Registration Dossier

Physical & Chemical properties

Vapour pressure

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13 July 2017 - 28 July 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes
Type of method:
effusion method: isothermal thermogravimetry
Key result
Temp.:
20 °C
Vapour pressure:
< 0 Pa
Temp.:
25 °C
Vapour pressure:
< 0 Pa

Table 1          
Results of the Vapour pressure Isothermal TGA Analysis

Temperature
[
°C]

Weight loss
g/min]

νT
[g/cm2/h]

logνT

logPT

PT
[Pa]

200

6.72418

8.03 x 10-4

-3.10

1.08

12

 

5.33713

6.37 x 10-4

-3.20

0.96

9.0

205

6.52893

7.79 x 10-4

-3.11

1.07

12

 

5.66605

6.76 x 10-4

-3.17

0.99

9.8

          210        

6.54967

7.82 x 10-4

-3.11

1.07

12

 

5.82232

6.95 x 10-4

-3.16

1.00

10

215

6.54106

7.81 x 10-4

-3.11

1.07

12

 

5.57015

6.65 x 10-4

-3.18

0.98

9.5

220

6.26037

7.47 x 10-4

-3.13

1.04

11

 

5.47011

6.53 x 10-4

-3.19

0.97

9.3

225

5.58645

6.67 x 10-4

-3.18

0.98

9.6

 

4.50574

5.38 x 10-4

-3.27

0.86

7.3

230

4.57443

5.46 x 10-4

-3.26

0.87

7.4

 

3.73337

4.46 x 10-4

-3.35

0.76

5.8

 

Conclusions:
The vapour pressure of Reaction products of monoethanolamine and boric acid (1:1) in a EU Method A.4 study conducted under GLP condition was determined to be < 1.3 x 10(-8) Pa and < 3.9 x 10(-8) Pa at 20°C (293K) and 25°C (298K) respectively.


Executive summary:

The isothermal TGA effusion method was applied for the determination of the vapour pressure of MEA Polyborate 1:1.

The vapour pressure of the test item at 20°C (293K) and 25°C (298K) was:

 

20°C

25°C

 

[Pa]

[mm Hg]

[Pa]

[mm Hg]

Test item

< 1.3x10-8

< 1.0x10-10

< 3.9x10-8

< 3.0x10-10

Description of key information

The vapour pressure of Reaction products of monoethanolamine and boric acid (1:1) in a EU  Method A.4 study conducted under GLP condition was determined to be < 1.3 x 10(-8) Pa and < 3.9 x 10(-8) Pa at 20°C (293K) and 25°C (298K) respectively.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
20 °C

Additional information