CORNING GLASS WORKS -- MACOR MACHINABLE GLASS CERAMIC 9658 
MATERIAL SAFETY DATA SHEET
NSN: 562000N014563
Manufacturer's CAGE: 47075 
Part No. Indicator: A 
Part Number/Trade Name: MACOR MACHINABLE GLASS CERAMIC 9658 
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                            General Information
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Company's Name: CORNING GLASS WORKS 
Company's Street: HOUGHTON PK EB-2 
Company's City: CORNING 
Company's State: NY 
Company's Country: US 
Company's Zip Code: 14831 
Company's Emerg Ph #: 607-974-8002 
Company's Info Ph #: 607-974-8835 
Record No. For Safety Entry: 001 
Tot Safety Entries This Stk#: 001 
Status: SMJ 
Date MSDS Prepared: 01MAR90 
Safety Data Review Date: 03APR91 
MSDS Serial Number: BKNYH 
Hazard Characteristic Code: N1 
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                     Ingredients/Identity Information
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Proprietary: NO 
Ingredient: SILICA, CRYSTALLINE - QUARTZ
Ingredient Sequence Number: 01 
Percent: 40-50 
NIOSH (RTECS) Number: VV7330000 
CAS Number: 14808-60-7 
OSHA PEL: SEE TABLE Z3 
ACGIH TLV: 0.1 MG/M3 RDUST;9293 
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Proprietary: NO 
Ingredient: ALPHA-ALUMINA (ALUMINUM OXIDE) (EPA LISTS ONLY FIBROUS FORMS)
(SARA III)
Ingredient Sequence Number: 02 
Percent: 10-25 
NIOSH (RTECS) Number: BD1200000 
CAS Number: 1344-28-1 
OSHA PEL: 15 MG/M3 TDUST 
ACGIH TLV: 10 MG/M3 TDUST; 9293 
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Proprietary: NO 
Ingredient: BORON OXIDE
Ingredient Sequence Number: 03 
Percent: 5-10 
NIOSH (RTECS) Number: ED7900000 
CAS Number: 1303-86-2 
OSHA PEL: 15 MG/M3 TDUST 
ACGIH TLV: 10 MG/M3; 9293 
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Proprietary: NO 
Ingredient: POTASSIUM OXIDE
Ingredient Sequence Number: 04 
Percent: 5-10 
NIOSH (RTECS) Number: TT3790000 
CAS Number: 12136-56-7 
OSHA PEL: NOT APPLICABLE 
ACGIH TLV: NOT APPLICABLE 
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Proprietary: NO 
Ingredient: MAGNESIUM OXIDE
Ingredient Sequence Number: 05 
Percent: 10-25 
NIOSH (RTECS) Number: OM3850000 
CAS Number: 1309-48-4 
OSHA PEL: 15 MG/M3 PARTICULATE 
ACGIH TLV: 10 MG/M3;TDUST; 9293 
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Proprietary: NO 
Ingredient: FLUORIDE (AS F)
Ingredient Sequence Number: 06 
Percent: 5-10 
NIOSH (RTECS) Number: LM6290000 
CAS Number: 16984-48-8 
OSHA PEL: 2.5 MG/M3 
ACGIH TLV: 2.5 MG/M3 
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                     Physical/Chemical Characteristics
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Appearance And Odor: ODORLESS WHITE GLASS OR PARTICULATE.
Boiling Point: N/A 
Melting Point: N/A 
Vapor Pressure (MM Hg/70 F): N/A 
Vapor Density (Air=1): N/A 
Specific Gravity: 2.52 MG/CM 
Evaporation Rate And Ref: NOT APPLICABLE 
Solubility In Water: NOT APPLICABLE 
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                      Fire and Explosion Hazard Data
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Flash Point: NOT APPLICABLE 
Lower Explosive Limit: N/A 
Upper Explosive Limit: N/A 
Extinguishing Media: NOT APPLICABLE.
Special Fire Fighting Proc: USE NIOSH/MSHA APPROVED SCBA AND FULL
PROTECTIVE EQUIPMENT (FP N).
Unusual Fire And Expl Hazrds: NOT APPLICABLE.
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                              Reactivity Data
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Stability: YES 
Cond To Avoid (Stability): AVOID GENERATING DUSTS.
