2-ethyl-2-oxazoline

Melting point / freezing point

Link to relevant study record(s)

Reference

Reference 1

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

Reference 2

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.

Reference 3

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.