Thiourea dioxide has many advantages, such as high reducibility, excellent heat stability, nonpoison, tasteless, easy operation, efficience, transportation and storage convenient etc. It is an exchange product of sodium hydrosulphite. It can be extensively used in dyeing, paper making and other industries as kinds of reduction agent, bleach, decolorizer, plastic stabilizer, antioxygen of organic synthesis and sensitiet of sensitiet.
At present, its output is 4000t/y. The quality indexes of ? thiourea dioxide have reached the standard as bellow:
· the thiourea dioxide content: 99% min
· the content of risidual thiourea:0.1% max
· moisture contentt:0.05% max
· sulphate content:0.17% max
· molysite content:10PPM max |