna) ALGAL TOXICITY: 280000 ug/L 48 hour(s)
(Population Growth) Green algae (Scenedesmus pannonicus) OTHER
TOXICITY: 10000 ug/L 96 hour(s) (Abnormality) Clawed toad (Xenopus
laevis)

Transport Information:U.S. DOT 49 CFR 172.101: PROPER SHIPPING NAME:
Pyridine ID NUMBER: UN1282 HAZARD CLASS OR DIVISION: 3 PACKING
GROUP: II LABELING REQUIREMENTS: Flammable liquid

SARA Title III Information: SARA TITLE III SECTION 302 EXTREMELY
HAZARDOUS SUBSTANCES (40 CFR 355.30): Not regulated. SARA TITLE
III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.40): Not
regulated. SARA TITLE III SARA SECTIONS 311/312 HAZARDOUS
CATEGORIES (40 CFR 370.21): ACUTE: Yes CHRONIC: No FIRE: Yes
REACTIVE: No SUDDEN RELEASE: No SARA TITLE III SECTION 313 (40
CFR 372.65): PYRIDINE
Federal Regulatory Information:CERCLA SECTIONS 102a/103 HAZARDOUS
SUBSTANCES (40 CFR 302.4): PYRIDINE: 1000LBSRQ OSHA PROCESS SAFETY
(29CFR1910.119): Not regulated.
State Regulatory Information: California Proposition 65: Not regulated.