EMAIL THIS PAGE TO A FRIEND
157953 Sigma-Aldrich

Sodium hydrosulfite

technical grade

Synonym: Sodium dithionite, Sodium hypodisulfite

Purchase

Properties

Related Categories Essential Chemicals, Research Essentials, Salts, Sodium Salts
grade   technical grade
InChI Key   JVBXVOWTABLYPX-UHFFFAOYSA-L
solubility   water: soluble(lit.)

Description

General description

Sodium hydrosulfite (Sodium dithionite, Sodium hypodisulfite, Na2S2O4) is a white crystalline sodium salt. It decomposes in the presence of atmospheric oxygen to afford sodium hydrogen sulfate. It has been prepared by reducing sodium hydrogen sulfite in sulfurous acid solution with zinc. It is widely used for the decolorization prior to dyeing of cloths in the textile industry.

Application

Sodium hydrosulfite may be employed as a reducing agent for the reduction of graphite oxide in a study.
Sodium hydrosulfite has been used as a fluorescent quenching agent in the encapsulation of polynucleotides via production of asymmetric nanoparticles. It has also be used in the form of buffer for the elution of probe labelled proteins involved in the indentification of cellular targets of covalent kinase inhibitors via mass spectrometry method (MS).

Packaging

2 kg in glass bottle

5, 100 g in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
Supplemental Hazard Statements 
Contact with acids liberates toxic gas.
RIDADR 
UN 1384 4.2 / PGII
WGK Germany 
1

Documents

Certificate of Analysis

???PDP_SDS_LOT_NUMBER_ERROR_MSG???

Certificate of Origin

???PDP_SDS_LOT_NUMBER_ERROR_MSG???

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products.Once you log onto our website, you will find the price and availability displayed on the product detail page.You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 orview local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
What is the solubility of Product 157953, Sodium hydrosulfite?
According to The Merck Index, 12th ed., Entry# 8771, this compound is very soluble in water, and only slightly in alcohol.
What other species may be present in Product 157953, Sodium hydrosulfite?
Sigma-Aldrich does not test for the presence or absence of impurities in this product..
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
Show more questions
Protocols & Articles
Peer-Reviewed Papers
15

References

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?