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Sodium bisulfite

Synonyms & Trade Names
Monosodium salt of sulfurous acid, Sodium acid bisulfite, Sodium bisulphite, Sodium hydrogen sulfite
CAS No.
7631-90-5
RTECS No.
VZ2000000
DOT ID & Guide
2693 154 (solution)
Formula
NaHSO3
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: TWA 5 mg/m3
OSHA PEL
†: none
Measurement Methods

NIOSH 0500
See: NMAM or OSHA Methods
Physical Description
White crystals or powder with a slight odor of sulfur dioxide.
MW:
104.1
BP:
Decomposes		 MLT: Decomposes
Sol:
29%
VP:
?
IP:
NA
Sp.Gr:
1.48
Fl.P:
NA
UEL:
NA
LEL:
NA
Noncombustible Solid
Incompatibilities & Reactivities
Heat (decomposes) [Note: Slowly oxidized to the sulfate on exposure to air.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, mucous membrane
Target Organs
Eyes, skin, respiratory system
Personal Protection/Sanitation
(See protection codes)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
First Aid
(See procedures)
Eye: Irrigate immediately

Breathing: Fresh air
Swallow: Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 1134
 

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