Product ID:HI-SIL 233
MSDS Date:07/03/1991
FSC:6850
NIIN:01-022-7031
MSDS Number: BWSVB

PPG INDUSTRIES INC

ONE PPG PLACE
PITTSBURGH, PA 15272
US

Emergency Phone: 304-843-1300

Info Phone: 304-843-1300

Preparer: R KENNETH LEE

Cage: 93915

PPG INDUSTRIES INC CHEMICAL DIVISION

PITTSBURGH, PA 15222-1416 US

Telephone: 304-843-1300

Cage: 93915

SILICON DIOXIDE, HYDRATE; (SIO*2 HYDRATE)

RTECS: VW0600000

Fraction By Weight: 87%

OSHA PEL N/K

ACGIH TLV: N/K

SILICA GEL

CAS: 112945-52-5

RTECS: VV7310000

OSHA PEL 6 MG/M3

ACGIH TLV: 10 MG/M3

TEMPORARILY DEPOSITED IN ANIMALS' LUNGS, MOST OF

RTECS: 9999999ZZ

RSLTS OF ALL STUDES PERFORMED BY, OR KNOWN TO, PPG

RTECS: 9999999ZZ

PRECIPITATED SILICAS. PPG RECOMMENDS THAT PERSONS

RTECS: 9999999ZZ

AREAS UNLESS PHYS APPROVES & CERTIFIES THEIR FITNESS

RTECS: 9999999ZZ

BE I/A/W 29 CFR 1910.132 AND 29 CFR

RTECS: 9999999ZZ

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: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.

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.

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

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.

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)

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

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.

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.

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