Product Name: Sodium Hydrosulfite
Other Name: Sodium Dithionite
CAS NO.:7775-14-6
HS CODE : 2831101000
UN NO.:1384
Packing:50kg Iron drum
MOQ:21.2tons/1X20FCL
1.Discription:
SODIUM HYDROSULFITE, also known as sodium hydroxide, is a white sandy crystal or light yellow powder chemical product, melting point 300℃ (decomposition), ignition temperature 250℃, insoluble in ethanol, soluble in sodium hydroxide solution, in contact with water It reacts violently and burns.
2.Main Characteristic of sodium hydrosulfite:
1)White sand-shaped crystal or yellowish powder.
2)Soluble in sodium hydroxide solution and slightly soluble in ethanol.
3)Powdered anhydrous sodium hydrosulfite with a small amount of water may ignite in air by the heat of decomposition.
3.Specification of sodium hydrosulfite:
INDEX |
90% |
88% |
85% |
Na2S2O4 |
≥90% |
≥88% |
≥85% |
Fe |
≤20ppm |
≤20ppm |
≤20ppm |
Zinc(Zn) |
≤1ppm |
≤1ppm |
≤1ppm |
Other heavy metal (as Pb) |
≤1ppm |
≤1ppm |
≤1ppm |
Water Insolubles |
≤0.05% |
≤0.05% |
≤0.05% |
Shelf Life(month) |
12 |
12 |
12 |
4.Package & Storage of sodium hydrosulfite:
50 kg Drum , 21.6MT/20'FCL .
also be packed according to customer's needs.
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.
5.Applications of sodium hydrosulfite:
1.Widely used in printing and dyeing industry,such as cotton fabrics dyeing auxiliary, silk fabric bleaching.
2.Used as bleaching agent in paper industry.
3.Used as bleaching agent,antiseptic agent and antioxidant agent in food industry.
4.Used as bleaching agent for soap,oil esters,pulp in light industry.
5.Used for producing rongalite, sodium thiosulfate,thiourea,sulfur,benzoic acid, synthetic dyes, also used copperplate printing,analytical reagent in the chemical industry,etc.
6.Used as reducing agent in printing and dyeing industry.
Quality Certificate
ISO9001:2008 -Quality Management System; SGS certification; FDA certification