Hot Sale CAS Industry Grade Good Price 50kg Sodium Hydrosulfite

• CAS No.: CAS 7775-14-6
• Formula: Na2s2o4
• EINECS: 231-890-0
• Certification: ISO
• Purity: 80%~90%
• Type: Sodium Sulfate
• Model NO.: 85% 88% 90%
• Appearance: Powder
• Grade Standard: Industrial Grade
• Color: White
• Shape: Powder
• Name: Hydrate Sodium Hydrosulphite Sodium Hydrosulfite
• Called: Powder Sodium Hydrosulfite
• Category: Drum Package Sodium Hydrosulfite
• Way: Iron Drum Package Hydrosulfite
• Other: Sodium Sodium Hydrosulphite
• Style: Sodium Hydrosulfite Na
• Transport Package: Iron Drum
• Specification: 50kgs/Drum
• Trademark: 2831101000
• Origin: China
• HS Code: 2831101000
• Production Capacity: 15000ton/Per Year

Product Description

Product Description

       
       Sodium dithionite, commonly known as sodium hydrosulfite, also known as sodium hyposulfate, is a strong reducing agent in two forms: dihydrate salt and anhydrous salt. Dihydrate is a slightly yellow flake like crystal with extremely unstable chemical properties, only present in alkaline solutions. When heated to a certain temperature, it is dehydrated and converted into anhydrous salts; Anhydrous salt is a white crystalline powder that exists stably when dried at room temperature.
 

Detailed Photos

 

 

Certifications

 

Model No.	7775-14-6	Purity	85%,88%
Appearance	Powder	Freezing Point	52-55 ºC
Molecular Weight (MW)	174.1	Sample	Available
Grade	Industry Grade/Food Grade	Hazard Class	4.2
Origin	China	Transport Package	Iron Drum
Density	2.189 G/Cm³	Production Capacity	500 tons/Month
MOQ	1KGS	Formula	Na2s2o4

 

application :
  1.Factory 
Being water-soluble, sodium dithionite is used as a reducing agent in some industrial dyeing processes. In the case of sulfur dyes and vat dyes, an otherwise water-insoluble dye can be reduced into a water-soluble alkali metal salt (e.g. indigo dye).Sodium dithionite can also be used for water treatment, aquarium water conditioners, gas purification, cleaning, and stripping. It has also been applied as a sulfonating agent. In addition to the textile industry, this compound is used in industries concerned with leather, foods, polymers, photography, and many others, often as a decolourising agent. It is even used domestically as a decoloring agent for white laundry, when it has been accidentally stained by way of a dyed item slipping into the high temperature washing cycle.
It is the an active ingredient in "Iron Out Rust Stain Remover", a commercial rust product.

2.Laboratory
Sodium dithionite is often used in physiology experiments as a means of lowering solutions' redox potential (Eo' -0.66 V vs SHE at pH 7).

 

3.Photography
It is used in Kodak fogging developer, FD-70. This is used in the second step in processing black and white positive images, for making slides. It is part of the Kodak Direct Positive Film Developing Outfit.

 

Packaging & Shipping

 

 

 

Company Profile

Our company is engaged in developing and manufacturing Glacial acetic acid, formic acid ,nitric acid,copper sulphate, sodium formate and so on , which are mainly used to pharmaceutical, agriculture and chemical rawm aterial. It has its own research center and production base. The research center is located in the High-Tech Development Zone in Shijiazhuang,covering an area of 1000 sq. meters. The production base is located in the Jinzhou Industrial District of Hebei,covering an area of 66,700 sq. meters. We have 200 sets of large-scale reactors capable of conducting high temperature, high pressure and ultra low temperature reactions,and we also have 300 sq. meters of 10,000 level clean warehouse. Our manufactured products range from gram level to tonnage level, and we attain annual production of 500 tons of fine chemicals. It passed ISO9001 certification in 2011, and established complete Quality Control system. We also own independent import & export permits. We expect to continue to establish stable and mutually beneficial partnerships with companies home and abroad.

 

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.