Thiourea product introduction
White and shiny crystals. Bitter taste. Density 1.405.
Melting point 182 ~ 180ºC. More thermal decomposition.
The heating is soluble in water, soluble in ethanol, soluble in ether.
When the melt is partially formed by isomerization, the ratio of sulfur to ammonium is formed.
Used for the manufacture of drugs, dyes, resins, plastic powder and other raw materials, also used as a rubber vulcanization accelerator, metal minerals, such as the flotation agent.
The effect of hydrogen sulfide and lime into calcium hydrosulfide, and calcium cyanamide (base) and function. Can also be used to produce ammonium cyanide, or the role of amino cyanide and hydrogen sulfide
Appearance and properties: white light bitter crystal.
Melting point (ºC):176 ~ 178
Relative density (water =1): 1.41
Boiling point (ºC): decomposition
Molecular formula: CH4N2S
Molecular weight: 76.12
Octanol / water partition coefficient of value: 2.5
Solubility: soluble in cold water, ethanol, slightly soluble in ether.
Raw steam: pressure 0.8MPa (G)
According to the annual output of 10 thousand tons of thiourea.
Need reactor, filter, dryer and crystallizer