Product ID:OS-120
MSDS Date:10/18/1996
FSC:6850
NIIN:01-435-5656
MSDS Number: CDQQR

DOW CORNING CORPORATION

3901 S SAGINAW RD
MIDLAND, MI 48640
US

Emergency Phone: 517-496-5900/800-424-9300(CHEMTREC)

Info Phone: 517-496-6000/8577 (TRANSPORT)

Cage: 5D028

DOW CORNING CORP

997 MIDLAND, MI 48686-0997 US

Telephone: 517-496-6000/517-496-6315

Cage: 5D028

HEXAMETHYLDISILOXANE

CAS: 107-46-0

RTECS: JM9237000

Fraction By Weight: 89%

PROPYLENE GLYCOL MONOMETHYL ETHER

CAS: 107-98-2

RTECS: UB7700000

Fraction By Weight: 11%

OSHA PEL 100 PPM

ACGIH TLV: 100 PPM/150STEL;9596

LD50 LC50 Mixture:LD50 (ORAL, RAT) IS NOT KNOWN.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:TARGET ORGANS:EYE, SKIN, RESPIRATORY &
GI TRACTS. ACUTE- EYE:MAY CAUSE DISCOMFORT. SKIN:REPEATED/PROLONGED
CONTACT MAY CAUSE DEFATTING. INHALE:MAY CAUSE DROWSINESS.
ORAL:SMALL AMOUNTS TRANSFERRED TO M OUTH BY FINGERS SHOULD NOT
INJURE. SWALLOWING LARGE AMOUNTS MAY INJURE SLIGHTLY & CAUSE
DROWSINESS. CHRONIC- DERMATITIS.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION, HEADACHE, NAUSEA, SKIN DRYNESS,
TEARING, BLURRED VISION, ITCHING, DERMATITIS, DISCOMFORT
Medical Cond Aggravated by Exposure:PERSONS WITH PRE-EXISTING SKIN
DISORDERS, EYE PROBLEMS OR IMPAIRED RESPIRATORY FUNCTION MAY BE
MORE SUSCEPTIBLE TO THE EFFECTS OF THIS PRODUCT.

First Aid:GET MEDICAL HELP IF SYMPTOMS PERSIST. INHALED:REMOVE TO FRESH
AIR. PROVIDE CPR/OXYGEN IF NEEDED. EYES:IMMEDIATELY FLUSH WITH
WATER FOR 15 MINUTES. HOLD EYELIDS OPEN. SKIN:WASH WITH SOAP &
WATER. ORAL: SEEK MEDICAL ATTENTION.

Flash Point Method:CC
Flash Point:24.8F,-4.0C
Autoignition Temp:Autoignition Temp Text:689F
Lower Limits:1.3%
Upper Limits:18.6%
Extinguishing Media:USE DRY CHEMICAL, CARBON DIOXIDE, ALCOHOL
FOAM/WATER FOG FOR SMALL FIRE. USE ALCOHOL FOAM, WATER SPRAY FOR
LARGE FIRE.
Fire Fighting Procedures:WEAR PROTECTIVE CLOTHING AND NIOSH-APPROVED
SELF-CONTAINED BREATHING APPARATUS. COOL FIRE-EXPOSED CONTAINERS
WITH WATER SPRAY.
Unusual Fire/Explosion Hazard:VAPOR IS HEAVIER THAN AIR AND CAN TRAVEL
CONSIDERABLE DISTANCE TO A SOURCE OF IGNITION AND FLASH BACK.
CONTAINERS MAY RUPTURE DUE TO VAPOR PRESSURE BUILDUP.

Spill Release Procedures:WEAR PROTECTIVE EQUIPMENT. ELIMINATE SOURCES
OF IGNITION. VENTILATE AREA. PICK UP SPILL WITH NON-FLAMMABLE
ABSORBENT SUCH AS SAND OR VERMICULITE. TRANSFER TO DISPOSAL DRUMS
USING NON-SPARKING TOOLS. P REVENT LIQUID FROM ENTERING SEWERS OR
WATERWAYS.
Neutralizing Agent:NOT RELEVANT

Handling and Storage Precautions:STORE IN COOL, VENTILATED AREA, AWAY
FROM HEAT, FLAMES, SPARKS, HOT SURFACES AND STRONG OXIDIZING
AGENTS. KEEP CONTAINER TIGHTLY CLOSED.
Other Precautions:AVOID BREATHING VAPORS. DO NOT GET IN EYES, ON SKIN
OR ON CLOTHING. WASH THOROUGHLY AFTER HANDLING AND BEFORE EATING OR
DRINKING. KEEP OUT OF REACH OF CHILDREN. DO NOT INGEST.

Respiratory Protection:NONE REQUIRED WHERE ADEQUATE VENTILATION
CONDITIONS EXIST. IF AIRBORNE CONCENTRATION IS HIGH, WEAR A
NIOSH-APPROVED ORGANIC VAPOR RESPIRATOR.
Ventilation:USE EXPLOSION-PROOF VENTILATION EQUIPMENT TO CONTROL VAPOR
CONCENTRATIONS.
Protective Gloves:NITRILE FOR REPEATED/PROLONGED CONTACT
Eye Protection:SAFETY GLASSES/CHEMICAL SPLASH GOGGLES
Other Protective Equipment:SAFETY SHOWER AND EYE WASH FOUNTAIN SHOULD
BE LOCATED NEARBY. WEAR APPROPRIATE PROTECTIVE CLOTHING FOR RISK OF
EXPOSURE.
Work Hygienic Practices:OBSERVE GOOD INDUSTRIAL HYGIENE PRACTICES AND
RECOMMENDED PROCEDURES.
Supplemental Safety and Health

HCC:F2
NRC/State Lic Num:NOT RELEVANT
Vapor Pres:44.6 @ 77F
Vapor Density:>1
Spec Gravity:0.77
Viscosity:0.64 CST
Appearance and Odor:COLORLESS LIQUID; ETHER-LIKE ODOR
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS
Stability Condition to Avoid:HEAT, FLAMES, SPARKS, HOT SURFACES, OTHER
IGNITION SOURCES
Hazardous Decomposition Products:CARBON MONOXIDE, CARBON DIOXIDE,
SILICONE DIOXIDE AND FORMALDEHYDE MAY BE FORMED DURING COMBUSTION.

Waste Disposal Methods:DISPOSE OF IN AN APPROVED INCINERATOR OR
CONTRACT WITH LICENSED CHEMICAL WASTE DISPOSAL SERVICE. DISCHARGE,
TREATMENT OR DISPOSAL IS SUBJECT TO FEDERAL, STATE OR LOCAL LAWS.
EPA D001 (IGNITABLE). FOR MORE INFORMATION, CALL DOW AT
517-496-6315.

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.