International Chemical Safety Cards

GYPSUM (MINERAL) ICSC: 1215
World Health Organization (WHO) International Labour Organization (ILO) United Nations Environmental Programme (UNEP) European Commission National Institute for Occupational Safety and Health (NIOSH)
Calcium sulfate dihydrate
CaSO4 • 2H2O
Molecular mass: 172.2
ICSC #    1215
CAS #     13397-24-5
RTECS # MG2360000
November 26, 2009 Validated
September 20, pdated in PR meeting to bring into line with 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

Rinse and then wash skin with water and soap.
 •EYES Redness. Pain.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
 •INGESTION
Do not eat, drink, or smoke during work.
Rinse mouth.
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.


SEE IMPORTANT INFORMATION ON BACK
ICSC: 1215 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

GYPSUM (MINERAL) ICSC: 1215
I

M

P

O

R

T

A

N

T


D

A

T

A
PHYSICAL STATE; APPEARANCE:
 WHITE CRYSTALLINE POWDER OR LUMPS .

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, especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
 May cause mechanical irritation.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
 Lungs may be affected by repeated or prolonged exposure to dust particles especially if crystalline silica is present .
PHYSICAL
PROPERTIES
Melting point: 100-150°C
(See Notes)
Density: 2.3
g/cm³
 Solubility in water, g/100 ml at 25°C: 0.24
(very poor)
ENVIRONMENTAL
DATA

N O T E S
Gypsum is the natural form of the product and may contain crystalline silica. The apparent melting point caused by loss of crystal water is given. See also ICSC 1589 Calcium sulfate anhydrous and 1734 Calcium sulfate dihydrate.
ADDITIONAL INFORMATION


ICSC: 1215 GYPSUM (MINERAL)
(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.