Product ID:METHYLDICHLOROSILANE-SIM6504.0
MSDS Date:08/08/1995
FSC:6810
NIIN:00F046280
MSDS Number: BYMST

Emergency Phone: 215-547-1015

Info Phone: 215-547-1015

Cage: 0S392

Telephone: 215-547-1015

Cage: 0S392

DICHLOROMETHYLSILANE

CAS: 75-54-7

RTECS: VV3500000

Fraction By Weight: >97%

Routes of Entry: Inhalation:NO Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:EYES: SEVERE CHEMICAL BURNS,
CONJUNCTIVITIS & CORNEAL DAMAGE. SKIN: IRRITATION, CONTACT
DERMATITIS, SEVERE CHEMICAL BURNS. INHALATION: IRRITATION TO THE
RESPIRATORY TRACT. OVEREXPOSURE MAY PRODUCE SEV ERE TISSUE DAMAGE.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:BURNS, IRRITATION.

First Aid:EYES: IMMEDIATELY FLUSH W/WATER FOR 15 MINS. SKIN: WIPE OFF
EXCESS CHEMICAL GENTLY & W/O DELAY. AFTER THE BULK OF MATERIAL
ISREMOVED BY WIPING, FLUSH W/WATER, THEN WASH W/SOAP & WATER.
INHALATION: REM OVE TO FRESH AIR. INGESTION: NEVER
GIVEFLUIDS/INDUCE VOMITING, IF UNCONSCIOUS/CONVULSING. OBTAIN
MEDICAL ATTENTION IN ALL CASES. NOTE: MATERIAL MAY FORM A SILOXANE
POLYMER ON SKIN, EYES/IN THE LUNGS.

Flash Point Method:COC
Flash Point:-26F
Extinguishing Media:ALCOHOL RESISTANT FOAM, CO2, DRY CHEMICAL. USE OF
HIGH EXPANSION FOAM IS RECOMMENDED TO COVER FLAMES.
Fire Fighting Procedures:USE ONLY DRY MEDIA TO EXTINGUISH FLAMES. WATER
SPRAY/FOG SHOULD ONLY BE USED TO KNOCK DOWN HYDROGEN CHLORIDE
VAPORS IN AREAS DOWNWIND FROM FIRE.
Unusual Fire/Explosion Hazard:AUTOIGNITION TEMP: 446F. IRRITATING FUMES
OF HYDROGEN CHLORIDE & ORGANIC ACID VAPORS MAY DEVELOP WHEN
MATERIAL IS EXPOSED TO WATER/OPEN FLAME.

Spill Release Procedures:MAY BE HAZARDOUS TO AQUATIC LIFE IF RELEASED
TO OPEN WATERS. COVER W/ABSORBENT MATERIAL. TRANSFER TO SUITABLE
CONTAINER FOR DISPOSAL.

Handling and Storage Precautions:STORE IN SEALED CONTAINERS. CONTAINERS
REQUIRED GROUNDING DURING USE. FOR RESEARCH & INDUSTRIAL USE ONLY.
Other Precautions:DANGEROUS WHEN WET & FLAMMABLE LIQUID & CORROSIVE.

Respiratory Protection:IF EXPOSURE EXCEEDS TLV AIR-SUPPLIED/COMBINATION
ORGANIC VAPOR/ACID GAS RESPIRATOR.
Ventilation:LOCAL EXHAUST/MECHANICAL VENTILATION
Protective Gloves:RUBBER, NEOPRENE/NITRILE
Eye Protection:CHEMICAL WORKERS GOGGLES (VITON)
Other Protective Equipment:EYEWASH, EMERGENCY SHOWER.
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE
REUSE.
Supplemental Safety and Health
WASTE CONT'D: FOLLOW ALL CHEMICAL POLLUTION CONTROL REGULATIONS. DOT ID
#: UN1242.

Boiling Pt:B.P. Text:105.8F
Melt/Freeze Pt:M.P/F.P Text:-135.4F
Vapor Pres:400
Spec Gravity:1.1
Appearance and Odor:CLEAR TO STRAW LIQUID W/ACRID ODOR OF HYDROGEN
CHLORIDE.
Percent Volatiles by Volume:>50

Stability Indicator/Materials to Avoid:YES
ALCOHOLS, ACIDS, OXIDIZERS, PLATINUM, IRON SALTS, OTHER LEWIS ACIDS,
POTASSIUM PERMANGANATE.
Stability Condition to Avoid:HEAT, SPARKS, OPEN FLAME. REACTS W/WATER &
MOISTURE IN AIR, LIBERATING HYDROGEN CHLORIDE.
Hazardous Decomposition Products:ORGANIC ACID VAPORS, HYDROGEN
CHLORIDE, HYDROGEN GAS.

Waste Disposal Methods:HYDROLYZE MATERIAL BY SLOWLY MIXING W/WATER IN A
HOOD. LIQUID LAYER CONTAINS HYDROCHLORIC ACID WHICH SHOULD BE
NEUTRALIZED. SOLIDS MAY BE LANDFILLED. ALTERNATELY, ABSORB ONTO
CLAY/VERMICULITE & DISPOS E OF AS SOLID WASTE. (SEE SUPP)

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This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.