Registration Dossier

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
melting point/freezing point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Justification for type of information:
Annex VII 7.2 Column 2 states the study does not need to be conducted below a lower limit of - 20 °C.
The Precision Petroleum Labs, Inc. test report and the Sigma-Aldrich SDS support the conclusion that the melting point is less than - 20 °C.
Reason / purpose for cross-reference:
data waiving: supporting information
Reason / purpose for cross-reference:
data waiving: supporting information
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
other: ASTM D-97
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
ASTM D97
GLP compliance:
no
Type of method:
pour point
Specific details on test material used for the study:
Product ID: 2-ethyl-2-oxazoline (ETOX from Alvin, TX)
Matrix type: Liquid
Key result
Melting / freezing pt.:
< -23 °C
Atm. press.:
ca. 1 atm
Remarks on result:
other: Reported as Pour Point, < -10 °F
Conclusions:
The test material has a pour point of < -23 °C ( < -10 °F).
Executive summary:

This value agrees with experience during use and handling.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Qualifier:
no guideline followed
Principles of method if other than guideline:
Literature value reported on SDS - no guideline reported.
GLP compliance:
not specified
Type of method:
other: Not specified
Melting / freezing pt.:
-62 °C
Conclusions:
The test material has a reported melting point of -62 °C (-80 °F) based on a literature value.
Executive summary:

This SDS value supports the measured value of pour point < - 23 °C.

Description of key information

The melting point is < -20 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-20 °C

Additional information

The melting point is < -20 °C. This conclusion is supported by the Petroleum Labs, Inc. measured pour point of < -23°C and the Sigma-Aldrich SDS which reports a melting point -62 °C.

The Zedi US Inc. study is disregarded. Values reported disagree with experience during manufacturing and use. Also, the value disagrees with secondary reference values and the subsequent re-testing of the material.