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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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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
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. QA statement)
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.