EMS CATALOG NO: 21760
EMS PRODUCT: TMS
(TETRAMETHYLSILANE)
DATE: January 4, 2000
PAGE NUMBER: One of 7
MATERIAL SAFETY DATA SHEET
The information contained herein is based on data considered
accurate. However, no warranty is expressed or implied
regarding the accuracy of these data or the results to be
obtained from the use thereof.
Electron Microscopy Sciences assumes no responsibility for
personal injury or property damage to vendees, users or
third parties caused by the material. Such vendees or users
assume all risks associated with the use of the material.
ELECTRON MICROSCOPY SCIENCES
321 MORRIS ROAD
P.O. BOX 251
24 HOUR EMERGENCY PHONE
FORT WASHINGTON, PA 19034
NUMBER
(215) 646-1566 CHEMTREC: (800) 424-9300
_________________________________________________________________
FOR PRODUCT AND SALES INFORMATION
_________________________________________________________________
CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.
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PRODUCT IDENTIFICATION
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COMMON NAME: Tetramethylsilane
COMMERCIAL NAME(S): Not available.
SYNONYM: Not available.
CHEMICAL NAME:
CHEMICAL FAMILY: Not available.
CHEMICAL FORMULA: C4H12Si
CAS#: 75-76-3
RTECS: VV5705400
TSCA: TSCA 8(b) INVENTORY: Tetramethylsilane
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CI#: Not available.
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COMPOSITION AND INFORMATION ON INGREDIENTS
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NAME: Tetramethylsilane
CAS#: 75-76-3
% BY WEIGHT: 100
TOXICOLOGICAL DATA ON INGREDIENTS:
(LD50): Not available.
(LC50): Not available.
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HAZARDS IDENTIFICATION
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POTENTIAL ACUTE HEALTH EFFECTS:
Very hazardous in case of eye contact (irritant), of
inhalation. Inflammation of the eye is characterized by
redness, watering, and itching.
POTENTIAL CHRONIC HEALTH EFFECTS:
Very hazardous in case of eye contact (irritant), of
inhalation.
CARCINOGENIC EFFECTS: Not available.
MUTAGENIC EFFECTS: Not available.
TERATOGENIC EFFECTS: Not available.
DEVELOPMENTAL TOXICITY: Not available.
The substance is toxic to lungs, mucous membranes. Repeated
or prolonged exposure to the substance can produce target
organs damage.
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FIRST AID MEASURES
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EYE CONTACT:
Check for and remove any contact lenses. Do not use an eye
ointment. Seek medical attention.
SKIN CONTACT:
No known effect on skin, rinse with water for a few minutes.
SERIOUS SKIN CONTACT: Not available.
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INHALATION:
Allow the victim to rest in a well ventilated area. Seek
immediate medical attention.
SERIOUS INHALATION:
Evacuate the victim to a safe area as soon as possible.
Loosen tight clothing such as a collar, tie, belt or
waistband. If breathing is difficult, administer oxygen. If
the victim is not breathing, perform mouth-to-mouth
resuscitation. Seek medical attention.
INGESTION:
Do not induce vomiting. Loosen tight clothing such as a
collar, tie, belt or waistband. If the victim is not
breathing, perform mouth-to-mouth resuscitation. Seek
immediate medical attention.
SERIOUS INGESTION: Not available.
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FIRE AND EXPLOSION DATA
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FLAMMABILITY OF THE PRODUCT: Flammable.
AUTO-IGNITION TEMPERATURE: Not available.
FLASH POINTS: CLOSED CUP: -27oC (-16.6oF)
FLAMMABLE LIMITS: Lower: 1.5%
PRODUCTS OF COMBUSTION: These products are carbon oxides (CO, CO2)
FIRE HAZARDS IN PRESENCE OF VARIOUS SUBSTANCES: Flammable in
presence of open flames and sparks.
EXPLOSION HAZARDS IN PRESENCE OF VARIOUS SUBSTANCES:
RISKS OF EXPLOSION OF THE PRODUCT IN PRESENCE OF
MECHANICAL
IMPACT: Not available.
RISKS OF EXPLOSION OF THE PRODUCT IN PRESENCE OF STATIC
DISCHARGE: Not available.
FIRE FIGHTING MEDIA AND INSTRUCTIONS: Flammable liquid, insoluble
in water.
SMALL FIRE: Use DRY chemical powder.
LARGE FIRE: Use water spray or fog. Cool containing vessels
with water jet in order to prevent pressure
build-up, auto ignition or explosion.
SPECIAL REMARKS ON FIRE HAZARDS: Catches fire if exposed to air.
SPECIAL REMARKS ON EXPLOSION HAZARDS: Not available.
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ACCIDENTAL RELEASE MEASURES
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SMALL SPILL:
Absorb with an inert material and put the spilled material
in an appropriate waste disposal.
LARGE SPILL:
Flammable liquid, insoluble in water.
Keep away from heat. Keep away from sources of ignition.
Stop leak if without risk. Absorb with DRY earth, sand or
other non-combustible material. Do not get water inside
container. Do not touch spilled material. Prevent entry
into sewers, basements or confined areas; dike if needed.
Eliminate all ignition sources. Call for assistance on
disposal.
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HANDLING AND STORAGE
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PRECAUTIONS:
Keep away from heat. Keep away from sources of ignition.
