Icosan-1-ol

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010-01-13

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 D 2879

Deviations:

no

GLP compliance:

no

Type of method:

isoteniscope

Key result

Test no.:

#1

Temp.:

38 °C

Vapour pressure:

< 0.001 mBar

Remarks on result:

other: measured 100 °F

Measurement

Vapor Pressure at 100°F: <0.001 mm Hg

Conclusions:

A vapour pressure value of <0.001 mBar (<0.1 Pa) at 38°C was determined for the substance using a relevant test method. The result is considered to be reliable.

Executive summary:

Icosan-1 -ol was determined according ASTM D 2879. The vapour pressure was determined to be <0.001mBar at 100 °F (38°C).

Description of key information

The vapour pressure of a commercial sample of icosan-1-ol is < 1E-3 mBar (equivalent to < 0.1 Pa) at 38°C. A quantitative value of 1.5E-05 Pa at 25°C is available for the pure alcohol from a reliable reference source (Daubert and Danner, 1989).

Key value for chemical safety assessment

Vapour pressure:

0 Pa

at the temperature of:

25 °C

Additional information

A vapour pressure value of <1.0E-03 mBar (<0.1 Pa) at ca. 38°C was determined for icosan-1-ol with the use of an isoteniscope method in accordance with ASTM D 2879. The result is considered to be reliable.

It is supported by a value of 1.5E-05 Pa at 25°C, taken from a reliable reference source (Daubert and Danner, 1989).

The quantified value at ambient temperature from Daubert and Danner is used in environmental modelling.

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

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