Thiourea

Description

Thiourea appears as white crystal/powder, is combustible, and on contact with fire, gives off irritating or toxic fumes/gases. Thiourea is a reducing agent used primarily in the production of bleached recycled pulp. In addition, it is also effective in the bleaching of stone groundwood, pressurised groundwood. Thiourea undergoes decomposition on heating and produces toxic fumes of nitrogen oxides and sulphur oxides. It reacts violently with acrolein, strong acids, and strong oxidants. The main application of thiourea is in textile processing and also is commonly employed as a source of sulphide. Thiourea is a precursor to sulphide to produce metal sulphides, for example, mercury sulphide, upon reaction with the metal salt in aqueous solution. The industrial uses of thiourea include production of flame-retardant resins and vulcanisation accelerators. Thiourea is used as an auxiliary agent in diazo paper, light-sensitive photocopy paper, and almost all other types of copy paper. Thiourea is used in many industrial applications, including as a chemical intermediate or catalyst, in metal processing and plating, and in photoprocessing.

Description

Thiourea is an odorless crystalline compound that was first synthesized by fusing NH4SCN (R. E. Powers, 1951).Today it is manufactured, chiefly in Germany, China, and Japan, by the reaction of H2S and CaCN2. Its uses include photographic processing, rubber manufacture, and organic synthesis. Recently, D. Seidel and co-workers used thiourea and other inexpensive reagents in acylation reactions to give products that can be enantiomerically resolved.

The Uses of Thiourea

The product is wildly used in pharmaceutical industry, agricultural, chemicals, metallurgical industry, petroleum and so on. It is also main material for producing thiourea dioxide(CH1N2O2S).

What are the applications of Application

Thiourea is a chaotropic agent