Registration Dossier
Registration Dossier
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EC number: 807-595-3 | CAS number: 6965-58-8
Endpoint summary
Administrative data
Description of key information
Appearance / physical state / colour
The substance N-Isobutyrylurea is a colourless and odourless solid.
Melting point / freezing point
The melting range of N-Isobutyryl-thiourea is 114 - 116 °C.
Flash point
In accordance with column 2 of REACH Annex VII, the study does not need to be conducted as N-Isobutyryl-thiourea is solid.
The flash point is a key measure of the flammability of a liquid. It measures the lowest temperature at which the vapour/air mixture above the liquid can be ignited.
Auto flammability
Two tests for dusty N-Isobutyryl-thiourea are available evaluating the auto-flammability on a hot surface for deposited and dispersed N-Isobutyryl-thiourea. No auto-ignition of deposited N-Isobutyryl-thiourea dust occurred on surfaces until 360°C. Nevertheless the autoflammabilty temperature of dispersed dust of N-Isobutyryl-thiourea was tested to be 375 °C.
Flammability
N-Isobutyryl-thiourea can be ignited but the ignition process was terminated rapidly. Therefore N-Isobutyryl-thiourea is considered to be not highly flammable.
Explosivness
The mechanical sensitivity (shock) of the test substance according to a test method similar to guideline EU A.14 was determined. The tests for mechanical sensitivity to shock showed no explosive properties of N-Isobutyryl-thiourea.
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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