Tricopper bis(orthophosphate)

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Testing was conducted between 05 October 2009 and 06 October 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study was conducted in compliance with agreed protocols with no or minor deviations from standard test guidelines and/or minor methodological deficiencies which do not affect the quality of relevant results.

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Date of GLP Inspection: 19 August 2008 Date of Signature on Certificate: 4 March 2009

Type of method:

other: differential scanning calorimetry

Melting / freezing pt.:

> 723 K

See attached documents for thermograms.

Thermographic data for Determinations 1 and 2 are shown in the following tables.

Table 4.2 Thermographic Data - Determination 1

Thermal Event	Interpretation	Temperature
		°C	K
Onset of endotherm	Loss of volatiles	188.09	461
Onset of endotherm	Loss of volatiles	256.78	530

Table 4.3 Thermographic Data - Determination 2

Thermal Event	Interpretation	Temperature
		°C	K
Onset of endotherm	Loss of volatiles	188.60	462
Onset of endotherm	Loss of volatiles	257.72	531

Conclusions:

The test material was determined to have a melting temperature of greater than 723 K. The test material was identified as undergoing dehydration at approximately 461 K and 530 K. These thermal events were not associated with a phase transition (i.e. melting) of the test material.

Executive summary:

The test material was determined to have a melting temperature greater than 723 K, by differential scanning calorimetry, using ASTM E537-86, Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008. The test material was identified as undergoing dehydration from approximately 461 and 530 K. These thermal events were not associated with a phase transition (i.e. melting) of the test material.

Description of key information

Melting point: > 450°C (EU Method A.1)