1. Product introduction of Thiourea
Thiourea, white bright bitter crystal, soluble in cold water, ethanol, slightly soluble in ether, easy to deliquate in the air, at 150℃ into ammonium thiocyanate, has the reductivity,it can make free iodine to iodide ion reduction. Density: 1.41g/cm3
|
Appearance |
White crystal powder |
CAS |
62-56-6 |
Melting point |
171 °C |
|
EINECS No |
200-543-5 |
HS |
29309090.99 |
Boiling point |
263.89 °C(estimate) |
|
Chemical Formula |
CH4N2S |
UN |
3077 |
Molecular weight |
76.12 |
Another name: THU; Thiocarbamide; Thiurea; Isothiourea; sulfocarbamide, Thiourea 99%; thiocarbamide; sulfourea.
2. Product Parameter(Specification) of Thiourea
|
Item |
Index |
|||
|
I |
II |
|||
|
Superior |
Qualified |
|||
|
Appearance |
colorless crystal |
white crystal |
||
|
Purity, w/% ≥ |
99.5 |
99.0 |
98.5 |
|
|
Loss on drying, w/% ≤ |
0.20 |
0.40 |
0.50 |
|
|
Ignition residue, w/% ≤ |
0.01 |
0.10 |
0.15 |
|
|
Water insoluble, w/% ≤ |
0.01 |
0.02 |
0.05 |
|
|
Thiocyanate(as SCN), w/% ≤ |
0.005 |
0.02 |
0.05 |
|
|
Initial Melting Point /℃ ≥ |
173 |
171 |
170 |
|
|
Calcium ion, w/% ≤ |
0.005 |
-- |
-- |
|
|
Particle size, w/% |
d≥ 0.6mm |
≥90 |
-- |
-- |
Model I Thiourea Mainly used in optics, electronics, new energy materials and other industries.
Model II Thiourea Mainly used in printing and dyeing, medicine, pesticide, mineral processing and other basic chemical industry.
3. Product Feature And Application of Thiourea
1) Thiourea is the raw material for the synthesis of drugs,such as sulfathiazole, methionine and pig slices.
2) Thiourea is used as raw materials for dyes and dyeing auxiliaries, resins and press-plastic powder.
3) Thiourea can also be used as a vulcanization accelerator for rubber, a flotation agent for metal minerals, a catalyst for making phthalic anhydride and fumaric acid, as a metal corrosion inhibitor.
4) Thiourea in photographic materials,itcan be used as developer and toner.
5) Thiourea can also be used in electroplating industry.
6) Thiourea is also used in diazo photosensitive paper, synthetic resin coating, anion exchange resin, germination accelerator, fungicides and many other aspects.
7) Thiourea is also used as a fertilizer.
8) Thiourea is used in the manufacture of drugs, dyes, resins, press-plastic powder, rubber vulcanization accelerator, metal mineral flotation agent and other raw materials.
4. Product Details of Thiourea
Thiourea is highly reactive and can be used to prepare various compounds. It can react with a variety of oxidants to form organic compounds, and can also react with inorganic compounds to make soluble addition compounds.
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