|Packaging Details:||50kg iron drum or 25kg bag.|
|Payment Terms:||L/C, T/T, Western Union, MoneyGram|
|Supply Ability:||2000 tons per month|
Products name:Sodium hydrosulfite
1.White free-flowing crystal powder
3.Appearance: white crystal powder
4.Widely used in the textile industry
5.HS Code: 28311000
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:
|Total other heavy metals||10ppm max||8ppm|