Ground all equipment containing material. Do not breathe
gas/fumes/vapor/spay. Avoid contact with eyes. In case of
insufficient ventilation, wear suitable respiratory
equipment. If you feel unwell, seek medical attention and
show the label when possible.
STORAGE:
Flammable materials should be stored in a separate safety
cabinet or room. Keep in a cool, well-ventilated place.
Ground all equipment containing material. A refrigerated
room would be preferable for materials with a flash point
lower than 37.8oC (100oF)
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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ENGINEERING CONTROLS:
Provide exhaust ventilation or other engineering controls to
keep the airborne concentrations of vapors below their
respective threshold limit value. Ensure that eyewash
stations and safety showers are proximal to the work-station
location.
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PERSONAL PROTECTION:
Splash goggles. Lab coat. Vapor respirator. Be sure to
use an approved/certified respirator or equivalent.
PERSONAL PROTECTION IN CASE OF A LARGE SPILL:
Splash goggles. Full suit. Vapor respirator. Boots.
Gloves. A self contained breathing apparatus should be used
to avoid inhalation of the product. Suggested protective
clothing might not be sufficient; consult a specialist
BEFORE handling this product.
EXPOSURE LIMITS: Not available.
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PHYSICAL AND CHEMICAL PROPERTIES
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PHYSICAL STATE AND APPEARANCE: Liquid.
ODOR: Not available.
TASTE: Not available.
COLOR: Colorless.
MOLECULAR WEIGHT: 88.22 g/mole.
pH (1% SOLN/WATER): Not applicable.
BOILING POINT: 26.5oC (79.7oF)
MELTING POINT: -99oC )(-146.2oF)
CRITICAL TEMPERATURE: Not available.
SPECIFIC GRAVITY: 0.65 (Water=1)
VAPOR PRESSURE: Not available.
VAPOR DENSITY: Not available.
VOLATILITY: Not available.
ODOR THRESHOLD: Not available.
WATER/OIL DIST. COEFF.: Not available.
IONICITY (IN WATER): Not available.
DISPERSION PROPERTIES: See solubility in water, methanol, diethyl
ether.
SOLUBILITY: Soluble in methanol, diethyl ether. Insoluble in
cold water.
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STABILITY AND REACTIVITY DATA
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STABILITY: The product is stable.
INSTABILITY TEMPERATURE: Not available.
CONDITIONS OF INSTABILITY: Not available.
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INCOMPATIBILITY WITH VARIOUS SUBSTANCES: Not available.
CORROSIVITY: Non-corrosive in presence of glass.
SPECIAL REMARKS ON REACTIVITY: Not available.
SPECIAL REMARKS ON CORROSIVITY: Not available.
POLYMERIZATION: No.
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TOXICOLOGICAL INFORMATION
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ROUTES OF ENTRY: Eye contact. Inhalation.
TOXICITY TO ANIMALS:
LD50: Not available.
LC50: Not available.
CHRONIC EFFECTS ON HUMANS: The substance is toxic to lungs,
mucous membranes.
OTHER TOXIC EFFECTS ON HUMANS: Very hazardous in case of
inhalation.
SPECIAL REMARKS ON TOXICITY TO ANIMALS: Not available.
SPECIAL REMARKS ON CHRONIC EFFECTS ON HUMANS: Not available.
SPECIAL REMARKS ON OTHER TOXIC EFFECTS ON HUMANS: Not available.
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ECOLOGICAL INFORMATION
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ECOTOXICITY: Not available.
BOD5 AND COD: Not available.
PRODUCTS OF BIODEGRADATION: Possibly hazardous short term
degradation products are not likely. However, long term
degredation products may arise.
TOXICITY OF THE PRODUCTS OF BIODEGRADATION: The products of
degradation are more toxic.
SPECIAL REMARKS ON THE PRODUCTS OF BIODEGRADATION: Not available.
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DISPOSAL CONSIDERATIONS
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WASTE DISPOSAL: Recycle to process, if possible. Consult your
local or regional authorities.
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TRANSPORT INFORMATION
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DOT CLASSIFICATION: Class 3: Flammable liquid.
IDENTIFICATION: Tetramethylsilane UN2749 PG:I
SPECIAL PROVISIONS FOR TRANSPORT: Not available.
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OTHER REGULATORY INFORMATION
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FEDERAL AND STATE REGULATIONS:
TSCA 8(b) INVENTORY: Tetramethylsilane
OTHER REGULATIONS:
OSHA: Hazardous by definition of Hazard Communication
Standard (29 CFR 1910.1200)
OTHER CLASSIFICATIONS:
WHMIS (CANADA): CLASS B-2: Flammable liquid with a flash
point lower than 37.8oC (100oF).
CLASS D-2A: Material causing other toxic
effects (VERY TOXIC).
DSCLA (EEC): R12-Extremely flammable.
R41-Risk of serious damage to eyes.
HMIS (U.S.A.):
HEALTH HAZARD: 2
FIRE HAZARD: 4
REACTIVITY: 0
PERSONAL PROTECTION: j
NATIONAL FIRE PROTECTION ASSOCIATION (U.S.A.)
HEALTH: 2
FLAMMABILITY: 4
REACTIVITY: 0
SPECIFIC HAZARD:
PROTECTIVE EQUIPMENT:
Not applicable
Lab coat.
Vapor respirator. Be sure to use an approved/certified
respirator or equivalent. Wear appropriate respirator
when ventilation is inadequate.
Splash goggles.
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