Materials To Avoid: NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomp Products: METAL OXIDE FUME POSSIBLE.
Hazardous Poly Occur: NO 
Conditions To Avoid (Poly): NOT RELEVANT
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                            Health Hazard Data
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LD50-LC50 Mixture: NONE SPECIFIED BY MANUFACTURER. 
Route Of Entry - Inhalation: YES 
Route Of Entry - Skin: NO 
Route Of Entry - Ingestion: NO 
Health Haz 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 SEVERE NAUSEA, VOMITING AND DIARRHEA WITH BORON POISONING SHOCK AND
COMA MAY FOLLOW. F- INGESTION MAY (SEE EFTS OF OVEREXP)
Carcinogenicity - NTP: NO 
Carcinogenicity - IARC: YES 
Carcinogenicity - OSHA: NO 
Explanation Carcinogenicity: CRYSTALINE SILICA: IARC-2A.
IRRITATION POSSIBLE. EYE: IRRITATION POSSIBLE. NOTE: CRYSTALLINE SILICA
PRESENT IN SAND IS CONVERTED TO AMORPHOUS WHEN MELTED INTO GLASS.
Med Cond Aggravated By Exp: NONE SPECIFIED BY MANUFACTURER.
Emergency/First Aid Proc: 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.
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                   Precautions for Safe Handling and Use
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Steps If Matl Released/Spill: RECOMMENDED VACUUMING OVER SWEEPING.
Neutralizing Agent: NONE SPECIFIED BY MANUFACTURER.
Waste Disposal Method: FOLLOW FEDERAL, STATE AND LOCAL REGULATIONS.
Precautions-Handling/Storing: 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 AS
CUTTING OR WELDING.
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                             Control Measures
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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 (FP N). 
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 (FP N).
Suppl. Safety & Health Data: 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 MATL. AIR & BIOLOGICAL MONITORING SHOULD BE CONSIDERED IF EXPOS OF
THIS MATL OCCURS.
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                            Transportation Data
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Trans Data Review Date:   91259 
DOT PSN Code: ZZZ 
DOT Proper Shipping Name: NOT REGULATED BY THIS MODE OF TRANSPORTATION
IMO PSN Code: ZZZ 
IMO Proper Shipping Name: NOT REGULATED FOR THIS MODE OF TRANSPORTATION
IATA PSN Code: ZZZ 
IATA Proper Shipping Name: NOT REGULATED BY THIS MODE OF TRANSPORTATION
AFI PSN Code: ZZZ 
AFI Prop. Shipping Name: NOT REGULATED BY THIS MODE OF TRANSPORTATION
Additional Trans Data: NOT REGULATED FOR TRANSPORTATION
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                               Disposal Data
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                                Label Data
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Label Required: YES 
Technical Review Date: 10JUN91 
Label Date: 10JUN91 
Label Status: G 
Common Name: MACOR MACHINABLE GLASS CERAMIC 9658 
Chronic Hazard: YES 
Signal Word: WARNING! 
Acute Health Hazard-Slight: X 
Contact Hazard-Moderate: X 
Fire Hazard-None: X 
Reactivity Hazard-None: X 
Special Hazard Precautions: ACUTE: MAY CAUSE UPPER RESPIRATORY TRACT, SKIN
AND EYE IRRITATION. LARGE DOSES OF F AND BORON CAN CAUSE SEVERE NAUSEA,
VOMITING AND DIARRHEA. F INGESTION MAY CAUSE SEVERE BONE CHANGES. AVOID
CONTACT WITH EYES, SKIN AND CLOTHING. WASH THOROUGHLY AFTER HANDLING. AVOID
BREATHING DUST. KEEP CONTAINER CLOSED. USE WITH ADEQUATE VENTILATION.
CHRONIC: POSSIBLE CANCER HAZARD. MAY CAUSE PNEUMOCONIOSIS EFFECT.
Protect Eye: Y 
Protect Skin: Y 
Protect Respiratory: Y 
Label Name: CORNING GLASS WORKS 
Label Street: HOUGHTON PK EB-2 
Label City: CORNING 
Label State: NY 
Label Zip Code: 14831 
Label Country: US 
Label Emergency Number: 607-974-8002