Main Products: PAC ,Detergent chemicals ,Water treatment chemicals ,Cleaning chemicals ,Machines
sodium dithionite / sodium hydrosulfite 90%
USD $900 - $1,000 /Metric Ton
Min.Order:20 Metric Tons
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Zhengzhou Mahaco Commercial Co., Ltd.
Business Type: Trading Company
Zhengzhou Henan ChinaMain Products: PAC ,Detergent chemicals ,Water treatment chemicals ,Cleaning chemicals ,MachinesProduct Details
Sodium Hydrosulfite 85%, 88%, 90%
Sodium hydrosulfite is a kind of white sand crystallization or light yellow powder chemicals, melting point 300 ℃ (decomposition), ignition temperature 250 ℃, insoluble in ethanol, soluble in sodium hydroxide solution,and will burn a strong reaction when meeting with water.
Hazardous Classification:4.2 UN No.:1384 HS Code:28311000
[Specification]
Index | Specification | ||
Na2S2O4 | 85% | 88% | 90% |
Iron(Fe) | ≤20ppm | ≤20ppm | ≤20ppm |
Zinc(Zn) | ≤1ppm | ≤1ppm | ≤1ppm |
Solution appearance | clear | clear | clear |
EDTA | / | / | / |
Arsenic(AS) | / | / | / |
Other heavy metal(As Pb) | / | / | / |
Formate | / | / | / |
Water insoluble | ≤0.05% | ≤0.05% | ≤0.05% |
[Application]
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,six O(medical),synthetic dyes,also
used copperplate printing,analytical reagent in the chemical industry,etc
6,Used as reducing agent in printing and dyeing industry
[Package]
Packed in 50kg iron drum, one 20 feet container can hold 21 tons.
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