International Chemical Safety Cards

CALCIUM SULFATE (ANHYDROUS) ICSC: 1589
World Health Organization (WHO) International Labour Organization (ILO) United Nations Environmental Programme (UNEP) European Commission National Institute for Occupational Safety and Health (NIOSH)
Sulfuric acid, calcium salt (11)
CaSO4
Molecular mass: 136.14
ICSC #    1589
CAS #     7778-18-9
RTECS # WS6920000
November 26, 2009 Validated
September 20, pdated in PR to bring into line with card 1734
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 one or two glasses of water to drink.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Dry.

SEE IMPORTANT INFORMATION ON BACK
ICSC: 1589 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards

CALCIUM SULFATE (ANHYDROUS) ICSC: 1589
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A
PHYSICAL STATE; APPEARANCE:
 WHITE HYGROSCOPIC POWDER OR CRYSTALLINE POWDER

PHYSICAL DANGERS:

CHEMICAL DANGERS:

OCCUPATIONAL EXPOSURE LIMITS:
 TLV: 10 mg/m³
(Inhalable fraction)
(ACGIH 2009).
MAK: 4 mg/m³ (Inhalable fraction); 1.5 mg/m³ (Respirable fraction);
Pregnancy risk group: C
(DFG 2009).
OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
NIOSH IDLH: N.D. See: IDLH INDEX


ROUTES OF EXPOSURE:

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): 1450°C
Density: 2.9
g/cm³
 Solubility in water, g/100 ml at 20°C: 0.2
(very poor)
ENVIRONMENTAL
DATA

N O T E S
May contain a small amount of crystalline silica. See also ICSC 1215 Gypsum and 1734 Calcium sulfate dihydrate.
ADDITIONAL INFORMATION


ICSC: 1589 CALCIUM SULFATE (ANHYDROUS)
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.