MALLINCKRODT INC. SCIENCE PRODUCTS DIVISION -- CALCIUM CARBONATE  -- 6810-01-097-4735
<pre>=====================  Product Identification  =====================

Product ID:CALCIUM CARBONATE
MSDS Date:04/06/1989
FSC:6810
NIIN:01-097-4735
=== Responsible Party ===
Company Name:MALLINCKRODT INC. SCIENCE PRODUCTS DIVISION
Address:PARIS BYPASS
Box:M
City:PARIS
State:KY
ZIP:40361
Country:US
Info Phone Num:314-982-5000
Emergency Phone Num:314-982-5000
CAGE:62910
=== Contractor Identification ===
Company Name:MALLINCKRODT SPECIALTY CHEMICALS CO
Address:222 RED SCHOOL LANE
Box:City:PHILLIPSBURG
State:NJ
ZIP:08865
Country:US
Phone:908-859-2151
CAGE:62910

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

Ingred Name:CALCIUM CARBONATE
CAS:471-34-1
RTECS #:FF9335000
Fraction by Wt: >99%
Other REC Limits:NONE SPECIFIED
OSHA PEL:15 MG/M3 TDUST
ACGIH TLV:10 MG/M3 TDUST; 9192

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

LD50 LC50 Mixture:NO INFORMATION FOUND
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE: NASAL IRRITATION. CHRONIC:
    ALKALOSIS.
Effects of Overexposure:EYES: IRRITATION. SKIN: NOT EXPECTED TO BE A
    HAZARD. INHALATION: COUGHING, SNEEZING AND NASAL IRRITATION.
    INGESTION: NON-TOXIC.
Medical Cond Aggravated by Exposure:NO INFORMATION FOUND.

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

First Aid:EYES: FLUSH WITH PLENTY OF WATER. IF IRRITATION PERSISTS, SEE
    DOCTOR. SKIN: WASH WITH SOAP AND WATER.IF IRRITATION PERSISTS SEE
    DOCTOR. INHALATION: REMOVE TO FRESH AIR. GET MEDICAL ATTENTION.
    INGESTIO N: IF LARGE AMOUNT SWALLOWED DRINK LARGE AMOUNT OF WATER,
    SEE DOCTOR.

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

Flash Point:NONE
Extinguishing Media:NON-FLAMMABLE. USE EXTINGUISHING MEDIA APPROPIATE
    FOR SURROUNDING FIRE.
Fire Fighting Procedures:WEAR FIRE FIGHTING PROTECTIVE EQUIPMENT AND A
    FULL FACED SELF CONTAINED BREATHING APPARATUS. COOL FIRE EXPOSED
    CONTAINERS WITH WATER SPRAY.
Unusual Fire/Explosion Hazard:COMBUSTION OR HEAT OF FIRE MAY PRODUCE
    HAZARDOUS DECOMPOSITION PRODUCTS AND VAPORS.

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

Spill Release Procedures:CLEAN-UP PERSONNEL REQUIRE PROTECTIVE CLOTHING
    & RESPIRATORY PROTECTION FROM DUST. COLLECT BY SWEEPING, MOPPING OR
    WET VACUUMING AS APPROPRIATE. COLLECTED WASTE MAY BE TRANSFERRED TO
    A CLOSED METAL CO NTAINER. AVOID DUSTING CONDITIONS.

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

Handling and Storage Precautions:KEEP IN TIGHTLY CLOSED CONTAINERS AT
    COOL, DRY, VENTILATED PLACE. PROTECT AGAINST PHYSICAL DAMAGE.
Other Precautions:AVOID PROLONGED EXPOSURE TO DUST. PRACTICE GOOD
    INDUSTRIAL AND PERSONAL HYGIENE AND SFETY PROCEDURES BY AVOIDING
    ALL UNNECESSARY EXPOSURE TO CHEMICAL SUBSTANCES. ENSURE PROMPT
    REMOVAL FROM SKIN, EYES  AND CLOTHING.

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

Respiratory Protection:NONE NORMALLY REQUIRED. USE NIOSH/MSHA-APPROVED
    RESPIRATOR WITH DUST CARTRIDGE IF TLV IS EXCEEDED.
Ventilation:LOCAL AND/OR GENERAL EXHAUST TO MAINTAIN EXPOSURE LEVEL
    BELOW TLV.
Protective Gloves:IMPERVIOUS
Eye Protection:SAFETY GLASSES W/SIDE SHIELD OR GOGGLES.
Other Protective Equipment:EMERGENCY EYE LAVAGE AND SHOWER.  LAB COAT,
    APRON OR COVERALLS.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING. AVOID
    GENERATING DUST.  CONTACT LENSES SHOULD NOT BE WORN.
Supplemental Safety and Health
NONE.

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

HCC:N1
Melt/Freeze Pt:M.P/F.P Text:825C DECOMP
Decomp Temp:Decomp Text:1517F,825C
Spec Gravity:2.7-2.95
Solubility in Water:NEGLIGIBLE
Appearance and Odor:FINE WHITE POWDER, ODORLESS

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

Stability Indicator/Materials to Avoid:YES
ACIDS, FLOURINE, MAGNESIUM WITH HYDROGEN
Stability Condition to Avoid:HIGH HEAT, OPEN FLAMES AND OTHER SOURCES
    OF IGNITION
Hazardous Decomposition Products:CALCIUM OXIDE FUMES AND CARBON DIOXIDE
    WHEN HEATED TO DECOMPOSITION.

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

Waste Disposal Methods:COLLECTED WASTE MAY BE TRANSFERRED TO A CLOSED,
    PREFERABLY METAL, CONTAINER AND SENT TO A RCRA-APPROVED WASTE
    DISPOSAL FACILITY. ENSURE COMPLIANCE WITH LOCAL, STATE & FEDERAL
    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.