Pentapotassium bis(peroxymonosulphate) bis(sulphate)

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Link to relevant study record(s)

Reference

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2007-12-07 - 2008-01-22

Reliability:

1 (reliable without restriction)

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

Deviations:

no

Principles of method if other than guideline:

NA

GLP compliance:

yes

Key result

Remarks on result:

no self-ignition observed up to the melting point

The sample began to exotherm at an oven temperature of approximately 127°C; a maximum sample temperature of 275°C was observed at a corresponding. Residual sample remaining after this exotherm showed two endotherms between approximately 175°C and 250°C, indicative of melting. Residues found below the empty screen sample cube after completion of the test tend to confirm this hypothesis.

Conclusions:

KMPS was not found to be a self-heating material per EEC test method A.16.

Executive summary:

The oven temperature was raised at a nominal rate of 0.5 °C/min as the internal temperature of the sample is monitored until either the sample or the oven temperature reaches 400 °C. The oven temperature at which the sample reaches 400 °C is called the self-ignition temperature. KMPS was not found to be a self-heating material per EEC test method A.16.

Description of key information

The test substance was not found to be a self-heating material according to EU Commission Directive 92/69  EEC Annex V test method A.16.