1,2,4-Benzenetricarboxylic acid, tri-C9-11-alkyl esters

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

20-30 Oct 2011

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.6 (Water Solubility)

GLP compliance:

no

Type of method:

column elution method

Remarks:

EU test method L142 A/57-66

Water solubility:

< 0.05 mg/L

Temp.:

20 °C

pH:

>= 5.7 - <= 7.7

Remarks on result:

other: pH value Milipore water: 6.7

Details on results:

See table below.

Quantitative determination of the analyte:

 

Flow rate, mL/h	Fraction No.	Water solubility, mg/L	pH
25.0	1(1-2)	< 0.05	7.6
	2(3-4)	< 0.05	7.1
	3(5-6)	< 0.05	7.7
	4(7-8)	< 0.05	6.5
	5(9-10)	< 0.05	6.6
	6(11-12)	< 0.05	6.2
	7(13-14)	< 0.05	6.1
	8(15-16)	< 0.05	6.6
12.5	1(1-2)	< 0.05	6.4
	2(3-4)	< 0.05	6.4
	3(5-6)	< 0.05	6.5
	4(7-8)	< 0.05	6.5
	5(9-10)	< 0.05	6.5
	6(11-12)	< 0.05	5.8
	7(13-14)	< 0.05	5.7
	8(15-16)	< 0.05	5.8

The calibration curve fits over the calibration range from 0.05 to 2.0 mg/L with r² = 0.995.

In the course of the recovery experiment, a recovery rate of 83 % was determined.

Conclusions:

Interpretation of results (migrated information): insoluble (< 0.1 mg/L)

Description of key information

Insoluble. Water solubility < 0.05 mg/L at 20 °C (pH in the range from 5.7 to 7.7)

Key value for chemical safety assessment

Water solubility:

0.05 mg/L

at the temperature of:

20 °C

Additional information

There was an attempt performed, to determine the water solubility of the substance 1,2,4 -benzenetricarboxylic acid, tri-C9 -11 -alkyl esters (CAS 94279 -36 -4) according to the EC Guideline A.6. The water solubility measured was below the detection limit of 0.05 mg/L. Thus, the substance is insoluble in water.