Basic information Description Uses References Safety Related Supplier
Sodium Sulphite Structure

Sodium Sulphite

Chemical Properties

Melting point 500 °C
Density  2.63
refractive index  1,484
storage temp.  Store at +5°C to +30°C.
solubility  H2O: 1 M at 20 °C, clear, colorless
form  Solid
Specific Gravity 2.633
color  White to slightly yellow
PH 9.0-10.5 (25℃, 1M in H2O)
Odor Odorless
PH Range 9.0 - 10.5 at 126 g/l at 25 °C
Water Solubility  23 g/100 mL (20 ºC)
Sensitive  Hygroscopic
Merck  14,8682
Stability Stable. Incompatible with strong acids. Moisture and air sensitive.
CAS DataBase Reference 7757-83-7(CAS DataBase Reference)
NIST Chemistry Reference sodium sulfite(7757-83-7)
EPA Substance Registry System Sodium sulfite (7757-83-7)

Safety Information

Hazard Codes  Xn
Risk Statements  31-36/37/38-22-40-36/38
Safety Statements  24/25-36-26-22
WGK Germany  1
RTECS  WE2150000
3-10
TSCA  Yes
HS Code  28321000
Hazardous Substances Data 7757-83-7(Hazardous Substances Data)
Toxicity LD50 i.v. in mice: 175 mg/kg, Hoppe, Goble, J. Pharmacol. Exp. Ther. 101, 101 (1951)

MSDS

Usage And Synthesis

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