**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 75-77-4 |Chlorotrimethylsilane | 42.5 | 200-900-5 |
|----------------|--------------------------------------|----------|-----------|
| 10026-04-7 |Silicon tetrachloride | 57.5 | 233-054-0 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: F C
Risk Phrases: 11 14 34
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Highly flammable. Reacts violently with water. Causes
burns.Corrosive.Water-reactive.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns. May be harmful if absorbed through the skin.
Ingestion:
Causes gastrointestinal tract burns.
Inhalation:
May cause irritation of the respiratory tract with burning pain in
the nose and throat, coughing, wheezing, shortness of breath and
pulmonary edema. Inhalation may be fatal as a result of spasm,
inflammation, edema of the larynx and bronchi, chemical pneumonitis
and pulmonary edema. Vapors may cause dizziness or suffocation.
Chronic:
Prolonged or repeated skin contact may cause dermatitis.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes. Wash clothing before reuse. Destroy contaminated shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen.
Notes to Physician:
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Vapors can travel to a source of ignition and flash
back. Water Reactive. Material will react with water and may release
a flammable and/or toxic gas. Use water spray to keep fire-exposed
containers cool. Extremely flammable liquid and vapor. Containers may
explode in the heat of a fire.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or
alcohol-resistant foam. For large fires, use water spray, fog, or
alcohol-resistant foam. Use water spray to cool fire-exposed
containers. Water may be ineffective. Do NOT use straight streams of
water.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Remove all sources of ignition.
Use a spark-proof tool. Do not expose spill to water. A vapor
suppressing foam may be used to reduce vapors.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Ground and bond containers when
transferring material. Use spark-proof tools and explosion proof
equipment. Do not breathe dust, vapor, mist, or gas. Empty containers
retain product residue, (liquid and/or vapor), and can be dangerous.
Keep container tightly closed. Keep away from heat, sparks and
flame. Do not allow contact with water. Use only in a chemical fume
hood. Do not pressurize, cut, weld, braze, solder, drill, grind, or
expose empty containers to heat, sparks or open flames.
Storage:
Keep away from sources of ignition. Store in a tightly closed
container. Keep under a nitrogen blanket. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep away
from water. Flammables-area.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate
ventilation to keep airborne concentrations low.
Exposure Limits
CAS# 75-77-4:
CAS# 10026-04-7:
United Kingdom, WEL - TWA: (listed as silica, amorphous): 6 mg/m3
(inhalable dust); 2.4 mg/m3 TWA (respirable dust)
United Kingdom, WEL - STEL: (listed as silica, amorphous): 18 mg/
STEL (inhalable dust); 7.2 mg/m3 STEL (respirable dust)
Russia: (listed as silica, amorphous): 1 mg/m3 TWA
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A NIOSH/MSHA approved air purifying dust or mist
respirator or European Standard EN 149. Follow the
OSHA respirator regulations found in 29 CFR 1910.134
or European Standard EN 149. Use a NIOSH/MSHA or
European Standard EN 149 approved respirator if
exposure limits are exceeded or if irritation or other
symptoms are experienced.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Color: clear to white
Odor: none reported
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 57 deg C
Freezing/Melting Point: -40 deg C
Autoignition Temperature: 420 deg C ( 788.00 deg F)
Flash Point: -18 deg C ( -0.40 deg F)
Explosion Limits, lower: 1.80 vol %
Explosion Limits, upper: N/A
Decomposition Temperature:
Solubility in water: reacts with water
Specific Gravity/Density: 0.856g/cm3
Molecular Formula: Mixture
Molecular Weight: 0
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Incompatible materials, ignition sources, dust generation, excess
heat, exposure to moist air or water.
Incompatibilities with Other Materials:
Oxidizing agents
Hazardous Decomposition Products:
Hydrogen chloride, carbon monoxide, carbon dioxide, silicon dioxide,
phosgene gas.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 75-77-4: VV2710000
CAS# 10026-04-7: VW0525000
LD50/LC50:
CAS# 75-77-4: Draize test, rabbit, eye: 5 uL Moderate; Draize test,
rabbit, skin: 500 uL Moderate; Oral, rat: LD50 = 5660 uL/kg; Skin,
rabbit: LD50 = 1780 uL/kg.
CAS# 10026-04-7: Draize test, rabbit, eye: 20 mg/24H Moderate;
Draize test, rabbit, skin: 500 mg/24H Severe; Inhalation, rat: LC50 =
8000 ppm/4H.
Carcinogenicity:
Chlorotrimethylsilane -
Not listed by ACGIH, IARC, or NTP.
Silicon tetrachloride -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Water danger/protection: WGK 1
CAS# 75-77-4: Salmonella typhimurium
TA97, TA98, TA100, TA1535, TA1537 without metabolic activation
positive.
Aquatic toxicity Tlm 96: 100-10 ppm.
Do not allow the
product to reach the effluent drain. Do not introduce signifiant
amounts into sewerage. Prevent any contamination under ground water.
Hydrolyses to hexamethyldisiloxane.
CAS# 10026-04-7:
Toxic for
aquatic organisms: LD50 1000-100 mg/l/96hr
Reaction forms
Hydrochloric acid: 25 mg/l is lethal to fish.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: FLAMMABLE LIQUID, CORROSIVE, N.O.S.*
Hazard Class: 3 (8)
UN Number: 2924
Packing Group: II
IMO
Shipping Name: FLAMMABLE LIQUID, CORROSIVE, N.O.S.
Hazard Class: 3.1 (8)
UN Number: 2924
Packing Group: II
RID/ADR
Shipping Name: FLAMMABLE LIQUID, CORROSIVE, N.O.S.
Hazard Class: 3
UN Number: 2924
Packing group: II
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: F C
Risk Phrases:
R 11 Highly flammable.
R 14 Reacts violently with water.
R 34 Causes burns.
Safety Phrases:
S 16 Keep away from sources of ignition - No
smoking.
S 25 Avoid contact with eyes.
S 30 Never add water to this product.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 75-77-4: 1
CAS# 10026-04-7: 1
Canada
CAS# 75-77-4 is listed on Canada's DSL List.
CAS# 10026-04-7 is listed on Canada's DSL List.
CAS# 75-77-4 is not listed on Canada's Ingredient Disclosure List.
CAS# 10026-04-7 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 75-77-4 is listed on the TSCA inventory.
CAS# 10026-04-7 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
Text for R-phrases from Section 2
R 11 Highly flammable.
R 14 Reacts violently with water.
R 21 Harmful in contact with skin.
R 34 Causes burns.
R 36/37/38 Irritating to eyes, respiratory system and
skin.
MSDS Creation Date: 1/20/1998 Revision #2 Date: 9/30/2002
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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