SIGMA CHEMICAL CO -- CALCIUM SULFATE DIHYDRATE, 21244  -- 6810-00N069827
<pre>=====================  Product Identification  =====================

Product ID:CALCIUM SULFATE DIHYDRATE, 21244
MSDS Date:10/01/1994
FSC:6810
NIIN:00N069827
=== Responsible Party ===
Company Name:SIGMA CHEMICAL CO
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Info Phone Num:314-771-5765
Emergency Phone Num:516-467-3535
CAGE:21076
=== Contractor Identification ===
Company Name:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Phone:314-771-5765
CAGE:21076

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

Ingred Name:CALCIUM (II) SULFATE, DIHYDRATE (1:1:2)
CAS:10101-41-4
RTECS #:EW4150000
OSHA PEL:15 MG/M3 TDUST
ACGIH TLV:10 MG/M3 TDUST

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

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE:MAY BE HARMFUL IF INHALED AND
    SWALLOWED. MAY CAUSE IRRITATION. MATERIAL MAY BE IRRITATING TO
    MUCOUS MEMBRANES AND UPPER RESPIRATORY TRACT. MAY CAUSE SKIN
    IRRITATION. TO THE BEST OF MFR'S KNOWLED GE, THE CHEM, PHYSICAL &
    TOX PROPERTIESHAVE NOT BEEN THORO INVESTIGATED.
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:EYES:IMMEDIATELY FLUSH WITH COPIOUS AMOUNTS OF WATER FOR AT
    LEAST 15 MINUTES. SKIN:IMMEDIATELY WASH WITH SOAP AND COPIOUS
    AMOUNTS OF WATER. WASH CONTAMINATED CLOTHING BEFORE REUSE.
    INHALATION:REMOVE T O FRESH AIR. IF NOT BREATHING, GIVE ARTIFICIAL
    RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN. INGESTION:WASH
    OUT MOUTH WITH WATER PROVIDED PERSON IS CONSCIOUS. CALL A
    PHYSICIAN.

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

Extinguishing Media:NONCOMBUSTIBLE. USE EXTINGUISHING MEDIA APPROPRIATE
    TO SURROUNDING FIRE CONDITIONS.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA & FULL
    PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE SPECIFIED BY MANUFACTURER.

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

Spill Release Procedures:WEAR NIOSH/MSHA APPROVED RESPIRATOR, CHEMICAL
    SAFETY GOGGLES, RUBBER BOOTS AND HEAVY RUBBER GLOVES. SWEEP UP,
    PLACE IN A BAG AND HOLD FOR WASTE DISPOSAL. AVOID RAISING DUST.
    VENTILATE AREA AND WASH SP ILL SITE AFTER MATERIAL PICKUP IS
    COMPLETE.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:THE CONTACT OF CALCIUM SULFATE WITH
    DIAZOMETHANE VAPOR RESULTS IN EXOTHERM AND MAY LEAD TO DETONATION.
    AVOID INHALATION.
Other Precautions:AVOID CONTACT WITH EYES, SKIN AND CLOTHING. AVOID
    PROLONGED OR REPEATED EXPOSURE. KEEP TIGHTLY CLOSED. HYGROSCOPIC.
    STORE IN A COOL, DRY PLACE.

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

Respiratory Protection:NIOSH/MSHA APPROVED RESPIRATOR.
Ventilation:MECHANICAL EXHAUST REQUIRED.
Protective Gloves:COMPATIBLE CHEMICAL-RESISTANT GLOVES.
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS .
Other Protective Equipment:ANSI APPROVED EMERGENCY EYE WASH AND DELUGE
    SHOWER .
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
NONE SPECIFIED BY MANUFACTURER.

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

Spec Gravity:2.320
Appearance and Odor:WHITE POWDER.

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

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS. PROTECT FROM MOISTURE.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:NONE SPECIFIED BY MANUFACTURER.

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

Waste Disposal Methods:BURY IN A LANDFILL SITE APPROVED FOR THE
    DISPOSAL OF CHEMICAL AND HAZARDOUS WASTES. OBSERVE ALL FEDERAL,
    STATE AND LOCAL ENVIRONMENTAL 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.