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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
equivalent or similar to
Guideline:
other: N4 (Modified Method) Self Heating Substances
Deviations:
yes
Remarks:
the test item was only available in very limited amounts and was extremely expensive. Therefore, in order to obtain as much information as possible on the self-heating properties of the test item a modified procedure was employed
GLP compliance:
yes (incl. certificate)
Remarks on result:
other: The temparature of the test item exceeded the oven temperature by approximately 70°C during the period the oven temparature was held at 140°C.

The temperature of diammonium sodium hexakis(nitrito-N)rhodate exceeded the oven temperature by approximately 70 °C during the period the oven temperature was held at 140 °C. The result is considered positive.

Conclusions:
Diammonium sodium hexakis(nitrito-N)rhodate is classified in Category 1 for self-heating substances and mixtures, in accordance with Regulation (EC) 1272./2008 of 16 December 2008 on Classification, Labelling and Packaging of Substances and Mixtures, as the temperature of the test item exceeded the oven temperature by approximately 70 °C during the period the oven temperature was held at 140 °C.
Executive summary:

Atwal and Tremain (2011) is a GLP compliant study following a modified UN N4 method and is considered suitable for use as the key study for this endpoint.

The temperature of diammonium sodium hexakis(nitrito-N)rhodate exceeded the oven temperature by approximately 70 °C during the period the oven temperature was held at 140 °C. The result is considered positive, therefore, diammonium sodium hexakis(nitrito-N)rhodate is classified in Category 1 for self-heating substances and mixtures, in accordance with Regulation (EC) 1272./2008 of 16 December 2008 on Classification, Labelling and Packaging of Substances and Mixtures.

Description of key information

Diammonium sodium hexakis(nitrito-N)rhodate is classified in Category 1 for self-heating substances and mixtures, in accordance with Regulation (EC) 1272./2008 of 16 December 2008 on Classification, Labelling and Packaging of Substances and Mixtures, as the temperature of the test item exceeded the oven temperature by approximately 70°C during the period the oven temperature was held at 140°C.

Key value for chemical safety assessment

Additional information

Atwal and Tremain (2011) is a GLP compliant study following a modified UN N4 method and is considered suitable for use as the key study for this endpoint.

The temperature of diammonium sodium hexakis(nitrito-N)rhodate exceeded the oven temperature by approximately 70°C during the period the oven temperature was held at 140°C. The result is considered positive, therefore, diammonium sodium hexakis(nitrito-N)rhodate is classified in Category 1 for self-heating substances and mixtures, in accordance with Regulation (EC) 1272./2008 of 16 December 2008 on Classification, Labelling and Packaging of Substances and Mixtures.