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CALCIUM SULFATE (ANHYDROUS)

ICSC: 1589

Sulfuric acid, calcium salt (11)
CaSO4
Molecular mass: 136.14
ICSC # 1589 		CAS # 7778-18-9
RTECS # WS6920000
April 20, 2005 Validated

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

STORAGE

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.
Dry.

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.

CALCIUM SULFATE (ANHYDROUS)

ICSC: 1589

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
WHITE HYGROSCOPIC POWDER OR CRYSTALLINE POWDER

PHYSICAL DANGERS:


CHEMICAL DANGERS:


OCCUPATIONAL EXPOSURE LIMITS:
TLV: (particulate matter containing no asbestos and <1% crystalline silica) 10 mg/m3 as TWA; (ACGIH 2005).
MAK: (Respirable fraction) 6 mg/m3; (DFG 2004).
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

ENVIRONMENTAL
DATA


N O T E S

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

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.
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