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Sodium Metabisulfite

Sodium Metabisulfite / CAS : 7681-57-4

Appearance White or yellow crystalline powder or small crystals UN 1759
HS 28321000 DG Class 8
Synonyms Natrium Pyrosulfit; Sodium Pyrosulfite; Sodium Disulfite; Disodiumpyrosulphite; Metabisulfitedesodium; Sodiummetabisulphite; Fertisilo; Natrii Disulfis; SMBS; sodıum meta; INS 223; Sodium Metabisulphite
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Properties

Summary

Formula
Na2O5S2
Molecular Mass
190.10700
Exact Mass
189.89800
PSA
124.92000
Logp
0.27220
IUPAC
Sodium metabisulfite
SMILES
[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]

Attribute classification

Matter Classification
inorganic
Category
Inorganic Chemicals > Inorganic Salt
Auxiliary > Textile Auxiliaries
Food(Feed) Additives > Bleaching Agents

Chemical and Physical Properties

Melting Point
150 °C
Density
1.48
Appearance
White or yellow crystalline powder or small crystals

Export information

HS Code
28321000
Export Rebate
0%
UN No.
1759
DG-Class
8
Risk Code
R22-31-41-36/37/38-52
Safety Label
Xn,Xi

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