ICSC 1215 - GYPSUM (MINERAL)

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GYPSUM (MINERAL)	ICSC: 1215 (November 2009)
Calcium sulfate dihydrate

CAS #: 13397-24-5

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin			Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.	According to UN GHS Criteria Transportation UN Classification
STORAGE

PACKAGING

GYPSUM (MINERAL)

ICSC: 1215

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE CRYSTALLINE POWDER OR LUMPS. Physical dangers Chemical dangers	Formula: CaSO₄. 2H₂O Molecular mass: 172.2 Melting point: 100-150°C See Notes. Density: 2.3 g/cm³ Solubility in water, g/100ml at 25°C: 0.24 (very poor)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALLINE POWDER OR LUMPS.

Physical dangers

Chemical dangers

Formula: CaSO₄. 2H₂O
Molecular mass: 172.2
Melting point: 100-150°C
See Notes.
Density: 2.3 g/cm³
Solubility in water, g/100ml at 25°C: 0.24 (very poor)

EXPOSURE & HEALTH EFFECTS
Routes of exposure Effects of short-term exposure May cause mechanical irritation.	Inhalation risk A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered. Effects of long-term or repeated exposure Lungs may be affected by repeated or prolongated exposure to dust particles.

EXPOSURE & HEALTH EFFECTS

Routes of exposure

Effects of short-term exposure
May cause mechanical irritation.

Inhalation risk
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered.

Effects of long-term or repeated exposure
Lungs may be affected by repeated or prolongated exposure to dust particles.

OCCUPATIONAL EXPOSURE LIMITS
TLV: (inhalable fraction): 10 mg/m³, as TWA. MAK: (inhalable fraction): 4 mg/m³; pregnancy risk group: C. MAK: (respirable fraction): 1.5 mg/m³; pregnancy risk group: C

ENVIRONMENT

NOTES
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 ICSC 1589 and ICSC 1734.

ADDITIONAL INFORMATION

EC Classification

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