sodium metabisulfite metabisulphite smbs cas7681-57-4 developer

  • sodium metabisulfite metabisulphite smbs cas7681-57-4 developer Manufacturers, sodium metabisulfite metabisulphite smbs cas7681-57-4 developer Factory, Supply sodium metabisulfite metabisulphite smbs cas7681-57-4 developer
sodium metabisulfite metabisulphite smbs cas7681-57-4 developer
  • Xiang Sante
  • Hunan
  • 7-15days
  • 300000T/Year

sodium metabisulphite, 96-97% purity industry grade strict quality control high quality own factory competitive price for developer

sodium metabisulfite metabisulphite smbs cas7681-57-4 developer


Product description

Commodity name:  Sodium Pyrosulfite,Sodium Metabisulfite   

Classification:Sulphate  

MF:Na2S2O5  

 Molecule Weight: 190.1           

 CAS NO.:7681-57-4           

 EINECS NO.: 231-673-0           

HS Code: 28321000

Appearance: White or yellowish crystalline powder          

Smell: SO2       Application: developer, rubber reinforcing, leather processing

Grade Standard: Industrial grade           

Purity: 97%         

Brand Name: Xiang Sante      

Supply quantity: 300,000 Mt/Y

Sodium Pyrosulfite Used As a Developer



National Standard :[HG/T2826-2008] 
Product Specification:
ItemSpecification
High-ClassFirst-class
Main Content (Na2S2O5)  % ≥96.595.0
Fe (fe)%≤0.050.05
Heavy metal(PB)%≤0.0050.01
As (As) %≤0.0001----


【Physical characters】:White or yellowish crystalline powder. Relative density 1.4, soluble in water (20 ℃ for 54 g / 100 ml of water;At 100 ℃ for 81.7 g / 100 ml water), acidic aqueous solution, soluble in glycerin, slightly soluble in alcohol. Easy decomposition with damp, easy oxidation into sodium sulfate when exposed in air and contact with strong acid release sulfur dioxide and generate the corresponding salts, decompose when heated to 150 ℃.


【Application】:

1. The pharmaceutical industry- used to produce chloroform, phenylsulfone and benzaldehyde.

2. The rubber industry- used as a coagulant.

3. The printing and dyeing industry- used as the dechlorination agent for cotton bleaching, and cotton scouring auxiliary agent;

4. Leather processing- used for leather processing, which can make leather soft, plump and tough. It has the properties of waterproof, anti-folding and wear-resisting.

5. Chemical industry- used to produce hydroxyl vanillin, hydroxylamine hydrochloride, etc.

6. Photosensitive industry- as a developer;

7. The food industry- used for bleaching agents, preservatives, loose agents, antioxidants, color rentention agents and preservatives.

 

【Package】:25Kgs/Plastic woven bags;1000kgs/Bag or as requested.


【Certification】:

 sodium metabisulfite


【FAQ】:

Q: Are you a factory or trading company?                        A: We are a factory.

Q:What is the payment terms?                                         A: L/C ,T/T, D/P or other payment terms negotiable.

Q: How does your factory do regarding quality control?   A: Our products can accept any third party inspection.

Q: How long is your delivery time?                                   A: Generally 7-12days.

Q: Do you provide free samples? is it free or extra?          A: Yes, we could offer the sample for free charge.

Q:Where is your company located?How can I visit there?     A: You can fly to Changsha International Airport. All our clients, from home or abroad, are warmly welcomed !



                                                                             sodium metabisulfite metabisulphite smbs cas7681-57-4 developer



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