Decolorizing Agent Sodium Hydrosulfite CAS 7775-14-6 88% Sodium Hydrosulphite

• Customization: Available
• CAS No.: 7775-14-6
• Formula: Na2s2o4
• Model NO.: zhd0001-18
• EINECS: 231-890-0
• Certification: CCIC, CIQ, ISO
• Purity: 85% 88% 90%
• Type: Sodium Hydrosulfite
• Appearance: Powder
• Grade Standard: Industrial Grade
• Un No.: 1384
• Density: 2.189 G/Cm³
• Other Names: Sodium Dithionite
• Applications: Textile/Metallurgica/Medicine-Making/Papermaking
• Transport Package: Drum
• Specification: 50kg Drum
• Trademark: ZHD or Customable
• Origin: China
• HS Code: 2831101000
• Production Capacity: 15000ton/Per Year

Product Description

Product Parameters

     Sodium Hydrosulfite

CAS NO.	7775-14-6/ 7631-94-9	HS.CODE	28311010
EINECS NO.	231-890-0	HAZARD CLASS	4.2
UN NO.	1384	Storage Condition	Store at +5°C to +30°C
APPEARANCE	White to Gray-White crystalline powder
Odor	Odorless or a slight odor of SO2 gas
Solubility	Easily Soluble in Water, Insoluble in Ethanol
Standards Code Conformed	HG/T2074-2011 for industrial use
Stability	Stable, but air sensitive. Incompatible with strong acids, strong oxidizing agents, water, moisture.
Sensitive	Moisture Sensitive
Use	Mainly used as printing and dyeing reducing agent, Pulp, hemp, oil and other bleaching agents, and for pharmaceutical, Analytical reagents, etc

Na2 S2 O4
Grade of Quality	Superior G.	First G.	Qualified G.
Percentage of Sodium Hydrosulfite(Na2S2O4 ) Content	≥90%	≥88%	≥85%
Water Insoluble	≤0.1%	≤0.1%	≤0.3%
Sodium Thiosulfate(Na2S2O3)	≤1.0%	≤1.3%	≤1.5%
Sodium Metabisulfite(Na2S2O5)	5-7%	5-7%	5-7%
Sodium Bisulfite(NaHSO3)	≤0.5%	≤0.5%	≤0.5%
Sodium Carbonate(Na2CO3)	0.6-2%	0.6-2%	0.6-2%
Sodium Formate(HCOONa)	≤0.5%	≤0.5%	≤0.8%
Zn	≤0.0001%	≤0.0001%	≤0.0001%
Pb	≤0.0001%	≤0.0001%	≤0.0001%
Fe	≤0.005%	≤0.005%	≤0.005%

Packaging

Outer Package: Drum

Inner Package: 2-layer PE bag

Net Weight Per Drum: 50kgs, 18-21tons/20'FCL without pallets

Port: Qingdao, Tianjin, Shanghai

Applications

   1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
   2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps.
   3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products. 
   4. in mineral, the compound of thiourea and other sulphides.
   5. 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.   

Company Profile

    Internationally advanced production facilities, process standards and management systems.

    Professional sevice team from production, inspection, packing, shipping, to after-sales service.

Our Advantages

       

FAQ

1) What about product quality assurance policy?
We accept pre-shipment test by SGS or any other third party agents.
2) Can we print our logo on the product ?
Yes, we can do it. Just send us your logo design.
3) Do you accept small orders ?
Yes, we can do it. Pls contact us for order details.
4) How about the price? Can you make it cheaper ?
Price is negotiable under different conditions, we are assuring you to get the most competitive price.
5) Do you offer free samples ?
Yes, we could offer the sample for free charge but do not pay the cost of freight.
6 ) What are your payment terms ?
We usually accept T/T, L/C or other terms for negotiating.
7) Can I visit your factory in China ?
Yes, you are welcomed to visit our factory.
8) How Can I place an order ?
Kindly pls chat with us directly, or you could just send us inquiry, we will arrange your order accordingly after all details is finalized.