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Sodium Metabisulfite
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Product: Views:63Sodium Metabisulfite 
Unit price: Negotiable
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Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-07-24 17:58
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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.


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