Sodium Metabisulfite

Product Detail

Sodium Metabisulfite

Sodium Metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant and preservative agent.






Introduction

Appearance:White crystalline powder

Molecular formula: Na2S2O5

Molecular weight: 190.09

CAS No.: 7681-57-4              

HS No.: 28321000.00

FEMA No.: 3025

EINECS No.:231-673-0

Function :preservative,Bleaching agent,Antiseptic,Inhibitor.

 

Technical Specification

Tests	Specification
Appearance	White free-flowing Crystal Powder
Purity (Na2S2O5)	97% min
Iron (Fe)	0.003% min
Heavy Metal (Pb)	5 ppm max
Arsenic (As)	1 ppm max
Water Insoluble	0.05% max
PH Value	4.0-4.6




Application

It is used widely as an acidifier, as a flavoring and chelating agent.







Packing

25kgs/PP PE BAG

 

Storage and Transportation

kept in a light-proof,well-colsed,dry and cool place.