International Chemical Safety Cards

GYPSUM ICSC: 1215

GYPSUM
Calcium sulfate dihydrate
CaSO4.2H2O
Molecular mass: 172.2
CAS # 13397-24-5
RTECS # MG2360000
ICSC # 1215
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible.

In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

  • INHALATION
    		• Cough. Sore throat.
    		Local exhaust or breathing protection.
    		Fresh air, rest.
  • SKIN
    		• Redness.


  • EYES
    		• Redness.
    		Safety spectacles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION



    • SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water (extra personal protection: P1 filter respirator for inert particles).


    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 © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    GYPSUM ICSC: 1215

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    PHYSICAL STATE; APPEARANCE:
     ODOURLESS WHITE CRYSTALLINE POWDER.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: ppm; 10 mg/m3 (as TWA) (ACGIH 1993-1994).
    MAK: ppm; 6 mg/m3 (1991).
    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: No data


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation of its aerosol.

    INHALATION RISK:
     Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly especially if powdered.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance irritates the eyes and the respiratory tract.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     The substance may have effects on the eyes and respiratory tract , resulting in conjunctivitis, rhinitis, laryngitis, pharyngitis and impaired sense of smell and taste.
    PHYSICAL
    PROPERTIES
    Melting point: 100-150°C (see Notes)°C
    Relative density (water = 1): 2.3
    		 Solubility in water, g/100 ml at 25°C: 0.24
    ENVIRONMENTAL
    DATA
    N O T E S
    May contain small amounts of crystalline silica. The apparent melting point caused by loss of crystal water is given.
    ADDITIONAL INFORMATION


    ICSC: 1215 GYPSUM
    © IPCS, CEC, 1993
    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 IDLH values.