MATHESON TRI-GAS, INC. -- TRIETHYL PHOSPHITE -- - 
=====================  Product Identification  =====================

Product ID:TRIETHYL PHOSPHITE
MSDS Date:Feb 01 1989
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
=== Contractor Identification ===
Company Name:MATHESON TRI-GAS, INC.
Address:959 ROUTE 46 EAST
Box:City:PARSIPPANY
State:NJ
ZIP:07054-0624
Country:US
Phone:(USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)
    780-471-4036
CAGE:Company Name:MATHESON TRI-GAS, INC.
Address:530 WATSON STREET
Box:City:WHITBY
State:ZIP:L1N 5R9
Country:ONTARIO, CANADA
Phone:(USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)
    780-471-4036
CAGE:


=============  Composition/Information on Ingredients  =============

Ingred Name:TRIETHYL PHOSPHITE
CAS:122-52-1
Fraction by Wt: 100.0%

=====================  Hazards Identification  =====================

Reports of Carcinogenicity:NTP:No    IARC:No	OSHA:No
Health Hazards Acute and Chronic:INHALATION: SHORT TERM EXPOSURE:
    irritation LONG TERM EXPOSURE: no information is available SKIN
    CONTACT: SHORT TERM EXPOSURE: irritation LONG TERM EXPOSURE: no
    information is available EYE CONTACT: SHORT TERM EXPOSURE:
    irritation LONG TERM EXPOSURE: same as effects reported in short
    term exposure INGESTION: SHORT TERM EXPOSURE: no information is
    available LONG TERM EXPOSURE: no information is available
Medical Cond Aggravated by Exposure:

=======================  First Aid Measures  =======================

First Aid: INHALATION: If adverse effects occur, remove to
    uncontaminated area. Give artificial respiration if not breathing.
    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: If a large amount
    is swallowed, get medical attention.


=====================  Fire Fighting Measures  =====================

Flash Point:129 F (54 C) (CC)
Extinguishing Media:alcohol resistant foam, carbon dioxide, regular dry
    chemical, water 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). Do not attempt to extinguish fire unless flow of
    material can be stopped first. Flood with fine water spray. Do not
    scatter spilled material with high-pressure water streams. Cool
    containers with water spray until well after the fire is out. Apply
    water from a protected location or from a safe distance. Avoid
    inhalation of material ocombustion by-products. Stay upwind and
    keep out of low areas.
Unusual Fire/Explosion Hazard:Moderate fire hazard. Vapor/air mixtures
    are explosive above flash point.

==================  Accidental Release Measures  ==================

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.
Neutralizing Agent:

======================	Handling and Storage  ======================

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. Keep separated from incompatible substances.
Other Precautions:

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:Under conditions of frequent use or heavy
    exposure, respiratory protection may be needed. Respiratory
    protection is ranked in order from minimum to maximum. Consider
    warning properties before use. Any chemical cartridge respirator
    with organic vapor cartridge(s). 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. 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. Ensure compliance
    with applicable exposure limits.
Protective Gloves:Wear appropriate chemical resistant gloves.
Eye Protection:Wear splash resistant safety goggles. Provide an
    emergency eye wash fountain and quick drench shower in the
    immediate work area.
Other Protective Equipment:Wear appropriate chemical resistant
    clothing.
Supplemental Safety and Health
 TRIETHYL PHOSPHITE: No occupational exposure limits established.

==================  Physical/Chemical Properties  ==================

Boiling Pt:311-318 F (155-159 C)
Melt/Freeze Pt:Not available
Vapor Pres:Not available
Vapor Density:Not available
Spec Gravity:0.969
pH:Not available
Evaporation Rate & Reference:Not available
Solubility in Water:reacts
Appearance and Odor:PHYSICAL STATE:liquid APPEARANCE:ANCE:
    moisture-sensitive COLOR:colorless ODOR:Not available
Corrosion Rate:

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:May react with evolution of heat
    on contact with water.
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 phosphorus, carbon Thermal decomposition products: oxides of
    phosphorus, carbon
Conditions to Avoid Polymerization:Will not polymerize.

===================  Toxicological Information	===================

Toxicological Information:TRIETHYL PHOSPHITE: IRRITATION DATA: 500 mg
    skin-rabbit mild; 100 mg eyes-rabbit moderate; 500 mg skin-mammal
    mild; 100 mg eyes-mammal mild TOXICITY DATA: 11063 mg/m3/6 hour(s)
    inhalation-rat LC50; 2800 mg/kg skin-rabbit LD50; 1840 mg/kg
    oral-rat LD50 LOCAL EFFECTS: Irritant: eye ACUTE TOXICITY LEVEL:
    Moderately Toxic: inhalation, ingestion Slightly Toxic: dermal
    absorption

=====================  Ecological Information  =====================

Ecological:Not available

====================  Disposal Considerations  ====================

Waste Disposal Methods:Dispose in accordance with all applicable
    regulations. Subject to disposal regulations: U.S. EPA 40 CFR 262.
    Hazardous Waste Number(s): D001. D003.

===================  MSDS Transport Information  ===================

Transport Information:U.S. DOT 49 CFR 172.101: PROPER SHIPPING NAME:
    Triethyl phosphite ID NUMBER: UN2323 HAZARD CLASS OR DIVISION: 3
    PACKING GROUP: III LABELING REQUIREMENTS: Flammable liquid

=====================  Regulatory Information  =====================

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: Yes  SUDDEN RELEASE: No  SARA TITLE III SECTION 313 (40
    CFR 372.65): Not regulated.
Federal Regulatory Information:CERCLA SECTIONS 102a/103 HAZARDOUS
    SUBSTANCES (40 CFR 302.4): Not regulated. OSHA PROCESS SAFETY
    (29CFR1910.119): Not regulated.
State Regulatory Information: California Proposition 65: Not regulated.

=======================  Other Information  =======================

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 of Defense.  The United States of America in no manner whatsoever,
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 disclaims all liability for its use.  Any person utilizing this
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