Registration Dossier

Physical & Chemical properties

Explosiveness

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Description of key information

Explosiveness: Not explosive

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

The molecule has no chemical groups that are associated with explosive properties. Therefore, in accordance with Column 2 of REACH Annex VII, there is no need to conduct the explosive properties study. However, like many chlorosilanes, it has an oxygen balance above -200. Experimental explosivity data is read-across as a supporting data from trichloro(methyl)silane. The calculated oxygen balance for the registered substance chloro(dimethyl)vinylsilane is -166 and that of trichloro(methyl) silane is -37. Trichloro(methyl)silane was found to be not explosive in a reliable standard study (EU Method A.14, reliability 1; read-across conclusion is given reliability 2). It can therefore be concluded that the presence of chloro group in an organosilicon compound is not associated with explosive properties. Additional information is given in a supporting report (PFA 2013c) attached in Section 13 of the REACH technical dossier.

Justification for classification or non-classification

There is no evidence to suggest that the substance should be classified for this endpoint.