Trimethyloctylammonium methyl sulphate

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2019.03.18~2019.04.12

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2019

Report date:

2019

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Version / remarks:

Vapour pressure was measured by effusion method: isothermal
thermogravimetry using the procedure specified in Method 104 of the OECD
TEST Guidelines for Testing of Chemicals, 23 March 2006.

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Type of method:

effusion method: vapour pressure balance

Test material

Test material information

Constituent 1

Reference substance name:

Trimethyloctylammonium methyl sulphate

EC Number:

265-332-2

EC Name:

Trimethyloctylammonium methyl sulphate

Cas Number:

65059-42-9

Molecular formula:

C11H26N.CH3O4S

IUPAC Name:

trimethyl(octyl)azanium methyl sulfate

Test material form:

solid

Results and discussion

Vapour pressure

Vapour pressure 1

Key result

Test no.:

#1

Temp.:

ca. 20 °C

Vapour pressure:

ca. 0.004 Pa

Vapour pressure 2

Key result

Test no.:

#2

Temp.:

ca. 25 °C

Vapour pressure:

ca. 0.005 Pa

Applicant's summary and conclusion

Conclusions:

The isothermal TGA effusion method was used for the determination of
vapour pressure of Trimethyloctylammonium methyl sulphate. Vapour
pressures of the test substance at 20℃ and 25℃ were 3.0 x 10-4 and 4.1 x 10-4
mmHg.