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Sodium Metabisulfite Food Grade Sodium Metabisulphite

Name: Sodium Metabisulfite Food Grade Sodium Metabisulphite
Brand: ChoiceChem
SKU: 138326113

US$ 260 - 275 MOQ: 1 Metric Ton

Key Specifications

CAS No.:

7681-57-4

Other Names:

Sodium Pyrosulfite

MF:

Na2S2O5

Changsha Choice Chemicals Ltd.

6Yrs

Payment & Shipping

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Port of Shipment:

Yueyang China

Delivery Detail:

Delivery time depends on order quantity.

CAS No. 7681-57-4

Other Names Sodium Pyrosulfite

MF Na2S2O5

EINECS No. 231-673-0

Place of Origin Hunan, China

Grade Standard Agriculture Grade, Electron Grade, Food Grade, Industrial Grade, Medicine Grade, Reagent Grade

Purity 97% min

Appearance White Powder, white or yellowish crystalline powder

Application food additive

Brand Name ChoiceChem

Model Number sodium metabisulfite

sodium metabisulfite food grade sodium metabisulphite

Product Description

Product Information sodium metabisulfite food grade sodium metabisulphite

Chemical Analysis sodium metabisulfite food grade sodium metabisulphite

Component	Industrial Grade	Food Grade	Medicine Grade
Appearance	White or yellowish crystalline powder
Assay(Na2S2O5 )	96.5%min	97%min	98%min
water insoluble matter	0.05%max	0.03%max	0.02%max
Iron content(Fe)	0.005%max	0.003%max	0.002%max
Arsenic content(As)	0.0001%max	0.0001%max	0.0001%max
Pb	0.0005%max	0.0005%max	0.0003%max

Application

Industrial Uses
Water Treatment	1.Eliminating dissolved oxygen in waste water and in pipes; 2.Cleaning water pipes and reverse osmosis membranes in desalinization equipment as it is an antibacterial. 3.Sodium metabisulfite is used in water treatment plants to remove excess chlorine.
Bleaching Agent	Sodium metabisulfite's functions as a bleaching agent, which is useful in making paper pulp, cotton and wool.
Food Preservative
Antimicrobial	1.Sodium metabisulfite is commonly used as a food preservative for dried foods, as well as fruit concentrate juices. 2.Sodium metabisulfite acts as an antimicrobial, inhibiting the growth of fungi and bacteria, thereby keeping food fresh and safe.
Antimicrobial	In beer and wine manufacturing, sodium metabisulfite is used as both a sterilizer and an antioxidant in the process of brewing beer or fermenting wine.
Other Uses
Medicinal	Sodium metabisulfite is an antioxidant additive in inject able medicines and is also used as a reducing agent in pharmaceuticals.
Photographic and film industry	For preparing developer solutions, for acidifying fixing baths (photo grade).
Landscape Gardening	Sodium metabisulfite used in landscape gardening as a tree stump remover, as it disintegrates the lignin -- chemicals in plant cell walls -- in the tree stumps, making them easier to remove.
Fiber Industry	In the sulphitisation of tanning extract.
Gold mining	For bleaching ground wood, as an antichlor.