Sodium Metabisulfite

By: Az Chemicals  09-12-2011
Keywords: Pulp and Paper, Plastic Woven, Plastic Woven Bag,

We produce two grades of sodium metabisulfite: Technical and Food.

Common Applications

Textile Bleaching agent for textile fibers; color stripping and dechlorination; preparation of indigo vat Dye
Leather Solubilizing and acidifying agent
Pulp and Paper Bleaching agent
Food Food preservative and sterilization

Product Specifications

Chemical Formula: Na2S2O5
CAS No: 7681-57-4
Packaging : 25 kg compound plastic woven bag with inner polythene liner; 1000kg or 1100kg Jumbo bags


Technical Grade

Food Grade



96.5 (SO2


Iron (Fe)

50 ppm

50 ppm

Water insolubles


Arsenic (As)

1 ppm

1 ppm

Heavy Metal (such as Pb)

10 ppm

Shelf life

6 months

6 months

Storage and handling

Store the product in a cool and dry place; prevent from direct sunlight, water and moisture; avoid contact with strong acid, oxidants or poisonous substances. Sodium metabisulfite oxidize to sodium sulfate easily when exposing to moisture. Do not store it for long time.

Keywords: Plastic Woven, Plastic Woven Bag, Pulp and Paper,

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