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manufacturer supply Sodium Hydrosulfite/ Sodium Hydrosulfite 74%/ 85% /88%/90% for leather & textile industry

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manufacturer supply Sodium Hydrosulfite/ Sodium Hydrosulfite 74%/ 85% /88%/90% for leather & textile industry

Products name:Sodium hydrosulfite

1.White free-flowing crystal powder


2.Purity 85%/88%/90%


3.Appearance: white crystal powder


4.Widely used in the textile industry


5.HS Code: 28311000


6.CAS NO.:7775-14-6

7 MF: Na2S2O4


Properties for Sodium Hydrosulfit:

Belongs to the level of sodium dithionite in wet flammable items, also known as low sodium sulfite.Goods that contain water of crystallization (Na2S2O4. 2 h2o) and contains no crystallization water (Na2S2O4) two kinds.The former for white fine crystal and the latter is light yellow powder.Relative density 2.3-2.4, when red heat decomposition, soluble in cold water, decomposition in the hot water, insoluble in ethanol.


The nature of its aqueous solution has been unstable strong reducibility, belongs to the strong reducing agent.Exposed to the air can absorb oxygen and oxidation, but also easy to absorb moisture fever and metamorphism, and can seize the oxygen in air to agglomerate and irritating sour.


Specification for sodium hydroslfite:


SpecificationToleranceResult
Purity(wt%)90min90.57
Na2CO3(wt%)1 -2.51.32
Na2S2O3(wt%)0.5-10.58
Na2S2O5(wt%)5 -76.13
Na2SO3(wt%)0.5-1.50.62
Fe(ppm)20max16ppm
Water Insolubles:0.10.03
Total other heavy metals10ppm max8ppm

Cheap manufacturer supply Sodium Hydrosulfite/ Sodium Hydrosulfite 74%/ 85% /88%/90% for leather & textile industry for sale
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