sodium hydrosulfite 90

• Post Date:

  Dec 17,2014

• Expiry Date:

  Jun 15,2015

• Detailed Description:

  Cas No. :7775-14-6 Quantity: 800Metric Tons
  Specs:sodium hydrosulfite 90,85,80
  Price:1400 USD Metric Tons
  Payment Method: TT,or LC
  

  Sodium Hydrosulfite (tech/food grade) 85%88%90%

  
  1.Basic Information:

   

  Chemical Formula:Na2S2O4 
  CAS No.:7775-14-6 
  Output:100,000 ton/year

  Appearance:Free-flowing white crystalline powder 
  Odor:Odorless or with a slight odor of sulfur dioxide 
  Pacgage:15kg,20kg,25kg,50kg,100kg,200kg iron drums with double polyethylene liners;

   

  2. Description:

   

  Sodium hydrosulfite is a versatile chemical that's used in the manufacture of a variety of products we all use every day, from photographic film to wine; from fine writing papers to leather goods; from colored fabrics to metal recovery.

   

  While the applications for this chemical workhorse are as vast and as varied as the industries that use it, in most cases, sodium hydrosulfite performs one of the following three roles:

  1.As a reducing agent, hydrosulfite chemically reduces other components by donating an electron or electrons

  2.As a sulfonating agent, hydrosulfite adds sulfur to another chemical compound

  3.As a cation source, hydrosulfite adds a cation, or sodium, to a product system

   

  3. Application:

  Some industries that commonly rely on sodium hydrosulfite in the manufacture of their products include:

  Textiles

  Pulp and paper

  Clay

  Leather

  Foods and beverages

  Polymers

  Photographics

  Chemical processing

  Cleaners

  Water treatment

  Gas purification

  Environmental improvement

   

  4. Product Specification 

  Index	Technical Grade			Food Grade
  Na2S2O4	≥ 90%	≥ 88%	≥ 85%	≥ 85%
  Iron(Fe)	≤20ppm	≤ 20ppm	≤ 20ppm	≤ 20ppm
  Zinc(Zn)	≤ 1ppm	≤ 1ppm	≤ 1ppm	≤ 1ppm
  solution appearance	clear	clear	clear	clear
  EDTA	/	/	/	qualified
  Arsenic(As)	/	/	/	≤ 1ppm
  other heavy metal( As Pb)	/	/	/	≤ 1ppm
  Formate	/	/	/	≤ 0.05%
  water insolubles	≤ 0.05%	≤ 0.05%	≤ 0.05%	/
  shelf life(months)	12	12	12	12

• CAS Registry Number:

  7775-14-6

• Synonyms:

  ;Sodium dithionite hydrate;Sodium hydrosulphite;Sodium dithionite;disodium dithionite;

• Molecular Formula:

  Na₂O₄S₂

• Molecular Weight:

  174.1071

• Molecular Structure:

  

• Hazard Symbols:

   Xn:Harmful;
  

• Risk Codes:

  R22:;
  R31:;
  R7:;
  

• Safety Description:

  S26:;
  S28A:;
  S43E:;
  S7/8:;
  

• Company:

  Zhengzhou Clean Chemical Co.,LTD.     [ China ]        

• Contact:

  Angela Lee

• Tel:

  +86-371-69118518

• Fax:

  +86-371-66611971

• Email:

  ALchem@cleaningent.com