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About Us Location:Home >> Products > sodium hydrosulphite     

sodium hydrosulphite

sodium hydrosulphite

Item : 775-14-6

Details :

Overview
Specifications
Classification:
Sulphate, Other Inorganic Salts
Type:
sodium dithionite
CAS No.:
7775-14-6
Other Names:
sodium dithionite
MF:
Na2S2O4
EINECS No.:
231-890-0
Place of Origin:
China (Mainland)
Grade Standard:
Industrial Grade
Purity:
85%
Appearance:
free-flowing white crystalline powder
Application:
used as bleaching agent for textile and papermaking industry
Brand Name:
hutongglobal
Model Number:
85
MW:
174.11
Packaging & Delivery
Packaging Details:
50kg steel drum
Delivery Detail:
21days

Sodium Hydrosulfite  85% 

                                                                                                                                                             

 Mol. Formula: Na2S2O4

Molecular wt.:174.11

                                                                                                                                         

 PropertiesThe bulk specific weight is 0.7-1.0g/m, dissolve in water, slightly dissolve in ethanol. Give off heat and cause combustion easily. Spontaneous decomposition occurs when the temperature is higher than 85℃, heats up to 190℃cause detonation. Self-ignition point is 250℃. 


Physical appearnce: free-flowing white crystalline powder

 Sodium Hydrosulphite               90        88         85                   

Water insoluble                ≤     0.1        0.2        0.3          

Sodium thiosulfate: Na2S2O3         1.2        1.25        1.3                 

 Sodium metabisulfite: Na2S2O5         5         6          7                              

Sodium bisulfite:NaHSO3            0.4        0.45        0.5                          

Sodium carbonate: Na2CO3     ≤     0.6        1.3          2                               

 Zn                                           0.00008                                     

Fe                           ≤                0.002

Packing:  50kg or 25kg net in iron drums with double PVC bags

Usage:  Sodium hydrosulfite is strength oxidant and is used as bleaching agent for textile and papermaking industry, as synthetic for medicine-making, as absorbent for analysis chemical, and as flotation agent of nonferrous color metal for metallurgical industry

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