=====================  Product Identification  =====================

MSDS NAME:CRYSTALLINE SILICA (QUARTZ)
NIIN:00-884-4012
Status Code:A
MSDS Number: CLBCT
=== Responsible Party ===
Company:U.S. SILICA COMPANY
Box:187
City:BERKELEY SPRINGS
State:WV
ZIP:25411
Country:US
Info Phone Num:304-258-2500
Emergency Phone Num:0000000000
CAGE:28558
=== Contractor Identification ===
Company:U.S. SILICA COMPANY
Box:187
City:BERKELEY SPRINGS
State:WV
ZIP:25411
Country:US
Phone:304-258-2500
CAGE:28558

=============  Composition/Information on Ingredients  =============

Name:SILICON DIOXIDE SIO2
CAS:14808-60-7
RTECS #:VV7330000
ACGIH TLV:0.1 MG/M3

=====================  Hazards Identification  =====================

Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:YES    IARC:YES
Health Hazards Acute and Chronic:PROLONGED EXPOSURE TO RESPIRABLE
    CRYSTALLINE QUARTZ MAY CAUSE DELAYED LUNG INJURY. ACUTE OR	RAPIDLY
    DEVELOPING SILICOSIS MAY OCCUR IN A SHORT PERIOD OF TIME IN HEAVY
    EXPOSURE IN CERTAIN OCCUPATIONS S UCH AS SANDBLASTERS. SILICOSIS IS
    A FORM OF DISABLING PULMONARY FIBROSIS WHICH CAN BE PROGRESSIVE AND
    MAY LEAD TO DEATH.
Explanation of Carcinogenicity:SEE HARD COPY MSDS FOR DETAILS.
Effects of Overexposure:PULMONARY FUNCTION MAY BE REDUCING BY
    INHALATION OF RESPIRABLE CRYSTALLINE SILICA. ALSO LUNG SCARRING
    PRODUCES BY SUCH INHALATION MAY LEAD TO A PROGRESSIVE MASSIVE
    FIBROSIS OF THE LUNG WHICH MAY AGGRA VATE OTHER PULMONARY
    CONDITIONS AND DISEASES AND WHICH INCREASES SUSCEPTIBILITY TO
    PULMONARY TUBERCCULOSIS. PROGRESSIVE MASSIVE FIBEROSIS MAY BE
    ACCOMPANIED BY RIGHT HEART ENLARGEMENT, HEART FAILURE A ND
    PULMONARY FAILURE. SMOKING AGGRAVATES THE EFFECTS OF EXPOSURE.
Medical Cond Aggravated by Exposure:SEE SIGHNS AND SYMPTOMS OF
    OVEREXPOSURE.

=======================  First Aid Measures  =======================

First Aid:FOR SAND IN EYES WASH IMMEDIATELY WITH WATER. IF IRRITATION
    PERSISTS, SEEK MEDICAL ATTENTION. FOR GROSS INHALATION, REMOVE
    PERSON IMMEDIATELY TO FRESH AIR, GIVE RESPIRATION AS NEEDED SEEK
    MEDICAL ATTE NTION.

=====================  Fire Fighting Measures  =====================

Extinguishing Media:NONE  REQUIRED: SAND MAY BE USED AS EXTINGUISHING
    MEDIA.
Unusual Fire/Explosion Hazard:CRYSTALLINE SILICA IS NEIGTHER A FIRE NOR
    AN EXPLOSION HAZARD. CRYSTALINE SILICA MAY BE USED TO PUT OUT CLASS
    A AND B FIRES.

==================  Accidental Release Measures  ==================

Spill Release Procedures:USE DUSTLESS METHODS AND PLACE INTO CLOSABLE
    CONTAINER FOR DISPOSAL OR FLUSH WITH WATER. DO NOT DRY SWEEP. WEAR
    PROTECTIVE EQUIPMENT.

======================	Handling and Storage  ======================

Handling and Storage Precautions:AVOID BREAKAGE OF BAGGED MATERIAL OR
    SPILLS OF BULK MATERIAL.
Other Precautions:USE DUSTLESS SYSTEM FOR HANDLING STORAGE AND CLEAN UP
    SO THAT AIRBORNE DUST DOES NOT EXCEED THE PEL. USE ADEQUATE
    VENTILATION AND DUST COLLECTION. DO NOT ALLOW DUST TO COLLECT.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:UP TO 5X PEL: DUST RESPIRATOR. UP TO 10X PEL:
    SCBA, FUME, DUST, AIR SUPPLIED. UP TO 50X PEL: HIGH PATICULATE
    FILTER,AIR SUPPLIED, SCBA. UP TO 500X PEL: POWERED AIR-PURIFYING,
    TYPE C SUPPLIED-AIR. GREA TER THAN 500X PEL: SCBA, A COMBINATION
    RESPIRATOR.
Ventilation:LOCAL EXHAUST.
Protective Gloves:OPTIONAL
Eye Protection:SAFTEY GLASSES
Other Protective Equipment:OPTIONAL CLOTHING
Work Hygienic Practices:AVOID CREATING DUST.
Supplemental Safety and Health

==================  Physical/Chemical Properties  ==================

Boiling Pt:=2230.C, 4046.F
B.P. Text:4046 F
Melt/Freeze Pt:=1676.7C, ######F
M.P/F.P Text:3050 F
Spec Gravity:2.65
Solubility in Water:INSOLUABLE IN WATER
Appearance and Odor:WHITE OR TAN SAND, GRANDULAR, CRUSHED OR GROUND NO
    ODOR OR TASTE

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
CONTACT WITH POWERFUL OXIDIZING AGENTS SUCH AS FLOURINE CHLORINE
    TRIFLUORIDE MANGANESE TRIOXIDE MAY CAUSE FIRES.
Hazardous Decomposition Products:SILICA WILL DISOLVE IN HYDROFLURIC
    ACID AND PRODUCE A CORROSIVE GAS- SILICON TETRAFLUORIDE.

====================  Disposal Considerations  ====================

Waste Disposal Methods:DISPOSE IN ACCORDANCE WITH FEDERAL, STATE AND
    LOCAL REGULATIONS.

=======================  Other Information  =======================

 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.

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