Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Deviations:

no

GLP compliance:

no

Type of method:

dynamic method

Specific details on test material used for the study:

Name: Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate
Product Description: Triethanolamine DES Quat
CAS No.: 31774-90-0
Physical state: colourless to yellowi viscous liquid at 20 °C
Batch No.: PFS-755-175
Re-certification date of batch: 21 April 2018
Purity: 100 % (UVCB, water content 0.33 % (w/w))
pH, 5% in water 7.85
Acid Value , mg KOH/g 38.45
Moisture, % 0.33
Total Amine, mg/g 33.10
Viscosity,cps, #4@60,25C 1580
Stability: stable under test conditions
Storage condition of test material: Room temperature, protected from light

Key result

Test no.:

#1

Temp.:

20 °C

Vapour pressure:

<= 9 Pa

Remarks on result:

other: Vapour pressure calculated (Determination of the vapour pressure curve of solid and liquid substances by means of DSC).

Key result

Test no.:

#1

Temp.:

50 °C

Vapour pressure:

<= 83 Pa

Remarks on result:

other: Vapour pressure calculated (Determination of the vapour pressure curve of solid and liquid substances by means of DSC).

Results

The vapour pressure of the test item was determined in accordance with the test method OECD Guideline 104 “OECD Guideline For The Testing Of Chemicals, adopted by the Council on 23rd March 2006, Vapour Pressure” (similar to the test method A.4. "Vapour Pressure according to the Dynamic Method" as described in the Official Journal of the European Communities L383A). The test item Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate has a vapour pressure of ≤ 8.9 x 10-5 atm (≤ 9.0 x 10^0 Pa; ≤ 9.0 x 10^-2 mbar) at 20 °C and of ≤ 8.2 x 10^-4 atm (≤ 8.3 x 10^1 Pa; ≤ 8.3 x 10^-1 mbar) at 50 °C (the calculation is based on the lowest possible boiling temperature) according to the definition in the OECD Guideline 104 (Grain-Watson estimation).

Conclusions:

The test item Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate has a vapour pressure of ≤ 8.9 x 10^-5 atm (≤ 9.0 x 10^0 Pa; ≤ 9.0 x 10^-2 mbar) at 20 °C and of ≤ 8.2 x 10^-4 atm (≤ 8.3 x 10^1 Pa; ≤ 8.3 x 10^-1 mbar) at 50 °C (the calculation is based on the lowest possible boiling temperature) according to the definition in the OECD Guideline 104 (Grain-Watson estimation).

Executive summary:

The vapour pressure of the test item was determined in accordance with the test method OECD Guideline 104 “OECD Guideline For The Testing Of Chemicals, adopted by the Council on 23rd March 2006, Vapour Pressure” (similar to the test method A.4. "Vapour Pressure according to the Dynamic Method" as described in the Official Journal of the European Communities L383A). The test item Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate has a vapour pressure of ≤ 8.9 x 10 -5 atm (≤ 9.0 x 10^0 Pa; ≤ 9.0 x 10^-2 mbar) at 20 °C and of ≤ 8.2 x 10^-4 atm (≤ 8.3 x 10^1 Pa; ≤ 8.3 x 10^-1 mbar) at 50 °C (the calculation is based on the lowest possible boiling temperature) according to the definition in the OECD Guideline 104 (Grain-Watson estimation).

Description of key information

The test item has a vapour pressure of ≤ 8.9 x 10^-5 atm (≤ 9.0 x 10^0 Pa; ≤ 9.0 x 10^-2 mbar) at 20 °C and of ≤ 8.2 x 10^-4 atm (≤ 8.3 x 10^1 Pa; ≤ 8.3 x 10^-1 mbar) at 50 °C (the calculation is based on the lowest possible boiling temperature) according to the definition in the OECD Guideline 104 (Grain-Watson estimation).

Key value for chemical safety assessment

Vapour pressure:

9 Pa

at the temperature of:

20 °C