Carbazamidine sulphate

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

GLP compliance:

no

Type of method:

gas saturation method

Test material

Test material information

Constituent 1

Reference substance name:

Guanidinium phosphate (1:1)

EC Number:

226-551-9

EC Name:

Guanidinium phosphate (1:1)

Cas Number:

5423-22-3

Molecular formula:

CH5N3.H3O4P

IUPAC Name:

Guanidium phosphate (1:1)

Results and discussion

Vapour pressure

Vapour pressure 1

Key result

Temp.:

20 °C

Vapour pressure:

< 0.015 Pa

Vapour pressure 2

Key result

Temp.:

25 °C

Vapour pressure:

< 0.018 Pa

Any other information on results incl. tables

The vapour pressure at 25 ° C +/- 0.5 °C was determined to be <0.018 Pa and vapour pressure at 20 °C +/- 0.5 °C was determined to be <0.015 Pa; these values are based on the theoretical calculation detailed below assuming that the concentration in each test solution was lower than the LOD of 0.5 mg/L.

In both cases the vapour pressure value obtained from the slowest gas flow, and therefore the highest value, is reported and not the average value, due to the fact that gas saturation is not confirmed.

Applicant's summary and conclusion

Conclusions:

The vapour pressure of the test substance was determined to be <0.018 Pa at 25 °C and <0.015 Pa at 20 °C by using the gas saturation method, in accordance with EU A.4 and OECD 104 guidelines.