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MSDS  : HI-SIL 233
CAS  : 112945-52-5
NAME  : silicon dioxide, hydrate; (sio*2 hydrate)
silica gel
supdat:temporarily deposited in animals' lungs, most of
ing 3:rslts of all studes performed by, or known to, ppg
ing 4:precipitated silicas. ppg recommends that persons
ing 5:areas unless phys approves & certifies their fitness
other prot equip:be i/a/w 29 cfr 1910.132 and 29 cfr
===================== Product Identification =====================

MSDS NAME:HI-SIL 233
NIIN:01-022-7031
MSDS Number: BWSVB
=== Responsible Party ===
Company:PPG INDUSTRIES INC
Address:ONE PPG PLACE
City:PITTSBURGH
State:PA
ZIP:15272
Country:US
Info Phone Num:304-843-1300
Emergency Phone Num:304-843-1300
Preparer's Name:R KENNETH LEE
CAGE:93915
=== Contractor Identification ===
Company:PPG INDUSTRIES INC CHEMICAL DIVISION
Address:ONE GATEWAY CENTER
City:PITTSBURGH
State:PA
ZIP:15222-1416
Country:US
Phone:304-843-1300
CAGE:93915

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

Name:SILICON DIOXIDE, HYDRATE; (SIO*2 HYDRATE)
RTECS #:VW0600000
Fraction by Wt: 87%
OSHA PEL:N/K
ACGIH TLV:N/K

Name:SILICA GEL
CAS:112945-52-5
RTECS #:VV7310000
OSHA PEL:6 MG/M3
ACGIH TLV:10 MG/M3

Name:SUPDAT:TEMPORARILY DEPOSITED IN ANIMALS' LUNGS, MOST OF
DEPOSITED MATL WAS CLEARED SOON AFTER DUST EXPOS ENDED. (ING 4)
RTECS #:9999999ZZ

Name:ING 3:RSLTS OF ALL STUDES PERFORMED BY, OR KNOWN TO, PPG
INDICATE VERY LOW ORDER OF PULM ACTIVITY FOR SYNTHETIC (ING 5)
RTECS #:9999999ZZ

Name:ING 4:PRECIPITATED SILICAS. PPG RECOMMENDS THAT PERSONS
W/BRTHG PROBLEMS/LUNG DISEASE SHOULD NOT WORK IN DUSTY (ING 6)
RTECS #:9999999ZZ

Name:ING 5:AREAS UNLESS PHYS APPROVES & CERTIFIES THEIR FITNESS
TO WEAR RESPIRATORY PROTECTION.
RTECS #:9999999ZZ

Name:OTHER PROT EQUIP:BE I/A/W 29 CFR 1910.132 AND 29 CFR
1910.133.
RTECS #:9999999ZZ

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

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE:EXCESSIVE CONT W/POWDER CAN
CAUSE DRYING OF MUC MEMB OF NOSE, EYES, & THROAT DUE TO ABSORPTION
OF MOISTURE & OILS. THIS MATL CAN ALSO CAUSE NASAL IRRIT &
NOSEBLEEDS. EYE CONT W/POWDER CAN RSLT I N MILD IRRIT.
CHRONIC:EPIDEMIOLOGICAL STUDY WAS CONDUCTED WHICH INCLD 165
PRECIPITATED SILICA WORKERS (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ:WHO HAD BEEN EXPOS AN AVERAGE TIME
SPAN OF 8.6 YRS. OF THESE 165 WORKERS, 44 HAD BEEN EXPOS FOR AN
AVERAGE OF 18 YRS. NO ADVERSE EFTS WERE NOTED IN COMPLETE MED
EXAMINATIONS (INCLDG CHEST ROE NTGENOGRAMS) OF THESE WORKERS. PULM
FUNCTION DECREMENTS WERE CORRELATED ONLY W/SMOKING & AGE BUT NOT
W/DEGREE/ (SUPDAT)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:INGEST:CALL MD IMMEDIATELY . SKIN:FLUSH W/COPIOUS AMOUNTS OF
WATER. CALL MD . INHAL:REMOVE AFFECTED PERSON TO FRESH AIR. IF
IRRIT/DISCOMFORT PERSISTS, CONSULT PHYS. EYE:FLUSH W/PLENTY OF W
ATER FOR @ LEAST 15 MINS. IF IRRIT/DISCOMFORT OCCURS, CONSULT PHYS.
NOTES TO PHYS (INCLDG ANTIDOTES):TREAT SYMPTOMATICALLY.

