Registration Dossier
Registration Dossier
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EC number: 300-212-6 | CAS number: 93924-19-7 Hollow ceramic spheres formed as a part of the ash in power stations burning pulverized coal. Composed primarily of the oxides of aluminium, iron and silicon and contain carbon dioxide and nitrogen within the sphere.
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:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM C24-89
- GLP compliance:
- no
- Melting / freezing pt.:
- 1 730 °C
- Remarks on result:
- other: Raw Cenospheres
- Melting / freezing pt.:
- 1 730 °C
- Remarks on result:
- other: Processed Cenospheres
- 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:
- other: study report basic data given
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 51730
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Remarks:
- Ash fusion test as per DIN 51730
- Melting / freezing pt.:
- >= 1 260 - <= 1 560 °C
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: study report basic data given
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 51730
- GLP compliance:
- no
- Melting / freezing pt.:
- >= 1 240 - 1 690 °C
Referenceopen allclose all
Initial deformation temperature (IT), oxidising: 1290 °C
Spherical temperature, oxidising: 1490 °C
Hemispherical temperature (HT), oxidising: 1510 °C
Fluid temperature (FT), oxidising: 1540 °C
Initial deformation temperature (IT), reducing: 1260 °C
Spherical temperature, reducing: 1480 °C
Hemispherical temperature (HT), reducing: 1520 °C
Fluid temperature (FT), reducing: 1560 °C
Initial deformation temperature (IT), oxidising: 1280 °C
Spherical temperature, oxidising: 1640 °C
Hemispherical temperature (HT), oxidising: 1660 °C
Fluid temperature (FT), oxidising: 1580 °C
Initial deformation temperature (IT), reducing: 1240 °C
Spherical temperature, reducing: 1650 °C
Hemispherical temperature (HT), reducing: 1670 °C
Fluid temperature (FT), reducing: 1690 °C
Description of key information
Initial deformation temperature (IT), oxidising: 1290 °C
Spherical temperature, oxidising: 1490 °C
Hemispherical temperature (HT), oxidising: 1510 °C
Fluid temperature (FT), oxidising: 1540 °C
Initial deformation temperature (IT), reducing: 1260 °C
Spherical temperature, reducing: 1480 °C
Hemispherical temperature (HT), reducing: 1520 °C
Fluid temperature (FT), reducing: 1560 °C
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 1 260 °C
Additional information
Melting range : 1260 - 1560 °C
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