International Chemical Safety Cards

AMMONIUM BISULFITE ICSC: 1254

AMMMONIUM BISULFITE
Sulfurous acid, monoammonium salt
Ammonium hydrogen sulfite
H5NO3S/NH4HSO3
Molecular mass: 99.1
CAS # 10192-30-0
RTECS # WT3595000
ICSC # 1254
UN # 2693 (bisulfites, aqueous solution)
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


  • INHALATION

    		• Ventilation (not if powder), local exhaust, or breathing protection.

  • SKIN

    		• Protective gloves.

  • EYES

    		• Safety spectacles.

  • INGESTION

    		• Do not eat, drink, or smoke during work.

    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water (extra personal protection: P2 filter respirator for harmful particles).
    		Separated from strong oxidants, acids, food and feedstuffs. Well closed.
    		Do not transport with food and feedstuffs.
    For aqueous solution:
    UN Hazard Class: 8
    UN Packing Group: III
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 1254 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

    AMMONIUM BISULFITE ICSC: 1254

    I

    M

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    T

    A

    N

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    D

    A

    T

    A
    PHYSICAL STATE; APPEARANCE:
     COLOURLESS TO YELLOW CRYSTALS.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     The substance decomposes on heating or on contact with acids producing toxic fumes including sulfur oxides, nitrogen oxides and ammonia. Reacts violently with oxidants. Attacks many metals in presence of water at high concentration.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV not established.


    		ROUTES OF EXPOSURE:

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

    EFFECTS OF SHORT-TERM EXPOSURE:

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    PHYSICAL
    PROPERTIES
    Decomposes below boiling point at 150°C
    Relative density (water = 1): 2.0
    		 Solubility in water, g/100 ml at 10°C: 267
    ENVIRONMENTAL
    DATA
    N O T E S
    Mainly sold as aqueous solution. Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
    ADDITIONAL INFORMATION


    ICSC: 1254 AMMONIUM BISULFITE
    © 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.