Product ID:LEAROK 4X
MSDS Date:08/01/1988
FSC:5350
NIIN:00N022081
MSDS Number: BLNZG

LEA MANUFACTURING CO

237 EAST AURORA ST
WATERBURY, CT 06706
US

Emergency Phone: 203-753-5116; 313-644-5626

Info Phone: 203-753-5116

Preparer: WILLIAM M DOWNING

Cage: 75554

JASON INC

WATERBURY, CT 06705-3830 US

Telephone: 203-753-5116

Cage: 75554

SILICA, CRYSTALLINE - QUARTZ

CAS: 14808-60-7

RTECS: VV7330000

Fraction By Weight: 67-80%

OSHA PEL SEE TABLE Z3

ACGIH TLV: 0.1 MG/M3 RDUST;9293

ADDITION OF METALS MAY INCREASE COMBUST/CHANGE

RTECS: 9999999ZZ

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:YES OSHA:NO
Health Hazards Acute and Chronic:NO HAZ IS EXPECTED FROM UNUSED PROD.
DURING USE IN A BUFFING OPERATION, DUST MAY IRRIT SKIN/DAMAGE OUTER
SURF OF EYE BY ABRASIVE ACTION. INGEST MAY CAUSE GI DISTURBANCES.
DUST GENERATED DURING BUFFING MAY INCLUDE SILICA. MEDICAL &
SCIENTIFIC EVIDENCE SUGGESTED THAT AS AMT &/OR DURATION OF SILICA
(EFTS OF OVEREXP)
Explanation of Carcinogenicity:CRYSTALLINE SILICA: IARC GRP 2A.
Effects of Overexposure:HLTH HAZ:INCREASES, RISK OF SERIOUS RESP
DISEASE ALSO INCR. IMPLEMENTATION/MONITORING/EVALUATING YOUR OWN
INDUS HYGIENE & DUST CONTROL PROGRAM WILL MIN RISK ASSOC W/SILICA
DUST INHAL. INADEQ PROT DURI NG BUFFING MAY CAUSE DISTURBED EYE
VISION &/OR SKIN IRRIT. EXCESS INHAL MAY CAUSE SHORTNESS OF BRTH &
REDUCED PULM FUNC.
Medical Cond Aggravated by Exposure:INDIVIDUALS WITH PULMONARY AND/OR
RESPIRATORY DISEASE, INCLUDING BUT NOT LIMITED TO, ASTHMA AND
BRONCHITIS OR SUBJECT TO EYE IRRITATION, SHOULD BE PRECLUDED FROM
EXPOSURE.

First Aid:EYE: FLUSH WITH WATER FOR AT LEAST 15 MIN. SKIN: WASH WITH
SOAP AND WATER. INGEST OF LARGE AMOUNTS: INDUCE VOMIT. GROSS
INHALATION: REMOVE TO FRESH AIR. SEEK MEDICAL ATTENTION AS NEEDED.

Flash Point Method:COC
Flash Point:>350F,>177C
Extinguishing Media:WATER FOG, FOAM, DRY CHEMICAL, CARBON DIOXIDE.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA AND FULL
PROTECTIVE EQUIPMENT IF POTENTIAL FOR EXPOSURE TO SMOKE, FUME OR
COMBUSTIBLE PRODUCTS.
Unusual Fire/Explosion Hazard:WATER OR FOAM MAY CAUSE VIOLENT FROTHING,
ESPECIALLY IF SPRAYED DIRECTLY INTO BURNING LIQUID. FIBER LINT WITH
DRIED PRODUCT MAY MAKE MIX MORE COMBUST. (ING 2)

Spill Release Procedures:WEAR PROT CLTHG. RECLAIM FOR REUSE IF
POSSIBLE, OR SWEEP, SCOOP UP, AND CONTAINERIZE FOR LATER DISPOSAL.
THIS PRODUCT IS NOT A HAZARDOUS WASTE BY ITSELF, BUT BE SURE TO
CHECK IF IT HAS COME IN CNTCT W /HAZ SUBSTANCE OR MATERIAL BEFORE
DISPOSAL.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:KEEP OUT OF SUN & AWAY FROM HEAT
SOURCES. PROTECT PASTE/LIQ PROD FROM FREEZING OBSERVE ALL
SAFEGUARDS FOR CONTAINER RESIDUE UNTIL CLEANED/DESTROYED.
Other Precautions:DURING A BUFFING OPERATION, USE AN EXHAUST, EYE PROT,
CLTHG & GLOVES TO PVNT COMPOUND DUST/THE MATERIAL BEING REMOVED
DURING BUFFING FROM ENTERING THE NOSE, THROAT AND/OR SKIN OF THE
OPERATOR. OSHA ST UDIES HAVE FOUND A BRTHG (SUPP DATA)

Respiratory Protection:DURING BUFFING USE NIOSH/MSHA APPROVED DUST/MIST
RESPIRATOR SIMILAR TO #3710 FROM 3M.
Ventilation:LOCAL EXHST: WHEN AIRBORNE EXPOSURE LIMITS ARE EXCEEDED
DURING USE. MECH: ADEQUATE FOR STORAGE AND HANDLING.
Protective Gloves:CLOTH HEAVY DUTY DURING USE.
Eye Protection:CHEMICAL WORKERES GOGGLES .
Other Protective Equipment:CLEAN WORKCLOTHES, EYE WASH.
Work Hygienic Practices:WASH AFTER PHYSICAL CNTCT & BEFORE EATING. DO
NOT PERMIT DUST TO ACCUM IN WORK AREA. TRAIN YOUR EMPLOYEES &(SUPP
DATA)
Supplemental Safety and Health
OTHER PREC: ZONE CONC FOR BUFFING EQUIP WITH NO VENTILATION TO BE
APPROX 1.4 MG/M3 FOR TOTAL RESP DUST. HYGIENE PRACT: WARN YOUR
CUSTOMERS (IN THE EVENT OF RESALE) IN ACCORDANCE WITH ALL "RIGHT-
TO-KN OW" REGULATIONS.

HCC:N1
Boiling Pt:B.P. Text:>700F,>371C
Melt/Freeze Pt:M.P/F.P Text:>125F,>52C
Spec Gravity:1.7
Solubility in Water:NEGLIGIBLE
Appearance and Odor:DENSE WHITE COLORED BRICK W/MILD ODOR.

Stability Indicator/Materials to Avoid:YES
CNTCT W/POWERFUL OXIDIZERS: FLUORINE, CHLORINE, MAY CAUSE FIRE. CNTCT
W/STRONG BASE OR ALKALI MAY CAUSE HEAT EVOLUTION.
Stability Condition to Avoid:TEMPERATURES OVER 350 F.
Hazardous Decomposition Products:CARBON AND SMOKE

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE WITH ALL LOCAL, STATE
AND FEDERAL REGULATIONS. WASTE GENERATED FROM A BUFFING OPERATION
CAN CONTAIN LINT WHICH MAY BE COMBUSTIBLE.

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.