**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 10026-04-7 |Silicon tetrachloride | >99.5 | 233-054-0 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XI
Risk Phrases: 14 36/37/38
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Reacts violently with water. Irritating to eyes, respiratory system
and skin.Water-reactive.
Potential Health Effects
Eye:
Causes severe eye irritation and possible burns.
Skin:
Contact with skin causes irritation and possible burns, especially
if the skin is wet or moist. May be harmful if absorbed through the
skin.
Ingestion:
May cause severe gastrointestinal tract irritation with nausea,
vomiting and possible burns. May cause corrosion and permanent
tissue destruction of the esophagus and digestive tract. May be
harmful if swallowed.
Inhalation:
Causes respiratory tract irritation. Inhalation may be fatal as a
result of spasm, inflammation, edema of the larynx and bronchi,
chemical pneumonitis and pulmonary edema. May cause central nervous
system effects.
Chronic:
No information found.
**** 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.
Skin:
Get medical aid. Immediately flush skin with plenty of water for at
least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse.
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.
Inhalation:
Remove from exposure and move to fresh air immediately. If not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
**** 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. Water Reactive. Material will react with water and
may release a flammable and/or toxic gas. Substance is
noncombustible. Vapors may be heavier than air. They can spread
along the ground and collect in low or confined areas. Contact with
water forms corrosive vapors.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
DO NOT USE 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. Avoid runoff into storm sewers and
ditches which lead to waterways. Clean up spills immediately,
observing precautions in the Protective Equipment section. Provide
ventilation. Do not expose spill to water.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Keep container tightly closed. Do not get on skin or in eyes. Avoid
ingestion and inhalation. Do not ingest or inhale. Do not allow
contact with water. Use only in a chemical fume hood. Wash clothing
before reuse.
Storage:
Store in a cool, dry place. Store in a tightly closed container.
Keep under a nitrogen blanket.
**** 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# 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 chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear a chemical apron.
Respirators:
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: Clear liquid
Color: colorless
Odor: suffocating odor - stench
pH: Not available.
Vapor Pressure: 259 mbar @ 20 deg C
Viscosity: Not available.
Boiling Point: 58 deg C @ 760mmHg
Freezing/Melting Point: -70 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: reacts (forming silicic acid and HCl)
Specific Gravity/Density: 1.480
Molecular Formula: Cl4Si
Molecular Weight: 169.9
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures. Reacts with water to
form Silicic acid and Hydrogen chloride, a toxic and corrosive gas.
Generally chlorosilanes are considered non-corrosive in their
natural, dry state, but become corrosive when in contact with water
or moisture.
Conditions to Avoid:
High temperatures, incompatible materials, exposure to moist air or
water.
Incompatibilities with Other Materials:
Metals, strong oxidizing agents, strong acids, strong bases,
alcohols, amines, ammonia, dimethyl sulfoxide, glass, potassium,
dimethyl formamide, sodium, aldehydes (e.g. acetaldehyde, acrolein,
chloral, formaldehyde), esters (e.g. butyl acetate, ethyl acetate,
propyl formate), ketones (e.g. acetone, acetophenone, MEK, MIBK).
Hazardous Decomposition Products:
Hydrogen chloride, carbon monoxide, carbon dioxide, oxides of
silicon.
Hazardous Polymerization: Will not occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 10026-04-7: VW0525000
LD50/LC50:
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:
Silicon tetrachloride -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Other
No information available.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: SILICON TETRACHLORIDE
Hazard Class: 8
UN Number: 1818
Packing Group: II
IMO
Shipping Name: SILICON TETRACHLORIDE
Hazard Class: 8
UN Number: 1818
Packing Group: II
RID/ADR
Shipping Name: SILICON TETRACHLORIDE
Hazard Class: 8
UN Number: 1818
Packing group: II
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI
Risk Phrases:
R 14 Reacts violently with water.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 7/8 Keep container tightly closed and dry.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
WGK (Water Danger/Protection)
CAS# 10026-04-7: 1
Canada
CAS# 10026-04-7 is listed on Canada's DSL List.
CAS# 10026-04-7 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 10026-04-7 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 12/12/1997 Revision #5 Date: 1/14/2005
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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