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CALCIUM SULFATE (ANHYDROUS) ICSC: 1589
Date of Peer Review: April 2005

Sulfuric acid, calcium salt (1:1)
CAS # 7778-18-9 CaSO4
RTECS # WS6920000 Molecular mass: 136.14
UN #
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE


Inhalation Cough.
Local exhaust or breathing protection.
Fresh air, rest.
Skin
Protective gloves.
Rinse and then wash skin with water and soap.
Eyes Redness.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P1 filter respirator for inert particles. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
EU Classification
UN Classification

EMERGENCY RESPONSE STORAGE

Dry.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
CALCIUM SULFATE (ANHYDROUS) ICSC: 1589
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE HYGROSCOPIC POWDER OR CRYSTALLINE POWDER

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (particulate matter containing no asbestos and <1% crystalline silica) 10 mg/m as TWA; (ACGIH 2005).
MAK: (Respirable fraction) 6 mg/m; (DFG 2004).
INHALATION RISK:
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
May cause mechanical irritation. Ingestion may cause gastrointestinal blockage.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Lungs may be affected by repeated or prolonged exposure to dust particticles if crystalline silica is present.
PHYSICAL PROPERTIES
Melting point (decomposes): 1450C
Density: 2.9 g/cm
Solubility in water, g/100 ml at 20C: 0.2
ENVIRONMENTAL DATA

NOTES
May contain a small amounts of crystalline silica. Health effects apply also to hydrated form. See ICSC 1215 Gypsum.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999