Registration Dossier
Registration Dossier
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EC number: 200-543-5 | CAS number: 62-56-6
Endpoint summary
Administrative data
Description of key information
Thiourea is a colourless/white and odourless organic solid.
According to Ullmann's Encyclopedia thiourea has no sharp melting point, as it rearranges relatively rapidly to NH4SCN from 135°C on.
The substance has a relative density of 1.405 g/cm³ at 20 °C.
It decomposes before boiling.
The substance as manufactured has a median particle size of 482.96 µm, with approximately 90 % of the mass smaller than 808.65 µm.
The vapour pressure of thiourea is negligibly low (9.975E-08 hPa at 20 °C).
Thiourea is a hydrophilic compound (log Kow -0.92)
Thiourea is very soluble in water (137 g/L at 20 °C)
The solubility in organic solvents/fat is not considered a relevant property of this substance as it will essentially be insoluble in non-polar solvents.
Thiourea has a surface tension of 65.4 mN/m at 20 °C.
Thiourea is not highly flammable.
Additional information
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