Product ID:CREST PAC-4
MSDS Date:02/28/1993
FSC:6850
NIIN:00-965-2329
MSDS Number: BSHLJ

CREST INDUSTRIAL CHEMICALS, INC

6341 BEVERLY HILL
HOUSTON, TX 77057
US

Emergency Phone: 800-255-3924

Info Phone: 713-780-1828

Preparer: J D BENNETT

Cage: 77513

CREST INDUSTRIAL CHEMICALS INC

42242 HOUSTON, TX 77057-6500 US

Telephone: 713-780-1828

Cage: 77513

SODIUM METASILICATE

CAS: 6834-92-0

RTECS: VV9275000

OSHA PEL 2 PPM

ACGIH TLV: 2 PPM

0 G/L

RTECS: 9999999VO

Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Health Hazards Acute and Chronic:SEVERE SCARRING OF THE THROAT CAN
OCCUR AFTER SWALLOWING. SKIN: SEVERE RASH MAY OCCUR IF SKIN NOT
WASHED IMMEDIATELY. EYES: FLUSH EYES FOR FIFTEEN MINUTES. OBTAIN
MEDICAL ATTENTION IMMEDIATELY.
Effects of Overexposure:EYES: CONTACT WITH THE PRODUCT ARE DESTRUCTIVE
TO EYE TISSUES. THE SOLUTION MAY CAUSE SEVERE BURNS THAT MIGHT
RESULT IN DAMAGE TO THE EYES. MIST MAY CAUSE IRRITATION TO THE
EYES. INHALATION: AIRBORNE CONCENTRATIONS MAY CAUSE MILD
IRRITATIONS. AT HIGH CONCENTRATIONS, DAMAGE TO THE UPPER
RESPIRATORY TRACT.
Medical Cond Aggravated by Exposure:PREEXISTING SKIN, EYE, AND
RESPIRATORY DISORDERS MAY BE AGGRAVATED BY EXPOSURE TO THIS
PRODUCT.

First Aid:EYES: IMMED FLUSH EYES WITH LARGE AMOUNTS OF WATER FOR AT
LEAST 15 MIN. GET MED AID IMMED. SKIN: IMMED FLUSH WITH WATER FOR
15 MINUTES. GET MED AID IMMED. INHALATION: REMOVE TO FRESH AIR &
PROVIDE OXY GEN IF BREATHING DIFFICULT. GIVE ARTIFICIAL RESPIRATION
IF NOT BREATHING. GET MED AID IMMED. INGESTION: DON'T INDUCE
VOMITING. IF CONSCIOUS, DILUTE BY GIVING LARGE VOLUMES OF
MILK/WATER. GET MED AID.

Flash Point:NOT FLAMMABLE
Extinguishing Media:CARBON DIOXIDE, CHEMICAL FOAM, OR A WATER MIST
Fire Fighting Procedures:THERMAL DECOMP WILL PRODUCE TOXIC CARBON
OXIDES. DON'T ENTER CONFINED FIRE SPACE WITHOUT FULL BUNKER GEAR
INCLUDING SCBA. COOL FIRE EXPOSED CONTAINERS W/WATER.
Unusual Fire/Explosion Hazard:CARBON OXIDES MAY BE PRODUCED. OXIDES ARE
DANGEROUS. COOL CONTAINERS EXPOSED TO EXTREME HEAT WITH WATER TO
PREVENT PRESSURE BUILDUP OR CONTAINER WEAKENING.

Spill Release Procedures:PREVENT CONTACT.WEAR RSPRTR & FULL BODY
PROTECTIVE CLOTHES.SPILL SLIPPERY.TAKE CARE (PREVENT FALLING).STOP
LEAK IF SAFE.DIKE.REMOVE W/VACUUM TRUCK/PUMP TO STOR/SALV
TANKS.SOAK UP RESIDUE W/ABSORB.PLAC E IN CNTNR & SEAL.FLUSH W/WATER
TO REMOVE RESIDUE.

Handling and Storage Precautions:DON'T STORE IN SUNLIGHT. STORE <120F,
BUT >32F. DISCARD BULGING OR DISTORTED CONTAINERS. DON'T RECYCLE OR
REUSE CNTNRS. STORE IN COOL,DRY,VENTED AREA.
Other Precautions:STORE AWAY FROM MINERAL ACIDS. KEEP CNTNR CLSD. DON'T
USE PRESSURE TO EMPTY. DON'T GET ON SKIN, EYES, CLOTHING. DON'T
CUT, GRIND, OR WELD ON CONTAINERS. EMPTY CONTAINERS RETAIN RESIDUE.
OBEY HAZARD WA RNINGS.

Respiratory Protection:NIOSH/MSHA BREATHING APPARATUS. IF ABOVE TLV,
NIOSH SCBA IN POS PRESSR MODE. FOR LIMITED EXPOSURE TIME FULL FACE
MASK W/ORGANIC VAPOR CARTRIDGE/CANISTER MAY BE USED. DON'T USE IN
OXYGEN DEFICIENT AREA . INITIATE FORMAL TRAINING/SCREENING.
Ventilation:LOCAL EXHAUST OR MECHANICAL VENTILATION.
Protective Gloves:ALKALI RESISTANT GLOVES
Eye Protection:FULL FACE SHIELD, DON'T WEAR CONTACTS.
Other Protective Equipment:ALKALI RESISTANCE APRONS, BOOTS, AND SUITS
MUST BE WORN.
Work Hygienic Practices:WASH THOROUGHLY ALL EXPOSED AREAS WITH SOAP &
WATER AFTER HANDLING OR USING PRODUCT. DON'T SMOKE AROUND PRODUCT.
Supplemental Safety and Health

HCC:B3
Vapor Pres:360
Vapor Density:> 1
pH:10.9
Evaporation Rate & Reference:LESS THAN 1 (BU AC=1)
Solubility in Water:COMPLETELY SOLUBLE
Appearance and Odor:LIGHT-WHITE POWDER WITH AN ALKALI ODOR
Percent Volatiles by Volume:0

Stability Indicator/Materials to Avoid:YES
AVOID STRONG ACIDS
Stability Condition to Avoid:AVOID STRONG ACIDS
Hazardous Decomposition Products:THERMAL DECOMPOSITION WILL PRODUCE
TOXIC OXIDES OF CARBON.

Waste Disposal Methods:DISPOSE OF FLUSH SOLUTION AS ABOVE. DISPOSE OF
PER STATE, CITY & FEDERAL REGS. DO NOT DISPOSE OR DISCHARGE INTO
SEWERS OR NAVIGABLE WATERS. DO NOT ALLOW PRODUCT TO CONTAMINATE
GROUND WATERS. DISPOSAL MUST BE IN COMPLIANCE W/FED,STATE & LOCAL
REGS.

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.