Tetrasodium 3,3'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(naphthalene-1,5-disulphonate)

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

03 March 2017 to 10 March 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

GLP compliance:

yes (incl. QA statement)

Type of method:

effusion method: vapour pressure balance

Test no.:

#1

Temp.:

25 °C

Vapour pressure:

0 Pa

Remarks on result:

other: measured over 150-160°C

Test no.:

#2

Temp.:

25 °C

Vapour pressure:

0 Pa

Remarks on result:

other: measured over 150-160 °C

Test no.:

#3

Temp.:

25 °C

Vapour pressure:

0 Pa

Remarks on result:

other: measured over 150-160°C

Test no.:

#4

Temp.:

25 °C

Vapour pressure:

0 Pa

Remarks on result:

other: measured over 150-160 °C

Test no.:

#5

Temp.:

25 °C

Vapour pressure:

0 Pa

Remarks on result:

other: measured over 150-160 °C

Test no.:

#6

Temp.:

25 °C

Vapour pressure:

0 Pa

Remarks on result:

other: measured over 150-160 °C

The values indicated are extrapolated (linear) from measurements between 150 and 160 °C. Seven runs were included in the study. The results of the last 6 runs showed that equilibrium had been reached and were used for calculations.

Conclusions:

The vapour pressure of the substance is 1.8E-08 Pa

Executive summary:

Using the vapour pressure balance method, the vapour pressure of the substance has been determined to be 1.8E-08Pa.

Description of key information

Using the vapour pressure balance method, the vapour pressure of the substance has been determined to be 1.8E-08Pa.

Key value for chemical safety assessment

Vapour pressure:

0 Pa

at the temperature of:

25 °C