Reaction product with n-butanol of high-boiling stream resulting from the hydroxylation, oxidative cleavage and hydrolysis of vegetable oil saturated and unsaturated C16-C22 triglycerides.

Vapour pressure

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

vapour pressure

Type of information:

(Q)SAR

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Justification for type of information:

The constituent was inside the applicability domain of the used Qsar

Qualifier:

no guideline required

Principles of method if other than guideline:

It is a Qsar evaluation, EPISUITE of US-EPA was used (modified Grain method was applied)

Type of method:

other: Qsar

Test no.:

#1

Temp.:

25 °C

Vapour pressure:

0 Pa

Modified Grain method

Conclusions:

The vapour pressure of this constituent was evaluated to be 5.3E-005 Pa at 25 °C

Reference 2

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

disregarded due to major methodological deficiencies

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

unsuitable test system

Qualifier:

no guideline followed

Principles of method if other than guideline:

An instrument was used to determine automatically the vapour pressure for a range of temperatures. The principle of the instrument is based on the measurement of the vapour pressure after creating the vacuum. The vacuum in the cilinder was produced by expansion of a piston after the introduction of the sample and closing of the inlet valve.

GLP compliance:

no

Other quality assurance:

other: Minivap VPXpert (Grabner Instruments) was used to determine the vapour pressure

Type of method:

other: Minivap VPXpert (Grabner Instruments) was used to determine the vapour pressure

Temp.:

30 °C

Vapour pressure:

0.9 kPa

Temperature, °C	Vapour pressure, kPa
30	0.9
35	1.3
40	1.7
45	2.2
50	2.7
55	3.4
60	4.1
65	4.8
70	5.4
75	6.2
80	7.2
85	8.3
90	9.6
95	11.1
100	12.5

Conclusions:

The vapour pressure at 30°C was determined to be 0.9 kPa.

Executive summary:

The vapour pressure was determined for temperatures ranging from 30 to 100 °C using a Minivap VPXpert (Grabner Instruments). The vapour pressure at 30°C was determined to be 0.9 kPa.

Description of key information

The vapour pressure at 30°C was determined to be 0.9 kPa. This value was desregarded in consideration of its too high value for this substance that is a heavy viscous oil.

Key value for chemical safety assessment

Vapour pressure:

0.004 Pa

at the temperature of:

25 °C

Additional information

The vapour pressure was determined for temperatures ranging from 30 to 100 °C using a Minivap VPXpert (Grabner Instruments). The vapour pressure at 30°C was determined to be 0.9 kPa. After a deep control with a Qsar tool (EPISUITE) of the vapour pressure of the constituents for risk assessment a representative value of..0.004 was used (correspondent to the most volatile constituents of the substance)