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:
15 November 2017 to 15 November 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
capillary method
Specific details on test material used for the study:
Name: Cadmium selenide
Batch/Lot number: 270018
Appearance: Black powder
CAS number: 1306-24-7
Purity: 99.999%
Expiry (Retest) date: 24 August 2020
Storage conditions: Controlled room temperature (in a tight closed container)
Safety precautions: Enhanced safety precautions were applied considering the supplied safety datasheet to assure personnel health and safety.
Key result
Melting / freezing pt.:
> 400 °C
Decomposition:
no
Sublimation:
no
Remarks on result:
other: The test was carried out at air atmospheric pressure and room temperature

Preliminary test

The test item did not melt.

Main test

No melting point was observed up to 400°C.

No physical change of colour or form was observed, there was no visual indication of decomposition.

Conclusions:
No melting point was observed up to 400°C.

No physical change of colour or form was observed, there was no visual indication of decomposition.
Executive summary:

The objective of the study was to determine the melting point or melting range of the test item. A small amount of the test item was placed in a capillary tube and packed tightly, then heated in the electronic controlled sample block and the temperature around the sample was displayed. The sample was observed visually while raising the temperature at an appropriate rate in an appropriate range. The initial and final melting temperatures were determined.

The study was conducted in accordance with the following test guidelines in a GLP compliant laboratory:

Commission Regulation (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), Method A.1, Official Journal of the European Union L 142 of31 May 2008

Organisation for Economic Co-operation and Development (OECD), Guidelines for Testing of Chemicals, Guideline No. 102, “Melting Point/ Melting Range”; adopted July 27, 1995

 

No melting point was observed up to 400°C, therefore the melting point is >400°C.No physical change of colour or form was observed, there was no visual indication of decomposition.

 

Description of key information

Key value determined in a GLP accredited laboratory study using relative self-ignition test, in accordance with OECD Guideline 102 (Melting point / Melting Range) and EU Method A.1 (Melting / Freezing Temperature).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
400 °C

Additional information

The objective of the study was to determine the melting point or melting range of the test item. A small amount of the test item was placed in a capillary tube and packed tightly, then heated in the electronic controlled sample block and the temperature around the sample was displayed. The sample was observed visually while raising the temperature at an appropriate rate in an appropriate range. The initial and final melting temperatures were determined.

The study was conducted in accordance with the following test guidelines in a GLP compliant laboratory:

Commission Regulation (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), Method A.1, Official Journal of the European Union L 142 of31 May 2008

Organisation for Economic Co-operation and Development (OECD), Guidelines for Testing of Chemicals, Guideline No. 102, “Melting Point/ Melting Range”; adopted July 27, 1995

 

No melting point was observed up to 400°C, therefore the melting point is >400°C.No physical change of colour or form was observed, there was no visual indication of decomposition.