Dimethyldioctylammonium chloride

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

7th of August 2017 to 28th August 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

Specific details on test material used for the study:

Test Item: Bardac™ LF80 (Solvent Free)
Chemical name Dimethyldioctylammonium chloride
CAS No. 5538-94-3
EC No. 226-901-0
Chemical name Dimethyldioctylammonium chloride
Struktur / Structure
Molecular formula: C18H40ClN
Molecular weight 305.97g/mol
Appearance White waxy solid
Batch No. 6021-038
content %Active (MW = 312) 95.72
%Free Amine (MW = 262) 1.58
%Amine HCL (MW = 299) 0.11
%Moisture 0.49
%Ethanol 0.97
Certificate of Analysis Certificate of analysis of Bardac™ LF80 (Solvent Free) Lonza Ltd.
Storage conditions Ambient temperature, keep container tightly closed, dry
Date of production 2017-05-23
Expiry date 2019-05-23

Key result

Test no.:

#1

Temp.:

ca. 20 °C

Vapour pressure:

ca. 0.001 Pa

Key result

Test no.:

#2

Temp.:

ca. 25 °C

Vapour pressure:

ca. 0.002 Pa

Key result

Test no.:

#3

Temp.:

ca. 50 °C

Vapour pressure:

ca. 0.016 Pa

Key result

Vapour pressure:

ca. 0.016 Pa

Transition / decomposition:

ambiguous

Transition temp.:

>= 40 - <= 80 °C

Conclusions:

The substance vapour pressure was investigated in accordance with OECD Guideline 104 and EU MEthod A.4 via a glp certified laboratory using the effusion: vapour pressure balance method. The vapour pressure was determined to be 0.0013, 0.00204 and 0.0158 Pa at 20,25 and 50 °C respectively.

Executive summary:

The substance vapour pressure was investigated in accordance with OECD Guideline 104 and EU MEthod A.4 via a glp certified laboratory using the effusion: vapour pressure balance method. The measurement was then carried out once the required vacuum had been obtained (approximately 10^-4Pa) and therefrigeration box had been cooled with liquid nitrogen. The series of measurements commenced at the lowest desired measuring temperature. The orifice was opened for a certain time and the increase of weight on the balance pan was measured. Taking into account the geometry of the vapour pressure balance, physical data of the test item and the evaporation rate Δm/Δt the vapour pressure was calculated.

For further measurements, the temperature was increased in small intervals until the maximum desired temperature value was reached. The vapour pressure was determined for six temperaturers of the substance. The vapour pressure of the test item was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C The vapour pressure was determined to be 0.0013, 0.00204 and 0.0158 Pa at 20,25 and 50 °C respectively.

Description of key information

The vapour pressure of the substance is determined in accordance with OECD Guideline 104 and EU Method A.4 using the effusion method based on vapoure pressure balance. The vapour pressure was determined to be 0.0013, 0.00204 and 0.0158 Pa at 20, 25 and 50 °C respectively.

Key value for chemical safety assessment

Vapour pressure:

0.001 Pa

at the temperature of:

20 °C