food preservation of Sodium Metabisulfite

Sodium Metabisulphite Food preservation Professional Factory Supply Competitive Price level 80% for overseas market

♦Sodium Metabisulfite

Purity of Na2S2O5: 96.5% MinPurity of SO2: 65% Min

Appearance: White to white yellow crystal powderMolecular Formular: Na2S2O5 HS Code: 28321000.00CAS No.: 7681-57-4

♦Quality Standard: GB1893-86 

Test Item	Standard	Typical test Result	Individual Result
Appearance	White or light yellow crystalline powder	White or light yellow crystalline powder	conform
Purity(Na2S2O5%)	≥96.5%	97.2%	conform
SO2	≥65%	65.2%	conform
Fe	≤0.005%	0.0028%	conform
Water insoluble	≤0.05%	0.012%	conform
Heavy metal (Pb)	≤0.001%	<0.0005%	conform
As	≤0.0002%	<0.0001%	conform
PH	4.0-4.6	4.3	conform

♦Packing Type ( all of the packabe below mentioned are both available)

1. 25kg pp bag

2. 1000kg big bag

3. 1075kg big bag

4. 1100kg big bag

5. 1200kg big bag

6. 1250kg big bag

 ♦Application: - Mining Industry: Mining reagents to mineral processors

- Medicine industry: Used for manufacturing trichloromethane, sulphetrone and benzaldohyde.- Rubber industry: Used as coagulative agent.- Dye-industry: Used as dechlorination agent and cotton boiling-off agent for bleached cotton.- Leather industry: It can make leather soft, well-developed, tough water proof,

- wear-ability Chemical industry: Used for manufacturing hydrochloride hydroxylamine and etc.- Preservation and sterilization agent for food industries; Sterilization and antisepsis of beverage.

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food preservation of Sodium Metabisulfite