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1. Appearance: White or yellowish crystalline powder.
2. Relative density : 1.4.
3. Solubility: Soluble in water (20 ℃ for 54 g / 100 ml of water, 100 ℃ for 81.7 g / 100 ml of water), glycerin, and slightly soluble in alcohol.
4. acidic aqueous solution,
5. easy to decompose when affected by damp,
6. easy to oxidize into sodium sulfate when exposed to air;
7. its contact with strong acid will release sulfur dioxide and generate the corresponding salts;
8. decompose when heated to 150 ℃.
National Standard: HG/GT2826-2008
Index Name | Specificaiton | |
High-class | First-class | |
Main Content(Na2S2O5)% ≧ | 97.0 | 95.0 |
Water insoluble ≤ | 0.05 | 0.05 |
Fe(Fe) ≦ | 0.005 | 0.010 |
As(As) ≦ | 0.0001 | / |
97% Purity Sodium Metabisulphite Na2S2O5 Industrial Grade Technique Grade
Industry | Usages |
Food | 1. As a preservative in fruits and starch |
Textile | 1. For bleaching wool and jute 2. dechlorination agent after cotton bleaching, and scouring auxiliary agent for cotton in the printing and dyeing industry. |
Paper and pulp | For bleaching ground wood |
Leather | 1. leather processing- making leather soft, plump and tough, with the water proof, 2. as leather processing chemical during the deliming process and helps to prevent formation of toxic hydrogen sulphide gas during deliming. |
Water treatment | 1. assists in the dechlorination of drinking water as well as in the chlorine removal in waste waters 2. effluent treatment chemicals- used as an oxygen scavenger to eliminate the dissolved oxygen in waste water and in pipes. |
Photography and film | 1. For developer solutions and acidifying fixing baths 2. as a photographic developing and fixing bath agent |
Gold mining | For detoxification of cyanide in gold ore processing plants and in the manufacture of photographic chemicals. |
25Kgs/Plastic woven bag;1000kgs/Bag or as requested.
established on February 2, 2012.
located in Bingzhou,, China
registered capital: 88 million yuan
Staff: more than 100 employees, including 5 senior engineers, 20 engineers and technicians, over 60 junior technicians
Our Principles: technological innovation, resource conservation, environment friendly.
We sincerely welcome you to visit our company and plants.
We have joined in substantial exhibitions!
Q:Are you a factory or trading company?
A:We are a factory
Q:Where is your factory located? How can I visit there?
A:you can fly to Changsha International Airport . All our clients, from home or abroad, are warmly welcome your visit !
Q:What is the payment terms?
A: L/C ,T/T, D/P
Q:How can I get some samples?
A: Kindly send us your address, we are honored to offer you samples.
Q:How does your factory do regarding quality control?
A: Our factory can accept any third party inspection.
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