Product ID:DMDCS;PRODUCT CODE:83410
MSDS Date:03/24/1989
FSC:6810
NIIN:01-304-7246
MSDS Number: BHCLK

Emergency Phone: 800-874-3723

Info Phone: 800-874-3723

Preparer: THERESA LIGHT/RALPH FARME

Cage: 60088

Telephone: 815-968-0747

Cage: 60088

DIMETHYLDICHLOROSILANE (SARA III)

CAS: 75-78-5

RTECS: VV3150000

Fraction By Weight: >99.0%

LD50 LC50 Mixture:LD50 (ORAL RAT) IS 800 MG/KG
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: INGEST- HIGHLY TO SERIOUSLY
TOXIC. MAY CAUSE SEVERE BURNS OF MOUTH, THROAT, ESOPHAGUS, AND
STOMACH. IRRITATION OF EYE AND RESPIRATORY TRACT. CORROSIVE TO THE
SKIN. CHRONIC: INGEST- CIRCULATORY COLLAPSE AND COMA. INHALE-
POTENTIALLY LETHAL DUE TO LUNG INJURY.
Explanation of Carcinogenicity:DATA PER MSDS
Effects of Overexposure:EXPOSURE TO HYDROGEN CHLORIDE VAPOR MAY CAUSE
DISCOLORATION OR EROSION OF THE TEETH, BLEEDING OF THE NOSE AND
GUMS AND ULCERATION OF THE NASAL MUCOUSA.
Medical Cond Aggravated by Exposure:BREATHING OF VAPOR AND/OR MIST MAY
AGGRAVATE ASTHEMA AND INFLAMMATORY OR FIBROTIC PULMONARY DISEASE.
BECAUSE OF ITS IRRITATING PROPERTIES, THIS MATERIAL MAY AGGRAVATE
AN EXISTING DERMATITIS.

First Aid:EYES: FLUSH IMMED. WITH LG QUANT. OF WATER FOR 15 MINS. GET
IMMED. MED. ATTEN. W/OUT FAIL. SKIN: FLUSH WITH WATER FOR SEV.
MINS. AND THEN WASH WITH SOAP AND WATER. GET MED. ATTEN. IF
BLISTER, REDNESS, BURNING APPEARS. INHALE: REMOVE TO FRESH AIR.
GET MED. ATTN. FOR CONT. ILL EFFECTS. INGEST: RINSE MOUTH W/ WATER,
DO NOT SWALLOW! GIVE 1/2 PT. MILK/WATER TO DRINK. GET IMM. MED.
ATTN.

Flash Point Method:CC
Flash Point:70.0F,21.1C
Autoignition Temp:Autoignition Temp Text:797 F
Lower Limits:3.4%
Upper Limits:9.5%
Extinguishing Media:CARBON DIOXIDE OR DRY CHEMICAL FOR SMALL FIRES;
WATER SPRAY OR STANDARD FOAM. NOTE WARNINGS.
Fire Fighting Procedures:FIRE FIGHTERS SHOULD USE NIOSH APPROVED SCBA &
FULL PROTECTIVE EQUIPMENT WHEN FIGHTING CHEMICAL FIRE. USE WATER
SPRAY TO COOL NEARBY CONTAINERS EXPOSED TO FIRE.
Unusual Fire/Explosion Hazard:THE USE OF WATER TO EXTINQUISH FIRES WILL
RESULT IN THE LIBERATION OF HCL. VAPORS MAY TRAVEL TO AN IGNITION
SOURCE AND FLASH BACK EXPLOSIVELY. CONT. MAY EXPLODE

Spill Release Procedures:SHUT OFF POSSIBLE IGNITION SOURCES. CONTAIN
SPILL. SPREAD SODA ASH LIBERALLY TO ABSORB AND NEUTRALIZE
MATERIAL.SCOOP UP USING NON-METALLIC EQUIPMENT. SCRUB AREA
THOROUGHLY WITH PLENTY OF WATER TO DRAI N.
Neutralizing Agent:SODA ASH

Handling and Storage Precautions:STORE IN A COOL, DRY, WELL VENTILATED
AREA. KEEP CONTAINERS TIGHTLY CLOSED WHEN NOT IN USE. PROTECT
CONTAINERS FROM PHYSICAL DAMAGE.
Other Precautions:CONTAINERS MAY EXPLODE IN HEAT OF FIRE.

Respiratory Protection:SELF-CONTAINED/ORGANIC VAPOR
Ventilation:MECHANICAL (GENERAL) VENTILATION IS REQUIRED. LOCAL EXHAUST
MAY BE REQUIRED IF WORK AREA IS NOT VENTED.
Protective Gloves:NEOPRENE, NITRILE, OR NATURAL RUBBER
Eye Protection:SAFETY GOGGLES WITH OPTIONAL FACE SHIELD
Other Protective Equipment:EYE WASH STATION AND SAFETY SHOWER,WORK
CLOTHING AND APRON AS REQUIRED.
Work Hygienic Practices:OBSERVE GOOD PERSONAL HYGIENE PRACTICES AND
RECOMMENDED PROCEDURES. DO NOT WEAR CONTAMINATED CLOTHING OR
FOOTWEAR.
Supplemental Safety and Health
AVOID PROLONGED OR REPEATED EXPOSURE. DO NOT GET ON SKIN OR IN EYES. DO
NOT BREATHE VAPORS OR MISTS.

HCC:F2
Boiling Pt:B.P. Text:158F,70C
Melt/Freeze Pt:M.P/F.P Text:3.2F,-16C
Vapor Pres:1OO MMHG
Vapor Density:4.4
Spec Gravity:1.064
Evaporation Rate & Reference:3.3 (BUTYL ACETATE=1)
Solubility in Water:REACTS
Appearance and Odor:COLORLESS/NEARLY COLORLESS FUMING LIQUID W/ PUNGENT
ODOR OF HYDROGEN CHLORIDE
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:YES
WATER, AQUEOUS ACIDS AND ALKALIES, KETONES, ALDEHYDES, ALCOHOLS,
ORGANIC ACIDS, PEROXIDES, AMINES, ACETONE, ETC.
Stability Condition to Avoid:VAPOR EXPLOSION HAZARD INDOORS, OUTDOORS
OR IN SEWERS. RUN OFF TO SEWER MAY CREATE FIRE OR EXPLOSION HAZARD.
Hazardous Decomposition Products:BURNING CAN PRODUCE CARBON MONOXIDE,
CARBON DIOXIDE AND OXIDES OF SILICONE AND HYDROGEN CHLORIDE.

Waste Disposal Methods:MATERIAL SHOULD BE HELD IN LABELLED CONTAINERS
FOR PRESENTATION TO A PROPERLY LICENSED WASTE DISPOSAL FIRM. INSURE
COMPLIANCE WITH ALL APPLICABLE LAWS AND REGULATIONS.

Disclaimer (provided with this information by the compiling agencies):
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.