Product ID:MACOR MACHINABLE GLASS CERAMIC 9658
MSDS Date:03/01/1990
FSC:5620
NIIN:00N014563
MSDS Number: BKNYH

CORNING GLASS WORKS

HOUGHTON PK EB-2
CORNING, NY 14831
US

Emergency Phone: 607-974-8002

Info Phone: 607-974-8835

Cage: 47075

CORNING GLASS WORKS

CORNING, NY 14831 US

Telephone: 607-974-8835

Cage: 47075

SILICA, CRYSTALLINE - QUARTZ

CAS: 14808-60-7

RTECS: VV7330000

Fraction By Weight: 40-50%

OSHA PEL SEE TABLE Z3

ACGIH TLV: 0.1 MG/M3 RDUST;9293

ALPHA-ALUMINA (ALUMINUM OXIDE) (EPA LISTS ONLY FIBROUS

CAS: 1344-28-1

RTECS: BD1200000

Fraction By Weight: 10-25%

OSHA PEL 15 MG/M3 TDUST

ACGIH TLV: 10 MG/M3 TDUST; 9293

BORON OXIDE

CAS: 1303-86-2

RTECS: ED7900000

Fraction By Weight: 5-10%

OSHA PEL 15 MG/M3 TDUST

ACGIH TLV: 10 MG/M3; 9293

POTASSIUM OXIDE

CAS: 12136-56-7

RTECS: TT3790000

Fraction By Weight: 5-10%

MAGNESIUM OXIDE

CAS: 1309-48-4

RTECS: OM3850000

Fraction By Weight: 10-25%

OSHA PEL 15 MG/M3 PARTICULATE

ACGIH TLV: 10 MG/M3;TDUST; 9293

FLUORIDE (AS F)

CAS: 16984-48-8

RTECS: LM6290000

Fraction By Weight: 5-10%

OSHA PEL 2.5 MG/M3

ACGIH TLV: 2.5 MG/M3

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:INHAL: HF AND METAL OXIDE FUME RELEASE
POSS WHEN HEATED. DUST MAY CAUSE UPPER RESP TRACT IRRIT. CHRONIC
EXPOSURE MAY CAUSE MILD PNEUMOCONIOSIS EFFECTS. INGEST: LARGE DOSES
OF F AND BORON CAN CAUSE SEV ERE NAUSEA, VOMITING AND DIARRHEA WITH
BORON POISONING SHOCK AND COMA MAY FOLLOW. F- INGESTION MAY (SEE
EFTS OF OVEREXP)
Explanation of Carcinogenicity:CRYSTALINE SILICA: IARC-2A.
Effects of Overexposure:HLTH HAZ: CAUSE SEVERE BONE CHANGES. SKIN:
IRRITATION POSSIBLE. EYE: IRRITATION POSSIBLE. NOTE: CRYSTALLINE
SILICA PRESENT IN SAND IS CONVERTED TO AMORPHOUS WHEN MELTED INTO
GLASS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INHAL: REMOVE FROM EXPOSURE. GET MD. INGEST: GET MEDICAL
ATTENTION IMMEDIATELY. SKIN: WASH WITH SOAP AND WATER. EYE: FLUSH
WITH PLENTY OF WATER FOR AT LEAST 15 MINUTES.

Extinguishing Media:NOT APPLICABLE.
Fire Fighting Procedures:USE NIOSH/MSHA APPROVED SCBA AND FULL
PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NOT APPLICABLE.

Spill Release Procedures:RECOMMENDED VACUUMING OVER SWEEPING.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:IN GEN, THIS MATL CAN BE TREATED AS A
NUISANCE DUST. HOWEVER, CARE SHOULD BE TAKEN TO EVALUATE THE
AIRBORNE CONC OF THE FLUORIDE ION. (SEE OTHER PREC)
Other Precautions:HNDLG/STOR PREC: HYDROGEN FLUORIDE (HF) AND METAL
OXIDE FUME PRODUCTION IS POSSIBLE WHEN HIGH TEMPERATURES ARE
APPLIED. REMOVE DUST FROM AREA OF EQUIPMENT WHERE HIGH TEMPERATURES
MAY BE APPLIED SUCH A S CUTTING OR WELDING.

Respiratory Protection:NIOSH/MSHA APPROVED RESPIRATOR FOR
FUME/DUST/MISTS.
Ventilation:LOCAL EXHAUST TO MAINTAIN LEVELS BELOW PEL.
Protective Gloves:PROTECTIVE GLOVES RECOMMENDED.
Eye Protection:CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:COVERALLS MAY BE DESIRED WITH DUSTY
CONDITIONS.
Work Hygienic Practices:WASH THOROUGHLY AFTER USE AND BEFORE EATING,
DRINKING, SMOKING OR USING SANITARY FACILITIES .
Supplemental Safety and Health
IT IS UNKNOWN HOW MUCH, IF ANY, THE INDIV COMPONENT OXIDES MAY
DISSOCIATE BY MECH DISTURBANCE, IN BODY FLUIDS OR BY OTHER MEANS.
PRECAUTIONS SHOULD BE TAKEN TO MINIMIZE EXPOS TO DUST OR FUME OF
THIS M ATL. AIR & BIOLOGICAL MONITORING SHOULDBE CONSIDERED IF
EXPOS OF THIS MATL OCCURS.

HCC:N1
Spec Gravity:2.52 MG/CM
Appearance and Odor:ODORLESS WHITE GLASS OR PARTICULATE.

Stability Indicator/Materials to Avoid:YES
NONE SPECIFIED BY MANUFACTURER.
Stability Condition to Avoid:AVOID GENERATING DUSTS.
Hazardous Decomposition Products:METAL OXIDE FUME POSSIBLE.

Waste Disposal Methods:FOLLOW FEDERAL, STATE AND LOCAL 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.