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

Flash Point:NONE
Extinguishing Media:NOT APPLICABLE. MEDIA SUITABLE FOR SURROUNDING FIRE
.
Fire Fighting Procedures:NOT APPLICABLE. USE NIOSH/MSHA APPROVED SCBA &
FULL PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE.

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

Spill Release Procedures:VACUUM SPILLED MATL & PLACE IN CLSD PLASTIC
BAGS FOR DISPOSAL.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:STORE IN DRY AREA. AVOID PRLNGD/RPTD
INHAL OF DUST. MAY IRRITATE RESP TRACT. AVOID CONT W/EYES. MAY
CAUSE IRRIT & PAIN.
Other Precautions:AVOID PRLNGD, RPTD, OR EXCESSIVE CONT W/SKIN. MAY
CAUSE IRRIT & DISCOMFORT. USE W/ADEQ VENT. VENT MSUT BE SUFFICIENT
TO LIM EMPLOYEE EXPOS TO PROD BELOW PEL EXPOS LIMS. OBSERVANCE OF
LOWER LIMS IS ADV ISABLE.

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

Respiratory Protection:NIOSH/MSHA APPRVD DUST FILTER RESPIRATOR EXPOS
ABOVE PEL EXPOS LIMS. RESP USE LIMITATIONS MAY BE NIOSH/MSHA/MFR
MUST BE OBSERVED. RESP PROT PROGRAMS MUST BE I/A/W 29 CFR 1910.134.
Ventilation:GEN/LOC EXHAUST SUFFICIENT TO MAINTAIN EMPLOYEE EXPOS BELOW
PEL EXPOS LIMITS.
Protective Gloves:CLOTH, LEATHER, OR RUBBER.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGS .
Other Protective Equipment:BOOTS, APRONS, OR CHEM SUITS SHOULD BE USED
WHEN NEC TO PVNT SKIN CONT. PERSONAL PROT CLTHG & USE OF EQUIP MUST
(ING 7)
Work Hygienic Practices:WASH THORO EVERYDAY AFTER WORK. DO NOT EAT,
DRINK OR SMOKE IN WORK AREA.
Supplemental Safety and Health
PH:6.5-7.3 (5% SUSPENSION). MATLS TO AVOID:ADDITIVES MAY ALTER
TOXICOLOGICAL PROPETIES. EFTS OF OVEREXP:DURATION OF DUST EXPOS.
LAB STUDIES HAVE ALSO BEEN CONDUCT IN SM ANIMALS VIA INHAL TO LEV
OF PRE CIPATED SILICA DUST OF UP TO 126 MG/CU.M. FOR PERIODS FROM 6
MONTH TO 2 YRS. ALTHOUGH PRECIPATED SILICA WAS (ING 3)

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

Vapor Pres:NONE
pH:SUPDAT
Solubility in Water:ESSNTLY INSOLUBLE
Appearance and Odor:WHITE, ODORLESS POWDER

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

Stability Indicator/Materials to Avoid:YES
AVOID ALTERATION OF PROD PROPERTIES BEFORE USE. CALCINING, WHICH MAY
RSLT IN CRYSTALLINE FORMATION/MIXING WITH (SUPDAT)
Stability Condition to Avoid:HIGH TEMPERATURES (>800C) TREATMENT
(CALCINING).
Hazardous Decomposition Products:NONE.

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

Waste Disposal Methods:WASTE FROM THIS PROD MAY BE DISPOSED OF IN
SANITARY LANDFILL IF FEDERAL, STATE AND LOCAL REGS PERMIT. CARE
SHOULD BE EXERCISED TO AVOID CREATION OF DUST DURING DISPOSAL
OPERATIONS.

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.

*** END OF RECORD ***
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