Free Sample Textile Industry Good Price Powder Sodium Dithionite Hydrosulfite

• CAS No.: CAS 7775-14-6
• Formula: Na2s2o4
• EINECS: 231-890-0
• Certification: ISO
• Purity: 80%~90%
• Type: Sodium Sulfate
• Model NO.: 85%
• 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

Certifications

ITEM	STANDARD
Hydrosulphite	74%	85%	88%	90%
Water insoluble	0.3     max	0.3      max	0.1     max	0.1      max
Sodium thiosulfate: Na2S2O3	1.4      max	1.5  max	1.3      max	1.0      max
Sodium metabisulfite: Na2S2O5	5-7	5-7	5-7	5-7
Sodium bisulfite:NaHSO3	0.5      max	0.5      max	0.5      max	0.5      max
Sodium carbonate: Na2CO3	0.6-2    max	0.6-2    max	0.6-2    max	0.6-2    max
Sodium formate: HCOONa	0.5      max	0.8     max	0.5      max	0.5

Product Description

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

Detailed Photos

Packaging & Shipping

 

 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.

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.