Factory Supply Food Grade Na2s2o5 Sodium Metabisulphite Smbs Sodium Metabisulfite for Preservative

• CAS No.: 7681-57-4
• Formula: Na2s2o5
• EINECS: 231-673-0
• Certification: CCIC, CIQ, RoHS, ISO
• Purity: ≥99%
• Type: Sodium Metabisulfite
• Model NO.: sodium metabisulfite
• Appearance: Powder
• Grade Standard: Food Grade
• Usage: Flavoring and Chelating Agent
• Other Names: Sodium Pyrosulfite
• Color: White to Slightly Yellow Powder
• Transport Package: PP Bag
• Specification: 25kg
• Trademark: Sinowin
• Origin: Henan
• Production Capacity: 50000 Mt/Month

Product Description

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.