Sodium hydrosulfide is a potential chemical

Sodium Hydrosulfite, also know as Sodium Dithionite had been developed at the beginning of the 20th century and was first applied for textile printing. Due to structural change in the textile industry, the importance of the application for the bleaching of wood pulp in the paper industry increased continuously. For these applications, BrüggemannChemical offers the products Sodium Hydrosulfite S, N and F.

Sodium Hydrosulfite(CAS NO:16721-80-5)is a colorless needle-like crystal, easy to be deliquesced, it will decomposed and release hydrogen disulfide at its melting point, soluble in water and alcohols, its water solution is strongly alkaline, it will generate hydrogen disulfide when reacting with acids. The industrial good is solution, orange or yellow, bitter taste.

Thousands of tons of NaHS are produced annually. Its main uses are in paper manufacture as a makeup chemical for sulfur used in the Kraft process, as a flotation agent in copper mining where it is used to activate oxide mineral species, and in the leather industry for the removal of hair from hides.

As strong and reactive reducing agents, selected types of Sodium Hydrosulfite are also used in special applications for instance in the reduction of heavy metals such as chromium, manganese, molybdenum or tungsten in waste water. For this application we offer the product Sodium Hydrosulfite S.

Sodium Hydrosulfite, is the only industrially important salt of dithionous acid (H2S2O4), which has not been isolated. The importance of sodium dithionite lies in its power full reducing capacity, which allows, for example, vat dyes to be reduced at room temperature. It is also used as a bleaching agent, mainly in the textile and paper industries but also in the leather, food and kaolin clay industries.

The ease of solubility makes this chemical a highly useful reducing agent in dyeing industry. As compared to other water insoluble chemicals, sodium dithionate is also known to eliminate any residual oxide, unattended pigments as well as excess dye, thus improving the overall quality of the product. Sodium Hydrosulfite also finds application in biological sciences as it is used a reagent to lower the redox potential of chemical reactions being carried out in the laboratories.

Although, not that commonly, but it is also used as a developing agent in photography industry. Because of its ability to enhance the solubility of metal ions, it is also used as a chelating agent in metal extractions. Sodium Hydrosulfite is used as chemical agent for environmental improvement, water treatment and gas purification processes. It is also used in the production of commercial bleach, used for the treatment of leather, cotton, wool, paper pulp and chrome tanning.

So, now we know what all roles that this versatile chemical can play in its various forms (solid and solution forms). Looking at the above mentioned facts it won’t be wrong to say that sodium hydrosulfite has emerged as a chemical work-horse for multifarious industrial purposes and will continue to function as the same in the times to come as well.

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