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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Testing was conducted between 07 October 2009 and 19 January 2010.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
Date of GLP inspection: 2009-09-15 Date of Signature on GLP certificate: 2009-11-26
Type of method:
other: Differential scanning calorimetry (DSC)
Melting / freezing pt.:
> 723 K
Remarks on result:
other: .

Please see Attachment 1 for Thermogram data.

Conclusions:
The test material was determined to have a melting temperature greater than 723 K.
This study was performed in accordance with an accepted method (EU Method A.1) and under the conditions of GLP.
This study is considered to be appropriate and reliable for use as a key study in accordance with Regulation (EC) No.1907/2006 (REACH). No further testing is required.
Executive summary:

Method

The determination was carried out by differential scanning calorimetry (DSC) using the procedure specified in ASTM E537-86, Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Conclusion

The test material was determined to have a melting temperature greater than 723 K.

Description of key information

The melting point of trisodium trimetaphosphate was determined according to EU Method A.1 (Melting / Freezing Temperature) and under the conditions of GLP. 

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
450 °C

Additional information

The test material was determined to have a melting temperature greater than 723 K.