Pentane, 1,5-diisocyanato-

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Test procedure in accordance with generally accepted scientific standards and described in sufficient detail, but not performed under GLP

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Deviations:

no

GLP compliance:

no

Type of method:

static method

Remarks:

based on a capacitance manometer

Temp.:

20 °C

Vapour pressure:

3.2 Pa

Temp.:

50 °C

Vapour pressure:

32.3 Pa

Temp.:

55 °C

Vapour pressure:

46.6 Pa

For every temperature, a minimum of three measurements were performed.

Conclusions:

The vapor pressure was calculated to be 3.2 Pa at 20 °C, 32.3 Pa at 50 °C and 46.6 Pa at 55 °C .

Executive summary:

According to OECD Guideline 104 the vapor pressure is measured as 3.2 Pa at 20 °C, 32.3 Pa at 50 °C and 46.6 Pa at 55 °C. In this method, appropriate for accurate measurements down to 0.1 Pa, the compound is placed at the bottom of a cylindrical cell, at controlled temperature, and connected to a previously evacuated space to which the pressure sensor is also connected. The compound is then allowed to evaporate until the equilibrium pressure at the temperature of the sample is achieved.

Description of key information

The vapor pressure was mesured to be 3.2 Pa at 20 °C, 32.3 Pa at 50 °C and 46.6 Pa at 55 °C .

Key value for chemical safety assessment

Vapour pressure:

3.2 Pa

at the temperature of:

20 °C