Cerium doped lutetium yttrium orthosilicate

Explosiveness

Link to relevant study record(s)

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

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
According to CLP Annex I, section 2.1.1, an explosive substance or mixture is characterised as – among others - "a solid or liquid substance or mixture of substances which is in itself capable by chemical reaction of producing gas at such a temperature and pressure and at such a speed as to cause damage to the surroundings." The test item is a stable inorganic compound which is manufactured by smelting the underlying metal oxides. Taking into account the starting materials (metal oxides of lutetium, yttrium, silicium and cerium) and the conditions during the production process of the test item (processing of smelting at high temperatures) it can be concluded that eventually incorporated or temporarily formed explosive constituents are destroyed and that the substance does not contain relevant functional groups, such as an azide or peroxo group, known to contribute to explosivity. Against this background a study to determine explosive properties of the test item is considered to be scientifically not necessary under REACH.

Description of key information

According to CLP Annex I, section 2.1.1, an explosive substance or mixture is characterised as – among others - "a solid or liquid substance or mixture of substances which is in itself capable by chemical reaction of producing gas at such a temperature and pressure and at such a speed as to cause damage to the surroundings." The test item is a stable inorganic compound which is manufactured by smelting the underlying metal oxides. Taking into account the starting materials (metal oxides of lutetium, yttrium, silicium and cerium) and the conditions during the production process of the test item (processing of smelting at high temperatures) it can be concluded that eventually incorporated or temporarily formed explosive constituents are destroyed and that the substance does not contain relevant functional groups, such as an azide or peroxo group, known to contribute to explosivity. Against this background a study to determine explosive properties of the test item is considered to be scientifically not necessary under REACH.  

Key value for chemical safety assessment

Explosiveness:

non explosive