Section 2 - Composition, Information on Ingredients

CAS#	Chemical Name	Percent	EINECS/ELINCS
75-77-4	Chlorotrimethylsilane	98	200-900-5

Section 3 - Hazards Identification

Appearance: colorless clear liquid. Flash Point: -28 deg C.
Danger! Flammable liquid and vapor. Reacts violently with water. Contact with water liberates toxic gas. Causes burns by all exposure routes. Harmful if absorbed through skin or if inhaled.
Target Organs: Respiratory system, gastrointestinal system, eyes, skin, mucous membranes.


Potential Health Effects
Eye: Causes severe eye burns.
Skin: Harmful if absorbed through the skin. Causes severe burns.
Ingestion: May be harmful if swallowed. Causes severe digestive tract burns.
Inhalation: Harmful if inhaled. Causes chemical burns to the respiratory tract.
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 imme diately.
Skin: Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: Do not induce vomiting. Get medical aid immediately. Call a poison control center.
Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. Do not use mouth-to-mouth resuscitation if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
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. Vapors may form an explosive mixture with air. Vapors can travel to a source of ignition and flash back. Will burn if involved in a fire. Water reactive. Material will react with water and may release a flammable and/or toxic gas. Containers may explode in the heat of a fire. Flammable liquid and vapor.
Extinguishing Media: Use carbon dioxide or dry chemical. DO NOT USE WATER OR FOAM.
Flash Point: -28 deg C ( -18.40 deg F)
Autoignition Temperature: 395 deg C ( 743.00 deg F)
Explosion Limits, Lower:1.2 vol %
Upper: 46 vol %
NFPA Rating: (estimated) Health: 3; Flammability: 3; Instability: 2; Special Hazard: -W-

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. Wear a self contained breathing apparatus and appropriate personal protection. (See Exposure Controls, Personal Protection section). Remove all sources of ignition. Use a spark-proof tool. Do not expose spill to water. Do not get water inside containers. Do not let this chemical enter the environment.

Section 7 - Handling and Storage

Handling: Do not allow water to get into the container because of violent reaction. Use spark-proof tools and explosion proof equipment. Do not get in eyes, on skin, or on clothing. Keep away from heat, sparks and flame. Do not ingest or inhale. Do not allow contact with water. Use only in a chemical fume hood.
Storage: Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area. Store under nitrogen.

Section 8 - Exposure Controls, Personal Protection

Engineering Controls: Use explosion-proof ventilation equipment. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use only under a chemical fume hood.
Exposure Limits

Chemical Name	ACGIH	NIOSH	OSHA - Final PELs
Chlorotrimethylsilane	none listed	none listed	none listed

OSHA Vacated PELs: Chlorotrimethylsilane: No OSHA Vacated PELs are listed for this chemical.
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: 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
Appearance: colorless
Odor: characteristic odor
pH: Not available.
Vapor Pressure: 253 mbar @ 20 deg C
Vapor Density: 3.75 (air=1)
Evaporation Rate:Not available.
Viscosity: 0.34 mPa @ 25 deg C
Boiling Point: 57 deg C @ 760 mm Hg
Freezing/Melting Point:-58 deg C
Decomposition Temperature:Not available.
Solubility: reacts
Specific Gravity/Density:0.850
Molecular Formula:C3H9ClSi
Molecular Weight:108.64

Section 10 - Stability and Reactivity

Chemical Stability: Reacts violently with water.
Conditions to Avoid: Incompatible materials, ignition sources, excess heat, exposure to moist air or water.
Incompatibilities with Other Materials: Strong oxidizing agents, strong acids, strong bases, alcohols, amines, aldehydes (e.g. acetaldehyde, acrolein, chloral, formaldehyde), esters (e.g. butyl acetate, ethyl acetate, propyl formate), ketones (e.g. acetone, acetophenone, MEK, MIBK), acetone, hexafluoroisopropylideneamino lithium.
Hazardous Decomposition Products: Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide, silicon dioxide, formaldehyde.
Hazardous Polymerization: Will not occur.

Section 11 - Toxicological Information

RTECS#:      
CAS# 75-77-4: VV2710000
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;
.

Carcinogenicity:
CAS# 75-77-4: Not listed by ACGIH, IARC, NTP, or CA Prop 65.

Epidemiology: Tumorigenic effects have been reported in experimental animals.
Teratogenicity: No information found
Reproductive Effects: No information found
Mutagenicity: Mutation in bacteria.
Neurotoxicity: No information found
Other Studies:

Section 12 - Ecological Information

Ecotoxicity: No data available. Water danger/protection: WGK 1Salmonella 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.
Environmental: No information available.
Physical: No information available.
Other: Do not empty into drains.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

	US DOT	Canada TDG
Shipping Name:	TRIMETHYLCHLOROSILANE	TRIMETHYLCHLOROSILANE
Hazard Class:	3	3(8)
UN Number:	UN1298	UN1298
Packing Group:	II	II
Additional Info:		FLASHPOINT -18 C

Section 15 - Regulatory Information

US FEDERAL

TSCA
     CAS# 75-77-4 is listed on the TSCA inventory.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
     CAS# 75-77-4: 1000 lb TPQ
SARA Codes
     CAS # 75-77-4: immediate, fire, reactive.
Section 313      No chemicals are reportable under Section 313.
Clean Air Act:
     This material does not contain any hazardous air pollutants.
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
     None of the chemicals in this product are listed as Hazardous Substances under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA.
     None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
OSHA:
     None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
     CAS# 75-77-4 can be found on the following state right to know lists: New Jersey, Pennsylvania, Massachusetts.

California Prop 65

California No Significant Risk Level: None of the chemicals in this product are listed.

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 20/21 Harmful by inhalation and in contact with skin.
     R 29 Contact with water liberates toxic gas.
     R 35 Causes severe burns.

Safety Phrases:
     S 16 Keep away from sources of ignition - No smoking.
     S 26 In case of contact with eyes, rinse immediately with plenty of
     water and seek medical advice.
     S 36/37/39 Wear suitable protective clothing, gloves and eye/face pr
     otection.
     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
Canada - DSL/NDSL
     CAS# 75-77-4 is listed on Canada's DSL List.
Canada - WHMIS
     This product has a WHMIS classification of B6, D1B, E.
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of the information required by those regulations.
Canadian Ingredient Disclosure List

Section 16 - Additional Information

MSDS Creation Date: 10/28/1997
Revision #5 Date: 12/11/2007

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 event shall Fisher 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 Fisher has been advised of the possibility of such damages.