Registration Dossier

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

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:
2016-10-24 until 2017-05-03
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
internal method 2011-0466801-94D (DTA/DSC), which corresponds to OECD Guidelines for Testing of Chemicals, Section 1 – Physical-Chemical Properties No: 102 and to Council Regulations EC No 440/2008, Guideline Part A– Methods for the Determination of Physico-Chemical Properties, A.1.
Principles of method if other than guideline:
Samples of the test item and of a reference material are subjected to the same controlled temperature programme. The difference in energy input necessary to maintain identical temperatures between the test item and the reference material is recorded. When the test item undergoes a phase transition, the corresponding change of enthalpy gives an endothermic (melting) or exothermic (freezing) deviation from the base line of the temperature and heat flow record.
GLP compliance:
yes
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Date of receipt: 2014-01-15
Expiry date: 2017-03-07
Remarks on result:
not determinable
Remarks:
Since no endothermic signal could be detected there is no indication for a melting point.

At room temperature the substance is solid.

Between 25 °C and 450 °C several exothermic phases in different temperature ranges were observed.

A first exothermic phase was detected between approx. 85 °C and 125 °C which could indicate a chemical change and / or decomposition of the test item. Between approx. 180 °C and 270 °C and approx. 295 °C and 350 °C two further exothermic effects were observed.

After the heating process a solid black residue remains in the crucible which indicates decomposition of the test item.

Conclusions:
Due to decomposition of the test item phosphorothioyltris(oxybenzene-4,1-diylcarbamoyloxyethane- 2,1-diyl) trisprop-2-enoate determination of the melting point was not possible.
Executive summary:

Melting point to the test item phosphorothioyltris(oxybenzene-4,1-diylcarbamoyloxyethane-2,1-diyl) trisprop-2-enoate was determined via Differential Thermal Analysis (DTA) / Differential Scanning Calorimetry (DSC). After the heating process a solid black residue remains in the crucible which indicates decomposition of the test item. Due to decomposition of the test item the determination of the melting point was not possible.

Description of key information

Due to decomposition of the test item phosphorothioyltris(oxybenzene-4,1-diylcarbamoyloxyethane-2,1-diyl) trisprop-2-enoate determination of the melting point was not possible.

Key value for chemical safety assessment

Additional information

After the heating process a solid black residue remains in the crucible which indicates decomposition of the test item.