Sodium-Metabisulfite.jpg Sodium-Metabisulfite.jpg

Sodium metabisulfite

CAS Registry Number (CASRN):

7681-57-4 ,

Units of original limits:

mg/m3 ,

Conc dep:

N ,

name:

Sodium metabisulfite ,

formula:

Na2.S2O5 ,

CAS Registry Number (CASRN):

7681-57-4 ,

SAX Number:

SII000 ,

Units of original limits:

mg/m3 ,

Conc dep:

N ,

p to m:

7.76965 ,

HR:

3 ,

specific gravity:

1.4 ,

state at 25 °C:

S ,

Molar mass (g/mol):

190.1 ,

comment

Sodium metabisulfite

Sodium metabisulfite is a white crystalline or powder solid with a slight sulfur odor. Toxic by inhalation . Strongly irritates skin and tissue. Noncombustible, but may decompose to emit toxic oxide fumes of sulfur and sodium when heated to high temperature. A corrosive acid when mixed with water. Used as a food preservative and as a laboratory reagent.

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