| Customization: | Available |
|---|---|
| CAS No.: | 7775-14-6 |
| Formula: | Na2s2o4 |
|
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| ITEM | STANDARD | |||
| Hydrosulphite | 74% |
85% |
88% |
90% |
| Water insoluble | 0.3 max | 0.3 max | 0.1 max | 0.1 max |
| Sodium thiosulfate: Na2S2O3 | 1.4 max | 1.5 max | 1.3 max | 1.0 max |
| Sodium metabisulfite: Na2S2O5 | 5-7 | 5-7 | 5-7 | 5-7 |
| Sodium bisulfite:NaHSO3 | 0.5 max | 0.5 max | 0.5 max | 0.5 max |
| Sodium carbonate: Na2CO3 | 0.6-2 max | 0.6-2 max | 0.6-2 max | 0.6-2 max |
| Sodium formate: HCOONa | 0.5 max | 0.8 max | 0.5 max | 0.5 max |
1) It is for vat dyes staining the reducing agent, reducing hair bleaching agents, vat dyes printing auxiliaries, silk scouring and bleaching agent, dyeing agents and objects of the peel color dye vat cleaning agent in the textile industry.
2) It is used as a mechanical pulp, mechanical pulp mill hot and deinking pulp bleaching agent in pulp and paper industry.
3) As a bleaching agent is widely used to restore the kaolin bleaching; Fur whitening bleaching and restore; Bamboo products and straw products such as bleach.
4) It is used as a reducing agent in chemical industry.
Our company is engaged in developing and manufacturing Glacial acetic acid, formic acid ,nitric acid,copper sulphate, sodium formate and so on , which are mainly used to pharmaceutical, agriculture and chemical rawm aterial. Jinchangsheng has its own research center and production base. The research center is located in the High-Tech Development Zone in Shijiazhuang,covering an area of 1000 sq. meters. The production base is located in the Jinzhou Industrial District of Hebei,covering an area of 66,700 sq. meters. We have 200 sets of large-scale reactors capable of conducting high temperature, high pressure and ultra low temperature reactions,and we also have 300 sq. meters of 10,000 level clean warehouse. Our manufactured products range from gram level to tonnage level, and we attain annual production of 500 tons of fine chemicals. Jinchangsheng passed ISO9001 certification in 2011, and established complete Quality Control system. We also own independent import & export permits. We expect to continue to establish stable and mutually beneficial partnerships with companies home and abroad.
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 7-10 working days after payment.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: TT,LC,DA,DP or as customer's requirement.
If you have any other needs, please contact me.
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