Description

sulfur black
Appearance: Black equality powder, or flaky solid
Classify: Sulfur black BRN **0% , **0%
Sulfur black BN **0%
Sulfur black BR **0% , **0% , **0%
Solubilised sulphur black **0%
Package: *5kgs/ pp bag, iron drum, carton
Usage: they can be used in printing for cotton goods, leather, paper industry.



Application of Sodium Metabisulphite:

• Sodium Metabisulfite is a white to slightly yellowish crystalline powder with sulfur dioxide odor; readily soluble in water. Sodium metabisulfite containing more than *5.0% SO2 w/w releases sulfur dioxide gas when mixed with water. It forms a bisulfite adduct with aldehyde and with ketones to a sulfonic acid. It is used to purify or isolate aldehydes and ketones.
• Sodium metabisulfite's reductive and sulfonating properties provide versatile applications.
• It is used as an oxygen scavenger to eliminate the dissolved oxygen in waste water and in pipes.
• Bisulfite is a reductive bleaching agent. It reduces carbonyl and alcohol groups, which function as colorants of the substances.
• It is used in bleaching mechanical paper pulp, cotton, wool and kaolin clay. Additional applications include as a preservative (antioxidant), a hair waving agent, and Ensiling agent.
• Bisulfites are used in industries concerned with leather processing, food and beverage processing, gas purification, water treatment to remove excess chlorine, textiles and pulp processing, and many others.
• It is used as a reducing agent in chemical manufacturing.It is an alternative to sulfur dioxide which is used in sterilization of equipments.