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Food grade Sodium hydrosulfite used as reducing agent in chemical industry
Name:sodium hydrosulfite
Appearance: powder/flake
Grade: Industrial Grade Food Grade
Type: powder/flake
Molecular Formula:NaHS
UN No. 2318/1385/2949
EINECS No.:240-778-0
CAS No.: 16721-80-5
HS Code:2831101000
Certificate: SGS/Health certificate/ISO certificate
Other names: sodium dithionite / Sodium bisulfide
1. sodium hydrosulfite is widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. sodium hydrosulfite is also used in bleaching paper pulps , especially mechanical pulps, it’s the most fittable bleaching agent in pulps.
3. sodium hydrosulfite is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
4. sodium hydrosulfite is used in mineral, the compound of thiourea and other sulphides.
5. sodium hydrosulfite is used as reducing agent in chemical industry.
6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable,
vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms
CERTIFICATE OF ANALYSIS
sodium hydrosulfite industrial grade 85%min
Specification Tolerance Result
Purity(wt%) 85min 85.84
Na2CO3(wt%) 3 – 4 3.41
Na2S2O3(wt%) 1 -2 1.39
Na2S2O5(wt%) 5.5 -7.5 6.93
Na2SO3(wt%) 1 -2 1.47
Fe(ppm) 20max 18
Water lnsoluble 0.1 0.05
sodium hydrosulfite industrial grade 88%min
Specification Tolerance Result
Purity(wt%) 88min 88.5
Na2CO3(wt%) 1-3 1.38
Na2S2O3(wt%) 1-1.5 1.11
Na2S2O5(wt%) 2.5-4.0 3.2
Na2SO3(wt%) 0.5-1.5 0.20
HCOONa(wt%) 2.5-3.5 2.75
Fe(ppm) 18max 16.2
Water insoluble(wt%) 0.1max 0.06
sodium hydrosulfite industrial grade 90%min
Specification Tolerance Result
Purity(wt%) 90min 90.32
Na2CO3(wt%) 1-2 1.65
Na2S2O5(wt%) 2-2.5 2.01
Na2SO3(wt%) 0.3-0.5 0.39
Fe(ppm) 17max 15
Pb(ppm) 1 0.15
Packaging:50kgs/steel drum with plastic inside
Loading quantity: 25mts/20’FCL(without pallet)
Delivery time: within 15~25 days after receiving customer’s prepayment.

FIC is a professional supplier of FOOD ADDITIVES,FEED&FERTILIZER,INDUSTRIAL CHEMICALS, CHEMICALS in China.
Since 2002,we have already developed and established good business relationship with worldwide reputed customers.Based on the experienced and professional sourcing and trading business in chemical field,we can guarantee the quality and stability of goods.


Q1.What's the payment terms?
We could accept these payment terms:T/T L/C DP Escrow Western Union Paypal
Q2.What’s the shelf life for the cargos?
Our product’s shelf life is 2 years,which is based on dry and ventilated storage.
Q3.What’s the delivery time?
We usually deliver the cargos within 10~20 days after receiving customer’s prepayment and original LC.
Q4.What documents can we supply?
Commerical Invoice, packing list, certificate of analysis, certificate of origin(FORM E), health certificate issued by CIQ with embassy legalized, bill of loading, REACH etc.
The documents will be sent by Express within 24hours against your full payment.
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