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Sodium Hydrogen Sulfite 58.5% AR Grade Reagent

Cas Number:7631-90-5
Formula: NaHSO3
Molar Mass:104.06
EC Number:231-548-0

Quantity:
  • AR
  • LABOR
  • 224202129

Sodium Hydrogen Sulfite 58.5% AR Grade Reagent


Cas Number:7631-90-5

Formula: NaHSO3

Molar Mass:104.06

EC Number:231-548-0


Physicochemical properties:

White crystalline powder. There is a smell of sulfur dioxide. Unpleasant taste. Part of the sulphur dioxide is lost in the exposed air and oxidized to sulfate. It is dissolved in 3.5 parts of cold water, 2 parts of boiling water, and about 70 parts of ethanol, and the aqueous solution is acidic.The relative density is 1.48. Low toxicity, half lethal dose (rat, oral) 2000mg/kg. Irritating.


Usage:

Reducing agent. Preservative. Disinfectant. Bleach.


Packing:

500g/25kg






Item of Analysis

Standard

Assay(as SO2),%

58.5 min

Transparency of solution

to pass test

Insoluble in water,%

0.005 max

Chloride(Cl),%  

0.01 max

Iron(Fe),%

0.001 max

Arsenic(As),%

0.0001 max

Heavy metals(as Pb),%

0.001 max


Symbol 

Signal word 

Warning

Hazard statement

H302

Precautionary statements—Prevention

P264


P270

Precautionary statements—Response

P301+P312+P330

UN No.

No Information



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