Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

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 105 (Water Solubility)

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.6 (Water Solubility)

Deviations:

no

GLP compliance:

no

Type of method:

other: stepwise procedure - visually check for any undissolved parts of the sample

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 yellow 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

Water solubility:

>= 1 800 g/L

Conc. based on:

test mat. (total fraction)

Incubation duration:

24 h

Temp.:

20 °C

pH:

7.7

Study results

With 3.5912 g of test item being mixed into 2 g of water, a clear solution with a total weight of 5.5912 g has been formed. This is equivalent to 64.2% (w/w) of test item in solution or a concentration of 1.8 kg/L.

The pH value of a 10% solution of the test item in water was 7.74, the tests were performed at 20 °C.

Table: Amounts of Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate added to water and results

Experiment	Water [g]	Weighed sample [g]	Result
A	2.0	0.2240	clear liquid
B	2.0	1.0242	clear liquid
C	2.0	3.5912	clear liquid

Conclusions:

The water solubility of Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate was determined according to OECD Guideline 105 – Flask method. The water solubility of Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate is 1.8 kg/L or rather unlimited. The pH value of a 10% solution of the test item in water was 7.74, the tests were performed at 20 °C.

Executive summary:

The water solubility of Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate was determined according to OECD Guideline 105 – Flask method. The water solubility of Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate is 1.8 kg/L or rather unlimited. The pH value of a 10% solution of the test item in water was 7.74, the tests were performed at 20 °C.

Description of key information

The water solubility of Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate was determined according to OECD Guideline 105 – Flask method. The water solubility of Ethyltris(2-hydroxyethyl)ammonium ethyl sulphate is 1.8 kg/L or rather unlimited. The pH value of a 10% solution of the test item in water was 7.74, the tests were performed at 20 °C.

Key value for chemical safety assessment

Water solubility:

1 800 g/L

at the temperature of:

20 °C