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.
Lithopone
Well-used in paint-making, printing ink, plastics, leather, PVC All
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