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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:
2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
other: ISO 11357-3:2011
Version / remarks:
DSC Method : Plastics-differential scanning calorimetry (DSC). Part 3 :Determination of temperature enthalphy of melting and crystallization
Standard : ISO 11357-3 :2011
Deviations:
not specified
Principles of method if other than guideline:
DSC: Plastics-differential scanning calorimetry (DSC).
Equipment: Differential scanning calorimeter, TA Instruments DSC Q20, no EQ661
Temperature program: 20-320°C at 20°C/min.
Sample holders: Crucible of aluminium
Sample size: 5.9 mg.
Atmosphere: Nitrogen
Ambient temperature: 23ºC
Relative humidity: 50%
GLP compliance:
no
Other quality assurance:
other: not specified
Type of method:
thermal analysis
Key result
Melting / freezing pt.:
>= 240.21 °C
Decomposition:
no
Sublimation:
no
Remarks on result:
other: Glass transition temperature is 61.85 °C
Conclusions:
Melting point of copper glucoheptonate is 240.21 °C and a glas transition temperature is 61.85 °C.
Executive summary:

Melting point of copper glucoheptonate was analysed by plastics-differential scanning calorimetry (DSC) (Part 3 :Determination of temperature enthalphy of melting and crystallization according to standard method: ISO 11357-3 : 2011). A decomposition before melting has not been observed.

In conclusion, according to DSC method melting point is 240.21 °C and a glas transition temperature is 61.85 °C.

Description of key information

Melting point of copper glucoheptonate was analysed by plastics-differential scanning calorimetry (DSC) (Part 3 :Determination of temperature enthalphy of melting and crystallization according to standard method: ISO 11357-3 : 2011). A decomposition before melting has not been observed.

In conclusion, according to DSC method melting point is 240.21 °C and a glas transition temperature is 61.85 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
240.2 °C

Additional information