International Chemical Safety Cards

AMMMONIUM BISULFITE

ICSC: 1254

Sulfurous acid, monoammonium salt
Ammonium hydrogen sulfite
H₅NO₃S/NH₄HSO₃
Molecular mass: 99.1

ICSC #    1254
CAS #     10192-30-0
RTECS # WT3595000
UN #        2693 (bisulfites, aqueous solution)
March 15, 1995 Peer reviewed

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.
R:
S:
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 (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

AMMMONIUM BISULFITE

ICSC: 1254

I

M

P

O

R

T

A

N

T

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:
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	AMMMONIUM BISULFITE
(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.