Registration Dossier

Physical & Chemical properties

Explosiveness

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Reference
Endpoint:
explosive properties of explosives
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties
the study does not need to be conducted because the substance contains chemical groups associated with explosive properties which include oxygen, but the calculated oxygen balance is less than - 200
other:

Description of key information

Dirubidium oxide does not exhibit explosive properties: it will not detonate or deflagrate, under conditions of excessive heating with or without confinement, impact, or friction to produce heat and or gas. There are no functional groups or other structural alerts associated with explosive properties or tendencies that would indicate that this substance will exhibit explosive properties and so it should be classified accordingly. Due to the high oxygen content, the calculated Oxygen Balance is less than -200, so the substance need not be classified. It is an inorganic solid with a high melting point that is thermally stable. Thermal stability of group 1 oxides increases down the group (as the size of the cation increases and polarising power of the cation decreases). Also experience from handling and manufacture confirms that dirubidium oxide has no explosive properties.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Justification for classification or non-classification