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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-07-10
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Regulation (EC) No 440/2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: EU Method A.2 (Boiling Temperature)
Version / remarks:
Regulation (EC) No 440/2008
Deviations:
no
GLP compliance:
no
Type of method:
thermal analysis
Remarks:
Differential scanning calorimetry (DSC)
Key result
Melting / freezing pt.:
> 310 °C
Decomposition:
no
Decomp. temp.:
> 310 °C
Sublimation:
no
Remarks on result:
other: No departure from the base line of the heat flow record was observed that might indicate a melting or decomposition process while the substance was heated up to a temperature of 310°C (583 K).
Conclusions:
Melting point > 310°C
Executive summary:

The melting point of substance "reaction mass of calcium hydrogen phosphonate and dialuminium tricalcium hexaoxide" was measured in a study according to EU Methods A.1 (Melting / Freezing Temperature) and A.2 (Boiling Temperature) Regulation (EC) No. 440/2008. Differential scanning calorimetry (DSC) as thermal analysis method was used. According to ECHA REACH TGD R.7a, this method can be used to evaluate melting and boiling point in a single test. No departure from the base line of the heat flow record was observed that might indicate a melting, boiling or decomposition process while the substance was heated up to and including a temperature of 310°C (583 K).

Melting point > 310°C

Description of key information

> 583 K (310°C) 
EU Methods A.1 (Melting / Freezing Temperature) and A.2 (Boiling Temperature) Regulation (EC) No. 440/2008. Differential scanning calorimetry (DSC) as thermal analysis method was used.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
310 °C

Additional information

The melting point of substance "reaction mass of calcium hydrogen phosphonate and dialuminium tricalcium hexaoxide" was measured in a study according to EU Methods A.1 (Melting / Freezing Temperature) and A.2 (Boiling Temperature) Regulation (EC) No. 440/2008. Differential scanning calorimetry (DSC) as thermal analysis method was used. According to ECHA Guidance R.7a, subchapter R.7.1.3.3 (2017), this method can be used to evaluate melting and boiling point in a single test.

No departure from the base line of the heat flow record was observed that might indicate a melting, boiling or decomposition process while the substance was heated up to and including a temperature of 310°C (583 K). Thus, melting point is > 583K (310°C).

To fill information on melting point into Chesar via IUCLID, the value of 310°C has been allocated as key value.