CAS NO.: 7681-57-4
Chemical formula: Na2S2O5
Specification:
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Project (Item)
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Ceindex
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Main content (with Na2S2O5 plan), %≥
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95.0 p
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(in SO2 plan), %≥
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65.0 p
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Iron content (with Fe plan), %≤
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acuities 0.005
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Clarify degree have some slight turbidity
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Heavy metal content (Pb plan), %≤
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acuities 0.001
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Arsenic levels (As plan), %≤
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acuities 0.0002
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Properties: it is white or yellow crystalline powder or small crystal, with warm smell of SO2. It will create acidic solution after dissolving in water.
Application: it can be made into bleach (used for candy, cakes and water-soaked bamboo slice), bulking agent (used for bread and biscuit), anticorrosive microbicides (used for fruit juice and canned food), antistaling agent (used for seafood and fruit dredging).