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sodium hydrosulfite 90

Inquiry
  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: 7775-14-6 Sodium hydrosulfite
  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
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