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NIOSH

SODIUM BISULFITE 38-40 % AQUEOUS SOLUTION

ICSC: 1134

Sodium hydrogensulfite solution
Sodium metabisulfite solution
NaHO3S
ICSC # 1134 		CAS # 7631-90-5
RTECS # VZ2000000
UN # 2693
EC # 016-064-00-8
April 06, 2006 Validated

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
Ventilation.
Fresh air, rest.
•SKIN
Protective gloves.
Rinse skin with plenty of water or shower.
•EYES
Safety spectacles
First rinse with plenty of water (remove contact lenses if easily possible).
•INGESTION Abdominal pain. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Collect leaking liquid in covered plastic containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Separated from acids and strong oxidants, food and feedstuffs. Well closed.
Do not transport with food and feedstuffs.
Note: B
Xn symbol
R: 22-31
S: 2-25-46
UN Hazard Class: 8
UN Packing Group: III
ICSC: 1134 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.

SODIUM BISULFITE 38-40 % AQUEOUS SOLUTION

ICSC: 1134

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS TO YELLOW LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating and on contact with acids , producing sulfur oxides. Reacts with acids and strong oxidants, causing fire and explosion hazard. The substance is a weak acid. Attacks metal.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 mg/m3, as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2005).
MAK not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by ingestion

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration of this substance in the air is reached.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance may cause asthma-like reactions or urticaria in sensitive persons if ingested.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 104°C
Melting point: <0°C
Relative density (water = 1): 1.34
Solubility in water: (miscible)

ENVIRONMENTAL
DATA

This substance may be hazardous in the environment; special attention should be given to water quality.

N O T E S

Transport Emergency Card: TEC (R)-80GC1-II+III

ADDITIONAL INFORMATION



ICSC: 1134 SODIUM BISULFITE 38-40 % AQUEOUS SOLUTION
(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.
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