Registration Dossier
Registration Dossier
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EC number: 255-707-9 | CAS number: 42204-14-8
Auto flammability
Administrative data
Link to relevant study record(s)
- 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: Modified method based on Regulation (EC) No. 1272/2008 of 16 December 2008, using a modified procedure of Test N.4 of the United Nations Recommendations of the Transport of Dangerous Goods, Manual of Tests and Criteria, 5th revised edition, 2009.
- Deviations:
- yes
- Remarks:
- UN N.4 Test uses large amount of test item. However, the test item was only available in very limited amounts and was extremely expensive, therefore a modified procedure was employed.
- GLP compliance:
- yes (incl. QA statement)
- Relative self-ignition temperature:
- 180 °C
- Remarks on result:
- other: No signs of self-heating when the test item was held at 140°C for 24 h. Self-heating occurred at 180 °C when test item was heated from 140 to 400°C.
- Conclusions:
- Self-heating occurred at 180°C for rhodium acetate.
- Executive summary:
Tremain and Atwal (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.
Self-heating occurred at 180°C for rhodium acetate.
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Principles of method if other than guideline:
- self–ignition capacity in an oven according to Grewer SOP SPZ- 126
- GLP compliance:
- not specified
- Relative self-ignition temperature:
- ca. 170 °C
- Remarks on result:
- other: from ca. 170°C exothermic behaviour with a max temp increase of ca. 165K observed
- Remarks:
- at atmospheric pressure
- Conclusions:
- The self-ignition temperature of Rhodium acetate is 170°C.
- Executive summary:
This study follows a standard guideline and, although non-GLP, is considered acceptable and suitable for use as a key study for this endpoint.
The self-ignition temperature of rhodium acetate is 170°C.
Referenceopen allclose all
No signs of self-heating when the test item was held at 140°C for 24 h. Self-heating occurred at 180 °C when test item was heated from 140 to 400°C.
Dust explosion test also conducted in a modified Hartmann-apparatus. An ignition source was able to cause a strong dust explosion.
Description of key information
The self-ignition temperature of rhodium acetate is 170°C.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 170 °C
Additional information
ATS (2001) follows a standard guideline and, although non-GLP, is considered acceptable and suitable for use as a key study for this endpoint. The self-ignition temperature of rhodium acetate was determined to be 170°C.
Tremain and Atwal (2011) is a GLP compliant study following a modified UN N$ method and is considered reliable and suitable for use as the key study for this endpoint. In this study the self-ignition temperature of rhodium acetate was determined to be 180°C.
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