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Physical & Chemical properties

Melting point / freezing point

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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

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

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

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