MARYLAND REFRACTORIES CO -- HIGH DUTY GROG  -- 9350-00N075421
<pre>=====================  Product Identification  =====================

Product ID:HIGH DUTY GROG
MSDS Date:01/01/1996
FSC:9350
NIIN:00N075421
=== Responsible Party ===
Company Name:MARYLAND REFRACTORIES CO
Address:SALISBURY RD
Box:267
City:IRONDALE
State:OH
ZIP:43932
Country:US
Info Phone Num:412-269-9633
Emergency Phone Num:216-532-9845
CAGE:JO466
=== Contractor Identification ===
Company Name:MARYLAND REFRACTORIES CO
Address:SALISBURY RD
Box:267
City:IRONDALE
State:OH
ZIP:43932
Country:US
Phone:800-228-4672
CAGE:JO466

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

Ingred Name:SILICA, CRYSTALLINE - CRISTOBALITE; (SILICA) (AND
    INGREDIENT 2)
CAS:14464-46-1
RTECS #:VV7325000
Fraction by Wt: >50%
OSHA PEL:SEE TABLE Z-3
ACGIH TLV:0.05 MG/M3 RDUST

Ingred Name:SILICA, CRYSTALLINE - TRIDYMITE; (SILICA)
CAS:15468-32-3
RTECS #:VV7335000
Fraction by Wt: >50%
OSHA PEL:SEE TABLE Z-3
ACGIH TLV:0.05 MG/M3 RDUST

Ingred Name:ALUMINA (AS DUST); (ALUMINA) (SOME OF THIS AND INGREDIENTS
    1 AND 2 COMBINE TO FORM INGREDIENT 4)
Fraction by Wt: >35%
OSHA PEL:N/K 
ACGIH TLV:N/K 

Ingred Name:FIRE CLAY
OSHA PEL:N/K 
ACGIH TLV:N/K 

Ingred Name:IRON OXIDE
CAS:1309-38-2
RTECS #:OM4800000
Fraction by Wt: <2%
OSHA PEL:N/K 
ACGIH TLV:N/K 

Ingred Name:TITANIA
Fraction by Wt: <2%
OSHA PEL:N/K 
ACGIH TLV:N/K 

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

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:YES    IARC:YES	  OSHA:NO
Health Hazards Acute and Chronic:SILICOSIS; HAZ ASSOC W/CRYSTALLINE
    SILICA OCCURS WHEN DUST IS INHALED & DEPOSITED IN SM AIR PASSAGES
    OF LUNGS. LUNG TISS REACTS BY FORMING FIBROUS SCAR TISS AROUND DUST
    PARTICLES. SUCH SCAR TISS PVNTS  EASY INTERCHANGE OF OXYG & CARBON
    DIOXIDE IN LUNGS. IN ADDN, SCAR TISS DOES NOT STRETCH AS EASILY
    (EFTS OF OVEREXP)
Explanation of Carcinogenicity:SILICA, CRYSTALLINE-CRISTOBALITE &
    TRIDYMITE:IARC MONO, SUPP, VOL 7, PG 341, 1987:GROUP 2A. NTP 7TH
    ANNUAL RPT (SUPDAT)
Effects of Overexposure:HLTH HAZS:AS HLTHY TISS. LONG-TERM EXPOS TO
    AIRBORNE DUST IN EXCESS OF PELS W/OUT PROPER RESP PROT MAY CREATE
    CANCER RISKS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:INGEST:CALL MD IMMEDIATELY . INHAL:REMOVE TO FRESH AIR.
    SUPPORT BREATHING (GIVE O*2/ARTF RESP) . EYES:IMMEDIATELY FLUSH
    W/POTABLE WATER FOR A MINIMUM OF 15 MINUTES, SEEK ASSISTANCE FROM
    MD	. SKIN:FLUSH W/COPIOUS AMOUNTS OF WATER. CALL MD .

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

Extinguishing Media:MEDIA SUITABLE FOR SURROUNDING FIRE . THIS PRODUCT
    WILL NOT SUPPORT COMBUSTION AND MAY BE USED AS AN EXTING MEDIA.
Fire Fighting Procedures:WEAR NIOSH APPROVED SCBA & FULL PROTECTIVE
    EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE SPECIFIED BY MANUFACTURER.

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

Spill Release Procedures:SPILLS AND LEAKS SHOULD BE CLEANED UP AND
    DISPOSED OF BY A PROCEDURE THAT WILL ELIMINATE THE GENERATION OF
    RESPIRABLE DUST. THIS CAN BE ACCOMPLISHED BY DAMPENING THE MATERIAL
    WITH WATER.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:PROPER VENTILATION AND BREATHING
    PROTECTION SHOULD BE USED IN DUSTY AREAS.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.

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

Respiratory Protection:NIOSH APPROVED RESPIRATORS WITH A MINIMUM RATING
    EQUAL TO THE TLV SHOULD BE WORN WHEN EXPOSURES EXCEED THE TLV.
Ventilation:LOCAL EXHAUST AND DUST COLLECTION SHOULD BE MAINTAINED TO
    MAINTAIN EXPOSURE BELOW TLV.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS .
Other Protective Equipment:ANSI APPROVED EMERGENCY EYE WASH AND DELUGE
    SHOWER .
Work Hygienic Practices:CLOTHING SHOULD BE CLEANED IN A MATTER THAT
    AVOIDS THE GENERATION OF RESPIRABLE DUST.
Supplemental Safety and Health
EXPLAN OF CARCIN:ON CARCINOGENS, 1994:ANTICIPATED TO BE CARCINOGEN.

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

Appearance and Odor:BUFF COLORED GRANULAR PRODUCT; ODORLESS.

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

Stability Indicator/Materials to Avoid:YES
NONE SPECIFIED BY MANUFACTURER.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:NONE.

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

Waste Disposal Methods:DISPOSAL MUST BE I/A/W FEDERAL, STATE & LOCAL
    REGULATIONS .

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