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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:
4 Sept 2017
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:
ASTM E 537-76
Deviations:
not specified
Principles of method if other than guideline:
Method Type: Differential Thermal Analysis
Method reference: Comparable to ASTM E 537-76 - standard method for assessing the thermal stabililty of chemicals
Equiment type: Mettler Toledo FP85/FP90
Method Conditions: Ramp from 50 C to 300 C at 5 C / min
GLP compliance:
not specified
Type of method:
thermal analysis
Specific details on test material used for the study:
Sample 1
Name: CETATS
Batch no: 99M1061L
Date of manufacture: 29/3/2012
Sample Purity: 99.5%
Date of analysis: 21/12/2016

Sample 2
Name: CETATS
Batch no: 99D1097T
Date of manufacture: 4/5/2016
Sample Purity: <99.5%
Date of analysis: 21/12/2016

Sample 3
Name: CETATS
Batch no: 99D1099T
Date of manufacture: 9/5/2012
Sample Purity: <100.1%
Date of analysis: 15/2/2016

Remarks on result:
not determinable
Remarks:
CETATS is a solid at ambient temperatures but its melting point could not be determined. CETATS exhibits two small endotherms in the 115-125 C region during differential thermal analysis. It could not be determined if these events were due to melting or solid phase transitions or both. CETATS decomposes at temperatures above 200 C. Results from 3 samples were found to be 209.7 C, 211.3 C, and 201.9 C.
Conclusions:
CETATS is a solid at ambient temperatures but its melting point could not be determined.
CETATS exhibits two small endotherms in the 115-125 C region during differential thermal analysis. It could not be determined if these events were due to melting or solid phase transitions or both.
CETATS decomposes at temperatures above 200 C. Results from 3 samples were found to be 209.7 C, 211.3 C, and 201.9 C.

Description of key information

CETATS is a solid at ambient temperatures but its melting point could not be determined.

CETATS exhibits two small endotherms in the 115-125 C region during differential thermal analysis. It could not be determined if these events were due to melting or solid phase transitions or both.

CETATS decomposes at temperatures above 200 C. Results from 3 samples were found to be 209.7 C, 211.3 C, and 201.9 C.

Key value for chemical safety assessment

Additional information