Registration Dossier
Registration Dossier
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EC number: 271-411-2 | CAS number: 68555-06-6 An inorganic pigment that is the reaction product of high temperature calcination in which chromium (III) oxide, iron (III) oxide, and manganese (III) oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of spinel.
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Remarks:
- Only one measurement was made during the DTA.
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 51004 (2006) " Determination of melting temperatures of crystalline materials using differential thermal analysis"
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Remarks:
- Differental Thermal analysis
- Melting / freezing pt.:
- > 1 000 °C
- Conclusions:
- The pigment shows no significant thermal changes from 25 to 1000 °C.
Reference
The pigment shows no significant thermal changes from 25 to 1000 °C.
Description of key information
The melting point of the substance spinels, chromium iron manganese brown is > 1000 °C.
Key value for chemical safety assessment
Additional information
The substance spinels, chromium iron manganese brown shows no significant thermal changes from 25 to 1000 °C.
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