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Link to relevant study record(s)

flammable solids
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Description of key information

No study has been performed on magnesium bis(dihydrogenorthophosphate) for the endpoint 'flammability'. An adaptation from the standard testing regime is justified on the following basis:
Magnesium bis(dihydrogenorthophosphate) is not considered to be flammable. The substance is handled and used in air and therefore spontaneous ignition in air (pyrophoricity) is not anticipated. In addition, the substance is not known to be flammable in contact with water.
According to the guidance on information requirements and chemical safety assessment Chapter R.7a section inorganic compounds where the inorganic element is in its highest possible oxidation state are incapable of further reaction with oxygen and can thus be designated as non-flammable. The phosphorus present in magnesium bis(dihydrogenorthophosphate) is already present in the highest oxidation phase and therefore testing for flammability isconsidered to be scientifically unjustified.

Key value for chemical safety assessment

non flammable

Additional information

Justification for classification or non-classification

In accordance with Regulation (EC) No. 1272/2008 (EU CLP), magnesium bis(dihydrogenorthophosphate) is not considered to be flammable and is therefore not classified.

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