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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:
May 2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
no
Type of method:
thermal analysis
Remarks:
DSC (ASTM D3418)
Key result
Melting / freezing pt.:
< -67.2 °C
Atm. press.:
1 atm
Decomposition:
no
Sublimation:
no

 

RESULTS/CONCLUSION

The DSC scan indicated that DOTP is a glassy substance and does not exhibit a melting point down to a temperature of -140 ⁰C. There is a glass transition temperature below -67.2 ⁰C, therefore the sample is not considered a solid at temperatures above -67.2 ⁰C. The melting point is reported as <-67.2 ⁰C.

 

 

Executive summary:

The DSC scan indicated that DOTP is a glassy substance and does not exhibit a melting point down to a temperature of -140 ⁰C. There is a glass transition temperature below -67.2 ⁰C, therefore the sample is not considered a solid at temperatures above -67.2 ⁰C. The melting point is reported as <-67.2 ⁰C.

Description of key information

The melting point is reported as <-67.2 ⁰C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-67.2 °C

Additional information