Alcohols, C16-18 and C18-unsatd., ethoxylated, sulfates, sodium salts

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

22 Jun - 3 Jul 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Principles of method if other than guideline:

The test item represents a complex mixture of different components. The water solubility was determined by integrating the entire peak group of the test item in the obtained chromatograms.

GLP compliance:

yes

Type of method:

flask method

Water solubility:

112.8 g/L

Temp.:

20 °C

pH:

>= 5.8 - <= 5.9

Study results:

On the basis of the obtained calibration curve, the concentrations of the different test solutions were were calculated. The results (duplicate determination) are summarized in the table:

Incubation time [h]	Result 1 [mg/25 mL]	Result 2 [mg/25 mL]	Average [mg/25 mL]	[mg] supernatant diluted to 25 mL
24	40.852	40.831	40.84	363.15
48	40.842	40.382	40.61	359.05
72	40.771	40.594	40.68	360.32

With these results, the following value of the water solubility of the test item could be calculated:

Incubation time [h]	Water solubility [g/L]	Average [g/L]
24	112.5	112.8
48	113.1
72	112.9

Description of key information

112.8 g/L at 20 °C, pH = 5.8-5.9 (OECD 105)

Additional information

The water solubility of the substance was determined using flask method.