Sodium Dithionite CAS 7775-14-6

Sodium Dithionite CAS 7775-14-6

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Product Details

 

Product name:  
Sodium Dithionite
Molecular Formula: 
Na2O4S2
Molecular Structure:  
mtxx478
Molecular Weight:  
174.107
CAS No.:
7775-14-6


Description  

Sodium dithionite is a white sand crystal or light yellow powder chemical. It has a melting point of 300 ° C (decomposition) and an ignition temperature of 250 ° C. It is insoluble in ethanol and soluble in sodium hydroxide solution. It reacts strongly with water and burns.

 

Application

Sodium dithionite is widely used in the printing and dyeing industry, such as cotton fabric dyeing agent and silk wool fabric bleaching. Also used in medicine, mineral processing, and copperplate prints. Also used as a bleaching agent and the like in the paper industry. Food grade products are used as bleaches, preservatives and antioxidants.

 

Specification

Appearance 
White sand crystal or light yellow powder
Sodium Hydrosulphite
90% min
Water insoluble
0.1% max
Sodium thiosulfate: Na2S2O3
1.3% max
Sodium metabisulfite: Na2S2O5 
5~7%
Sodium bisulfite: NaHSO3 
0.5% max
Sodium carbonate: Na2CO3 
0.6~2% max
Sodium formate: HCOONa   
0.5% max
Zn
1PPM max
Fe
10PPM max


Packing

50kg / iron drum or as customer’s requirements.

 

Storage     

Store in tight container, in a dry and cool place.

 

Minimum Order

1000kgs

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