MALLINCKRODT INC. SCIENCE PRODUCTS DIVISION -- CALCIUM CARBONATE  -- 6810-00-234-8365
<pre>=====================  Product Identification  =====================

Product ID:CALCIUM CARBONATE
MSDS Date:04/06/1989
FSC:6810
NIIN:00-234-8365
=== 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:800-354-2050/314-982-5000
Emergency Phone Num:800-354-2050/314-539-1600
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
Other REC Limits:NONE SPECIFIED
OSHA PEL:15 MG/M3 TOTAL DUST
ACGIH TLV:10 MG/M3

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

Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE- INHALATION: EXCESSIVE
    CONCENTRATIONS OF A NUISANCE DUST MAY CAUSE NUISANCE CONDITION SUCH
    AS COUGHING, SNEEZING & NASAL IRRITATION. INGESTION: NON-TOXIC.
    SKIN: NOT EXPECTED TO BE A HAZARD. EYE: PRESUMED TO CAUSE
    MECHANICAL IRRITATION. CHRONIC- EXCESSIVE ORAL DOSES MAY PRODUCE
    ALKALOSIS.
Effects of Overexposure:INHALATION OF EXCESSIVE CONCENTRATIONS OF A
    NUISANCE DUST MAY CAUSE NUISANCE CONDITION SUCH AS COUGHING,
    SNEEZING & NASAL IRRITATION. INGESTION IS NON-TOXIC. NOT EXPECTED
    TO BE A SKIN HAZARD. PRESUMED  TO CAUSE MECHANICAL IRRITATION OF
    EYES.
Medical Cond Aggravated by Exposure:NO INFORMATION FOUND.

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

First Aid:GET MEDICAL ASSISTANCE FOR ALL CASES OF OVEREXPOSURE.
    INHALATION: REMOVE TO FRESH AIR. EYES: FLUSH WITH WATER FOR 15
    MINUTES HOLDING EYELIDS OPEN. SKIN: WASH WITH SOAP & WATER.
    INGESTION: IF LARGE AMO UNTS WERE SWALLOWED, DRINK WATER &
    CALLPHYSICIAN.

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

Flash Point:NONFLAMMABLE
Extinguishing Media:USE MEDIA APPROPRIATE FOR SURROUNDING FIRE. COOL
    FIRE EXPOSED CONTAIENRS WITH WATER SPRAY
Fire Fighting Procedures:WEAR FULL PROTECTIVE CLOTHING AND
    NIOSH-APPROVED SELF-CONTAINED BREATHING APPARATUS WITH FULL
    FACEPIECE OPERATED IN THE POSITIVE PRESSURE MODE.
Unusual Fire/Explosion Hazard:NOT CONSIDERED TO BE AN EXPLOSION HAZARD.

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

Spill Release Procedures:VENTILATE AREA OF LEAK OR SPILL. CLEAN-UP
    PERSONNEL MAY REQUIRE RESPIRATORY PROTECTION FROM DUST. SWEEP UP
    AND CONTAINERIZE FOR RECLAMATION OR DISPOSAL. VACUUMING OR WET
    SWEEPING MAY BE USED TO AVOID  DUST DISPERSAL.
Neutralizing Agent:NOT APPLICABLE.

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

Handling and Storage Precautions:STORAGE-STORE IN COOL,DRY,VENTILATED
    AREA IN TIGHTLY CLOSED CONTAINER.
Other Precautions:PROTECT CONTAINER AGAINST PHYSICAL DAMAGE. DO NOT
    RAISE DUST. AVOID CONTACT WITH EYES AND SKIN. AVOID BREATHING DUST.
    WASH THOROUGHLY AFTER HANDLING.

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

Respiratory Protection:NONE NORMALLY REQUIRED. IF DUSTS PRESENT, A
    NIOSH/MSHA APPROVED SELF-CONTAINED BREATHING APPARATUS OR A HALF
    MASK CHEMICAL CARTRIDGE RESPIRATOR IS ADVISED.
Ventilation:PROVIDE SUFFICIENT MECHANICAL (GENERAL AND/OR LOCAL
    EXHAUST) VENTILATION TO MAINTAIN EXPOSURE BELOW TLV(S).
Protective Gloves:NEOPRENE
Eye Protection:CHEMICAL SAFETY GOGGLES
Other Protective Equipment:EYE WASH STATION, EMERGENCY SHOWER, NORMAL
    WORK CLOTHING COVERING ARMS AND LEGS. DO NOT WEAR CONTACT LENSES.
Work Hygienic Practices:WASH THOROUGHLY BEFORE EATING, DRINKING,
    SMOKING, OR USING TOILET FACILITIES. WASH CONTAMINATED CLOTHING
    BEFORE REUSE.
Supplemental Safety and Health
MSDS FROM MFR DATED:20 DEC 1984,CONFORMS TO OSHA HAZARD COMMUNICATION
    STANDARD, SPECIFIC GRAVITY: 2.7-2.95.

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

HCC:N1
Melt/Freeze Pt:M.P/F.P Text:1517F,825C
Decomp Temp:Decomp Text:1517F,825C
Spec Gravity:2.7 - 2.95
Solubility in Water:0.001 GM IN 100 ML
Appearance and Odor:FINE WHITE POWDER - ODORLESS

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

Stability Indicator/Materials to Avoid:YES
ACIDS, FLUORINE, MAGNESIUM WITH HYDROGEN
Stability Condition to Avoid:HEAT, OPEN FLAMES AND MOISTURE
Hazardous Decomposition Products:WHEN HEATED TO DECOMPOSITION (825C),
    EMITS CALCIUM OXIDE FUMES AND LIBERATES CARBON DIOXIDE.

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

Waste Disposal Methods:COMPLY WITH ALL LOCAL, STATE AND 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.