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I. Description of the Product
Thiourea (also called Thiocarbamide or Sulfourea) is the diamide of thiocarbonic acid that
resembles urea but contains sulfur instead of oxygen. Thiourea is the main raw material of
producing thiourea dioxide, which presents a white sheen slice, pillar or needle form
shining crystallize body. It can dissolves in cold water, ammonium sulphur prussic acid
and alcohol, also easily dissolves in hot water, but hardly dissolves in aether.
II. Applications of the Product
Thiourea is a fine chemicals product with high additive value,which is widely applied in
various industries such as medicine, agriculture, textile, printing-dyeing, chemical,
metal-mine-selecting, laundering etc.
It mainly uses in pharmaceutical raw material, bleaching agent in textile dyeing and
printing, auxiliary of dyeing and anti-oxidant, and it can be used as rubber accelerator,
floating agent, photo developing agent, prexide thiourea, cold wave etc. It is also used in
resin compression molding powder electroplatin blue printing and boiler washing. In
macromolecule material industry, it is used as catalysis agent and stabilizer of resinic
producing, and it is also used in organic synthesization of sensitizing material, and
medicine, medical, spicery materials in fine chemicals, and also can be applied in the
recycling and separating of heavy metals.
III. Quality Terms
Byname Thiocarbamide
Feature White crystal powder, bitter-taste, combustible
Molecular Formula (NH2)2CS or CH4N2S
Gravity 1.406
Molecular Weight 76.12
Technical Index ( HG/T3266-1988 )
Specifications Best grade Frist grade Qualified grade
Content of thiourea,% min 99.0 98.5 98.0
Loss after heated,% max 0.40 0.50 1.00
Ash content,% max 0.10 0.15 0.80
Water insoluble matter,% max 0.02 0.05 0.10
Suiforho danide(with CNS-),% max 0.02 0.05 0.10
Melting point,(degrees centigrade) 171 170 -----
Supply Thiourea