Sodium Metabisulfite is soluble in water, the aqueous solution is acidic. Soluble in glycerol, slightly soluble in ethanol. If contact with strong acids releases sulfur dioxide and generates corresponding salts. Exposed to air for a long time, will be oxidized to Na2s2O6, heated to 150 ° C at high temperatures, SO2 will be generated.

Qingdao Tianya Chemical Co., Ltd is the leading manufacturer and supplier of Sodium Metabisulfite products in China, we produces high quality China Sodium Metabisulfite with wide applications.

Function & Application of Sodium Metabisulfite Industrial Grade:

Sodium Metabisulfite industrial grade (Technical Grade) is widely applied to water treatment, mining industry, paper industry, rubber, jeans, printing and dyeing industry, leather, perfume industry, chemicals producing, construction industry, wooden products processing, chromatographic analysis reagents, etc..

Reductant: the main pollutant component in wastewater containing chromium is Cr6+, which mainly comes from industries such as the processing of ores containing chromium, metal surface treatment, leather tanning, printing, etc.. Sodium metabisulfite industrial grade (Technical Grade) as a reductant can reduce Cr6+ to Cr3+. Adjust the pH value of wastewater to 2-3, add Sodium Metabisulfite industrial grade (Technical Grade) to reduce Cr6+ to Cr3+, and then adjust the pH value to between 8 and 9, Cr3+ ions in the solution precipitate to produce Cr (OH) 3, after separating the mud and water, the sludge can be sent to the disposal center for treatment. After the treatment wastewater becomes clear, don’t need to filter when take samples for testing, resulting in less sludge generating and reducing treatment costs.

Mining processing agent: Sodium metabisulfite is a kind of chemical agent that reduces the floatability of minerals.Sodium metabisulfite can form a hydrophilic film on the surface of mineral particles, forming a colloidal adsorption film, thereby hindering the interaction between the collector and the mineral surface.

In paper industry Sodium metabisulfite is used as bleaching agent.

In rubber industry Sodium metabisulfite is used as coagulator.

In printing and dyeing industry Sodium metabisulfite is used as a dechlorinating agent and cotton scouring agent after cotton fabric bleaching.

Sodium metabisulfite is used for leather processing in leather industry, which can make leather soft, plump and tough, has properties such as waterproofing, bending resistance, and wear resistance.

Sodium metabisulfite is used for the production of vanillin in perfume industry.

Sodium metabisulfite is used for the production of hydroxylamine hydrochloride and sodium hydrosulfite.

Sodium metabisulfite can produce concrete water reducing agents in construction industry, Sodium Metabisulfite has early strong effect in concrete, the dosage should be controlled at 0.1%-0.3%, if too large amount is added the later strength of concrete will be affected.

Sodium metabisulfite is used for anticorrosion and bleaching treatment in wooden products.

Sodium metabisulfite is used as a chromatographic analysis reagent in lab.