(ethyl acetoacetato-O1',O3)(pentane-2,4-dionato-O,O')[propane-1,3-diolato(2-)-O,O']titanium

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

10 Nov 2017 (experimental start date) - 11 Nov 2017 (experimental completion date)

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.6 (Water Solubility)

Version / remarks:

30 May 2008

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Version / remarks:

27 July 1995

GLP compliance:

yes (incl. QA statement)

Type of method:

flask method

Water solubility:

1.01 g/L

Conc. based on:

other: titanium concentration

Loading of aqueous phase:

0.127 g/L

Temp.:

20 °C

pH:

4.1

Remarks on result:

completely miscible

Remarks:

time dependent solubility characteristics were identified during the evaluations

Details on results:

A time dependent solubility trend was obtained on analysis of the main test. This indicated likely hydrolysis or an alternative transformation mechanism was influencing the total dissolved titanium concentration of the sample solutions. Data from sample solutions generated with a reduced exposure period to water resulted in an increased analyzed concentration and the maximum concentration achieved was therefore taken as the definitive water solubility result. The potential reactivity with water was also further indicated by visual observations recorded on addition of the test item to aqueous media, with the appearance of the visible undissolved material rapidly changing from a clear amber colored liquid to that of a white precipitate/dispersion.

Main Test
Sample No.	Time shaken at 30°C (hours)	Time equilibrated at 20°C (hours)	Solution pH	Mean analyzed titanium concentration (g/L)	Equivalent test item concentration based on the analyzed titanium concentration (g/L)
1	24	24	4.1	0.108	0.857
2	48	24	4.1	6.35 x 10^-2	0.504
3	72	24	4.1	6.48 x 10^-2	0.515
Additional Short-Term Test
4	1	1	4.2	6.00 x 10^-2	0.476
5	2	1	4.2	8.46 x 10^-2	0.672
6	3	1	4.1	0.127	1.01

Conclusions:

The water solubility of the test item was determined to be equivalent to 1.01 g/L at 20.0 ± 0.5 °C, derived from the maximum observed titanium concentration of 0.127 g/L. However time dependent solubility characteristics were identified during the evaluations.

Executive summary:

The water solubility of the test item was determined to be equivalent to 1.01 g/L at 20.0 ± 0.5 °C, derived from the maximum observed titanium concentration of 0.127 g/L. However time dependent solubility characteristics were identified during the evaluations.

Description of key information

The water solubility of the test item was determined to be equivalent to 1.01 g/L at 20.0 ± 0.5 °C, derived from the maximum observed titanium concentration of 0.127 g/L. However time dependent solubility characteristics were identified during the evaluations.

Key value for chemical safety assessment

Water solubility:

1.01 g/L

at the temperature of:

20 °C