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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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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:
other: GLP compliant, guideline study, available as unpublished report, acceptable without restrictions
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:
no self ignition observed under the test conditions

Platinum (anhydrous powder) showed no signs of self-ignition or self-heating over the duration of the test

Conclusions:
Platinum (anhydrous powder) showed no signs of self-ignition or self-heating over the duration of the test.
Executive summary:

This is a GLP compliant study following a modified N4 method for self-heating substances and is considered suitable for use as the key study for this endpoint. Platinum (anhydrous powder) showed no signs of self-ignition or self-heating over the duration of the test. As there were no signs of self-ignition or self-heating, a negative result was obtained.

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:
other: GLP compliant, guideline study, available as unpublished report, acceptable without restrictions
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:
no self ignition observed under the test conditions

Platinum (black) showed no signs of self-ignition or self-heating when the test item was held at 140 °C for 24 hours. Additionally, when the test item was heated from 140 to 400 °C, the sample temperature did not exceed the oven temperature by greater than 60 °C.

Conclusions:
Platinum (black) showed no signs of self-ignition or self-heating when the test item was held at 140 °C for 24 hours. Additionally, when the test item was heated from 140 to 400 °C, the sample temperature did not exceed the oven temperature by greater than 60 °C.
Executive summary:

This is a GLP compliant study following a modified N4 method for self-heating substances and is considered suitable for use as the key study for this endpoint. Platinum (black) showed no signs of self-ignition or self-heating when the test item was held at 140 °C for 24 hours. Additionally, when the test item was heated from 140 to 400 °C, the sample temperature did not exceed the oven temperature by greater than 60 °C.

Description of key information

Platinum powder and Platinum (black) showed no signs of self-ignition or self-heating. 

Key value for chemical safety assessment

Additional information

Samples of Platinum powder and Platinum black were tested in GLP-compliant, modified N4 method self-heating studies (Atwal and Tremain 2011, Walker 2011). These are considered suitable for use as key studies for this endpoint.

Platinum powder and Platinum (black) showed no signs of self-ignition or self-heating.