Octadecan-1-ol

Melting point / freezing point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010-01-06

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods with acceptable restrictions

Remarks:

Test procedure in accordance with national standard methods (ASTM) without GLP.

Qualifier:

according to guideline

Guideline:

other: ASTM-D97

Deviations:

no

GLP compliance:

no

Type of method:

pour point

Key result

Melting / freezing pt.:

57 °C

Atm. press.:

ca. 1 atm

Decomposition:

no

Sublimation:

no

Measurement

(repeat determination)

Pour Point:57°C / 57°C

Conclusions:

A pour point value of 57°C at atmospheric pressure was determined for the substance using a relevant test method. The result is considered to be reliable.

Executive summary:

The pour point of Octadecan-1 -ol was assessed according to ASTM-D97. The pour point was dertermined to be 57 °C at atmospheric pressure.

Reference 2

Endpoint:

melting point/freezing point

Type of information:

other: Data obtained from a handbook

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Principles of method if other than guideline:

No information available regarding guideline or methodology. The value is rounded to the nearest 0.1ºC.

GLP compliance:

not specified

Melting / freezing pt.:

59.5 °C

Remarks on result:

other: The atmospheric pressure at which this result was determined is not stated but it is consistent with expected properties at standard pressure.

Melting / freezing pt.:

59 - 60 °C

Remarks on result:

other: The pressure conditions for the measurement are not stated. This value is taken from an older edition of the Handbook (1990)

Conclusions:

A melting point value of 59-60ºC was reported in a handbook or collection of reliable data which has been subject to peer-review and in which the original data sources are traceable. The result is considered to be reliable.

Reference 3

Endpoint:

melting point/freezing point

Type of information:

other: Data obtained from a secondary source

Adequacy of study:

supporting study

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

secondary literature

Melting / freezing pt.:

58 °C

Conclusions:

A melting point value of 58°C was reported for the substance in a secondary source to which reliability could not be assigned.

Reference 4

Endpoint:

melting point/freezing point

Type of information:

other: Data obtained from a secondary source

Adequacy of study:

supporting study

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

secondary literature

Melting / freezing pt.:

59.5 °C

Conclusions:

A melting point value of 59.5°C was reported for the substance in a secondary source to which reliability could not be assigned.

Description of key information

The pour point of octadecan-1-ol is 57°C at 1013 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

57 °C

Additional information

A measured pour point value of 57°C at 1013 hPa was determined in accordance with ASTM-D97 test method.The result is considered to be reliable and is selected as key study.

It is supported by a value of 59-60°C taken from a reliable handbook, and various consistent results from other secondary sources.

Discussion of trends in the Category of C6-24 linear and essentially-linear aliphatic alcohols:

As the chain length increases, melting point increases. This is because molecular weight is higher and intermolecular forces in the substance are all higher.