1. Physical and Chemical Property of Thiourea dioxide ,

 Name: Thiourea Dioxide

 Other Name: Formamidine Sulfinic Acid, Amino Imino Methanesulfinic Acid

 Appearance and Odor: White Crystal Powder, Odorless

 Formula: CH4N2SO2            

 Molecular Weight: 108.12         Melting Point: 126’C 

 PH: 4(1% Solution)

 CAS No.: 1758-73-2 or 4189-44-0   

 UN No.:3341

 Dangerous Good Class: 4.2

2.  Specification of Thiourea dioxide ,

   Purity: 99% Min

   Thiourea: 0.10% Max

   Moisture: 0.05% Max

   Iron(Fe): 10ppm Max

   Sulphate: 0.17% Max

3. Use of Thiourea dioxide ,

   It is one new kind environmental-protection agent which can be used as exchange of Sodium Hydrosulfite. It has good heat stability, high reducibility, easy operation and transportation and storage convenient. It widely applies to reduction dyes and sulfur dyes dyeing, wool and silk bleaching, disperse dyes reducing cleaning, dye vat cleaning and so on. And it’s also used in paper making industry as bleaching agent, deinking, waste paper deink, etc. And then it’s used to organic synthesis in synthetic fiber industry, additive of polythene sensitizer of photographical emulsion, noble metal recycling and separates, etc. There is no pollution during the operation.

4.  Period of Validity: of Thiourea dioxide ,

one year

5.  Packing of Thiourea dioxide ,

   500kgs or 1000kgs container bags.

   50kgs fiber drums

   180kgs Iron Drum

   25kg or 50kg woven ags.

6. Storage of Thiourea dioxide ,

 Storage in dry clean, well-ventilated condition, keep the warehouse temperature   under 30’C.          

Keep away from moisture and raining.