Competitive price white powder
Na2S2O4 90%88%85% sodium
General Description of Sodium Hydrosulphite:
(1) Appearance : It is a white sand -like crystals or yellowish powder chemicals
(2) Security Description : toxic , getting fire or explosion occurred , decomposing toxic gases
(3) The description of a spontaneous combustion hazard , instability explosive , toxic (aqueous solution )
ABOUT SAFETY : Avoid contacting it with moisture, acids, oxidizing chemicals and combustible organic
HG/T 2074-2011 Product Specification
|sodium hydrosulfite(Na2S2O4)% , ≥||90.0||88.0||85.0|
|physical appearance||white crysal powder|
|smell||no smell or slightly SO2 smell|
|state when dissolved||Clear or slightly muddy when dissolved in formaldehyde |
GB 22215-2008 Product Specification
|sodium hydrosulfite(Na2S2O4)%||≥ 88.0|
|Lead (Pb)||≤ 5 ppm|
|Cadmiun (Cd)||≤ 2 ppm|
|Arsenic (As)||≤ 1 ppm|
|Ethylenediamine tetraacetic acid disodium (EDTA)||Qualified|
|Fformate (as HCOONa)||≤0.05%|
Sodium Hydrosulfite Applications :
In the textile industry ,
It is widely used for reduction cleaning , printing and bleaching in the textile dyeing industry . And it is used as beacher of silk , wool , nylon fabric , such as bleach , because it does not contain heavy metals , the bleached fabric color is very bright .
In food industry ,
In food industry , it can be used for food bleach , such as gelatin , sugar, candied fruit , and soap , animals (plants ) oils , bamboo, clay of bleaching . It can also be used in organic synthesis , such as dyes , as a reducing agent in the production of drugs or bleach .
In pulp and paper industry ,
Sodium Hydrosulfite is the most suitable wood pulp and paper bleaching agent.
1)Iron drums with double polyethylene liners, net weight 50kg.
2)Internal callbackable container, net weight 1200kg each.
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With us your money is in safe , and your business is in safe .
1. Delivery time : within 7 days after received T/T advance.
2. Payment Terms : T/T 30% Advance payment and 70% Cash Against documents
3. FREE Sample : we offer 200-350g free sample for you to testify the quality .
4. Certificate : we offer Origin Certificate and our products are strictly following REACH regulations .
5. After-sales service : we have a team specializing in offering after-sales service .
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