Product ID:FUMED SILICA HDK N 20, 623921
MSDS Date:10/23/1992
FSC:6850
NIIN:00N084034
MSDS Number: CGSBH

Emergency Phone: 800-424-9300 (CHEMTREC)

Info Phone: 206-889-3400

Cage: DO735

Telephone: 425-889-3400/425-889-3617

Cage: 0STM5

SILICA, AMORPHOUS-FUME; (SILICA, AMORPHOUS, FUMES. CRYST.

CAS: 69012-64-2

RTECS: VV7312000

Fraction By Weight: 100%

OSHA PEL 20 MPPCF

ACGIH TLV: 10 MG/M3 TDUST

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: NONE KNOWN. CHRONIC: NONE
KNOWN. A LONG TERM EXCEEDING OF TLV COULD LEAD TO DAMAGING EFFECTS
AS A RESULT OF MECHANICAL OVERLOADING OF THE RESPIRATORY TRACT.
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:THERE ARE NO DATA AVAILABLE WHICH
ADDRESS MEDICAL CONDITIONS WHICH ARE GENERALLY RECOGNIZED AS BEING
AGGRAVATED BY EXPOSURE TO THIS PRODUCT.

First Aid:INHALATION: REMOVE TO FRESH AIR. GET MEDICAL ADVISE. EYES:
FLUSH WITH PLENTY OF WATER FOR AT LEAST 15 MINUTES. GET MEDICAL
ATTENTION IF IRRITATION OCCURS. SKIN: WASH WITH WATER AND SOAP.
INGESTION: CA LL MD IMMEDIATELY .

Extinguishing Media:PRODUCT DOES NOT BURN. USE EXTINGUISHING MEASURES
APPROPRIATE TO THE SOURCE OF THE FIRE.
Fire Fighting Procedures:NONE. WEAR NIOSH APPROVED SCBA AND FULL
PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE.

Spill Release Procedures:TAKE UP MECHANICAL MEANS AFTER WETTING AND
REMOVE. OBSERVE ALL LOCAL, STATE AND FEDERAL LAWS AND REGULATIONS
REGARDING DISPOSAL, SPILL, CLEAN UP REMOVAL OR DISCHARGE.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:AVOID DUST FORMATION.
Other Precautions:DO NOT BREATHE DUST.

Respiratory Protection:USE WITH ADEQUATE VENTILATION. NIOSH APPROVED
RESPIRATOR FOR NUISANCE DUST IF DUST LEVEL EXCEEDS TLV.
Ventilation:LOCAL EXHAUST (TO MAINTAIN CONCENTRATION BELOW TLV).
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGLES .
Other Protective Equipment:EMERGENCY EYEWASH AND DELUGE SHOWER MEETING
ANSI DESIGN CRITERIA .
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
NONE SPECIFIED BY MANUFACTURER.

Solubility in Water:NEGLIGIBLE
Appearance and Odor:WHITE POWDER WITHOUT ODOR

Stability Indicator/Materials to Avoid:YES
NONE.
Stability Condition to Avoid:NONE.
Hazardous Decomposition Products:NONE.

Waste Disposal Methods:ACCORDING TO LOCAL, STATE AND FEDERAL
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.