Ethylene bis[3,3-bis(3-tert-butyl-4-hydroxyphenyl)butyrate]

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study was conducted according to an appropriate OECD guideline.

Qualifier:

according to guideline

Guideline:

other: OECD Guideline 105 (Water Solubility) (1995)

GLP compliance:

not specified

Type of method:

other: flask method and HPLC

Water solubility:

0.5 mg/L

Temp.:

23 °C

pH:

>= 6.1 - <= 6.4

Remarks on result:

other: mean of 3 measurements

Preliminary test:

ml of water for 0.1 g soluble	0.1	0.5	1	2	10	100	150
approx. solubility in g/L	>1000	1000 to 200	200 to 100	100 to 50	50 to 10	10 to 1	<1
visual evaluation	not soluble	not soluble	not soluble	not soluble	not soluble	not soluble	not soluble

Main Study:

Flask No.	Equilibration time at 20°C [h]	pH of aqueous solution	Active content [mg/l]
1	24	6.3	0.3
2	48	6.3	0.8
3	72	6.1	0.5
mean	-	-	0.5

Remark: Pulverisation of the test substance was not possible due to the sticky consistency during grinding. Therefore the test substance was applied as is.

Conclusions:

Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
Water solubility (20°C): 0.5 mg/L at 20°C

Executive summary:

The water solubility of the test substance Hostanox O 3 was determined according to the OECD 105. A water solubility at 20°C of 0,5 mg/l was obtained.

Description of key information

ethylene bis[3,3-bis(3-tert-butyl-4-hydroxyphenyl)butyrate] is slightly soluble in water at a temperature of 20°C

Key value for chemical safety assessment

Water solubility:

0.5 mg/L

at the temperature of:

20 °C

Additional information

A water solubility value of 0.5 mg/L at 20°C were determined in a reliable study conducted according to OECD 105.