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Auto flammability

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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)
Relative self-ignition temperature:
400 °C
Remarks on result:
other:
Remarks:
There were no signs of self-ignition or self-heating when triammonium hexachlororhodate was held at 140°C for 24 hours. However, when the test item was heated from 140 to 400°C, the sample temperature exceeded the oven temperature by greater than 60°C at an oven temperature of approximately 400 °C.

There were no signs of self-ignition or self-heating when triammonium hexachlororhodate was held at 140°C for 24 hours. However, when the test item was heated from 140 to 400°C, the sample temperature exceeded the oven temperature by greater than 60°C at an oven temperature of approximately 400 °C.

Conclusions:
There were no signs of self-ignition or self-heating when triammonium hexachlororhodate was held at 140°C for 24 hours. However, when the test item was heated from 140 to 400°C, the sample temperature exceeded the oven temperature by greater than 60°C at an oven temperature of approximately 400 °C.
Executive summary:

Walker and White (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.

There were no signs of self-ignition or self-heating when triammonium hexachlororhodate was held at 140°C for 24 hours. However, when the test item was heated from 140 to 400°C, the sample temperature exceeded the oven temperature by greater than 60°C at an oven temperature of approximately 400 °C.

Description of key information

There were no signs of self-ignition or self-heating when triammonium hexachlororhodate was held at 140°C for 24 hours. However, when the test item was heated from 140 to 400°C, the sample temperature exceeded the oven temperature by greater than 60°C at an oven temperature of approximately 400 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
400 °C

Additional information

Walker and White (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.

There were no signs of self-ignition or self-heating when triammonium hexachlororhodate was held at 140°C for 24 hours. However, when the test item was heated from 140 to 400°C, the sample temperature exceeded the oven temperature by greater than 60°C at an oven temperature of approximately 400 °C.