Dimethyl adipate

Vapour pressure

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Qualifier:

no guideline available

Principles of method if other than guideline:

The transpiration method (also called gas saturation) involves passing a steady stream of an inert gas over or through the sample, which is held at constant temperature.

GLP compliance:

no

Type of method:

gas saturation method

Temp.:

21 °C

Vapour pressure:

2.84 Pa

An equation is given to calculate the vapor pressure as a function of temperature:

lnP = 337.7/R-97276.2/RT-94.8*ln(T/298.15)/R with R= 8.314472 SI unit and T in in Kelvin. In this equation, P is in Pascals.

Conclusions:

The vapour pressure of the substance is 2.5 Pa at 20 °C.

Reference 2

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Qualifier:

no guideline available

Principles of method if other than guideline:

The transpiration method (also called gas saturation) involves passing a steady stream of an inert gas over or through the sample, which is held at constant temperature.

GLP compliance:

no

Type of method:

gas saturation method

Temp.:

20 °C

Vapour pressure:

2.53 Pa

An equation is given to calculate the vapor pressure as a function of temperature:

ln(P)=39.9 -11475.0/T-11.4*ln((T/298.15) with T expressed in Kelvin. In this equation, P is in Pascals.

Reference 3

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Qualifier:

no guideline available

Principles of method if other than guideline:

The method is described in the following article: Hwang, S. M. et al. Isothermal vapor-liquid equilibria for mixtures of 4-methoxyphenol, catechol, and p-cresol. Fluid Phase Equilib. 2000, 172, 183 - 196.

GLP compliance:

no

Type of method:

static method

Temp.:

100 °C

Vapour pressure:

1 260 Pa

An equation is given to calculate the vapor pressure as a function of temperature:

lnP = 17.9128 -7255.259/(T+37.1978) with T expressed in Kelvin and P expressed in kPa.

Description of key information

The vapour pressure of the substance has been determined for two temperature ranges: 20 to 60 °C and 80 to 170 °C, leading to the modelization (equations) of this end point on these two ranges.

Key value for chemical safety assessment

Vapour pressure:

2.5 Pa

at the temperature of:

20 °C