MATHESON TRI-GAS, INC. -- SILICON TETRAFLUORIDE -- - 
=====================  Product Identification  =====================

Product ID:SILICON TETRAFLUORIDE
MSDS Date:Jan 24 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:SILICON TETRAFLUORIDE
CAS:7783-61-1
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: burns
    LONG TERM EXPOSURE: same as effects reported in short term exposure
    SKIN CONTACT: SHORT TERM EXPOSURE: burns LONG TERM EXPOSURE: same
    as effects reported in short term exposure EYE CONTACT: SHORT TERM
    EXPOSURE: burns LONG TERM EXPOSURE: same as effects reported in
    short term exposure INGESTION: SHORT TERM EXPOSURE: burns LONG TERM
    EXPOSURE: same as effects reported in short term exposure
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.
    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 immediate medical
    attention. Thoroughly clean and dry contaminated clothing and shoes
    before reuse. Destroy contaminated shoes. EYE CONTACT: Immediately
    flush eyes with plenty of water for at least 15 minutes. Then get
    immediate medical attention. INGESTION: If swallowed, drink plenty
    of water, do NOT induce vomiting. Get immediate medical attention.
    NOTE TO PHYSICIAN: For inhalation, consider oxygen. For skin
    contact, consider ice water bath, iced alcohol, iced magnesium
    sulfate, magnesium oxide/glycerin gels, calcium gluconate gel or
    benzalkonium chloride solution.  Avoid gastric lavage or emesis.

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

Flash Point:not flammable
Extinguishing Media:carbon dioxide, regular dry chemical Large fires:
    Use regular 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. Use
    extinguishing agents appropriate for surrounding fire. Flood with
    fine water spray. Avoid inhalation of material or combustion
    by-products. Stay upwind and keep out of low areas.
Unusual Fire/Explosion Hazard:Negligible fire hazard. Pressurized
    containers may rupture or explode if exposed to sufficient heat.

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

Spill Release Procedures:Do not touch spilled material. 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.
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 1910.101. Store below 52 C. Store in
    a cool, dry place. Store in a well-ventilated area. Keep separated
    from incompatible substances.
Other Precautions:

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

Respiratory Protection:The following respirators and maximum use
    concentrations are drawn from NIOSH and/or OSHA. Measurement
    Element: F 12.5 mg/m3 Any dust and mist respirator. 25 mg/m3 Any
    dust and mist respirator. Any supplied-air respirator. 62.5 mg/m3
    Any supplied-air respirator. Any powered, air-purifying respirator
    with a dust and mist filter. May need acid gas sorbent. 125 mg/m3
    Any air-purifying respirator with a full facepiece and a
    high-efficiency particulate filter. May need acid gas sorbent. Any
    self-contained breathing apparatus with a full facepiece. Any
    supplied-air respirator with a full facepiece. 250 mg/m3 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 a
    high-efficiency particulate filter. May need acid gas sorbent. 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 or process enclosure ventilation
    system. 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:Wear appropriate chemical resistant
    clothing.
Supplemental Safety and Health
 SILICON TETRAFLUORIDE: 2.5 mg(F)/m3 OSHA TWA 2.5 mg(F)/m3 ACGIH TWA
    2.5 mg(F)/m3 NIOSH recommended TWA 10 hour(s)

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

Boiling Pt:-123 F (-86 C)
Melt/Freeze Pt:-130 F (-90 C)
Vapor Pres:Not available
Vapor Density:3.63
Spec Gravity:1.7 @ -95 C
pH:acidic in solution
Evaporation Rate & Reference:Not applicable
Solubility in Water:decomposes
Appearance and Odor:PHYSICAL STATE:gas COLOR:colorless ODOR:irritating
    odor, pungent odor
Corrosion Rate:

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

Stability Indicator/Materials to Avoid:Reacts violently with water,
    releasing toxic gases. Releases corrosive gases.
Stability Condition to Avoid:Avoid heat, flames, sparks and other
    sources of ignition. May ignite or explode on contact with
    combustible materials.
Hazardous Decomposition Products:Thermal decomposition products or
    contact with water or moisture: acids, hydrogen fluoride Thermal
    decomposition products or contact with water or moisture: acids,
    hydrogen fluoride
Conditions to Avoid Polymerization:Will not polymerize.

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

Toxicological Information:SILICON TETRAFLUORIDE: TOXICITY DATA: 2272
    ppm inhalation-rat LC50 LOCAL EFFECTS: Corrosive: inhalation, skin,
    eye, ingestion ACUTE TOXICITY LEVEL: Moderately Toxic: inhalation
    MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE: central nervous system
    disorders, bone, joint or tooth disorders, eye disorders, kidney
    disorders, respiratory disorders, skin disorders and allergies
    ADDITIONAL DATA: May cross the placenta. May be excreted in breast
    milk.

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

Ecological:Not available

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

Waste Disposal Methods:Dispose in accordance with all applicable
    regulations.

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

Transport Information:U.S. DOT 49 CFR 172.101: PROPER SHIPPING NAME:
    Silicon tetrafluoride, compressed ID NUMBER: UN1859 HAZARD CLASS OR
    DIVISION: 2.3 LABELING REQUIREMENTS: Poison gas; Corrosive QUANTITY
    LIMITATIONS: PASSENGER AIRCRAFT OR RAILCAR: Forbidden CARGO
    AIRCRAFT ONLY: Forbidden

=====================  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: Yes  FIRE: No 
    REACTIVE: Yes  SUDDEN RELEASE: Yes	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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