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Thiourea, thiocarbamide,Thiocarbamide or Sulfourea White crystal powder, bitter-taste, combustible Molecular Formula: (NH2)2CS

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               -----

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