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Water solubility

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010-02-23 to 2010-03-24
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.6 (Water Solubility)
Version / remarks:
2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
flask method
Key result
Water solubility:
14.2 mg/L
Temp.:
20 °C
pH:
6.6
Details on results:
The tert-Butylperoxy-3,5,5-trimethylhexanoat concentrations were calculated with the help of the calibration equations.
The repeatability of the determination was <15% and thus within the range required by the guidelines.

Results of the determination of water solubility of TBPIN:

Sampling time

Measured concentration of TBPIN (mg/L )

Measured pH

Test vessels

Mean with 

the 95% confidence intervals

After 24h

14.7

15.0 ± 0.71

6.58

15.1

6.53

15.2

6.49

After 48h

12.5

14.4 ± 4.21

6.78

14.9

6.72

15.8

6.75

After 72h

12.3

13.1 ± 2.05

6.52

13.0

6.55

14.0

6.56

Solubility of the test item (mg/L)

14.2 ± 2.40

-

RSD%

7

-

Conclusions:
In conclusion the water solubility of tert-Butylperoxy-3,5,5-trimethylhexanoat was determined to be 14.2 ± 2.40 mg/L (95% confidence interval) at 20 °C ± 1 °C using the shake-flask method for the performance of the main test.
Executive summary:

The solubility of tert-Butylperoxy-3,5,5-trimethylhexanoat is in water at 20 ± 1 °C was determined using the shake-flash method. The water solubility of tert-butyl 3,5,5-trimethylperoxyhexanoate was determined to be 14.2 ± 2.40 mg/L (95% confidence interval) at 20 ° C ± 1 °C using the shake-flask method for the performance of the main test.

Description of key information

Following EU-method A.6, the water solubility of tert-Butylperoxy-3,5,5-trimethylhexanoat was determined to be 14.2 ± 2.40 mg/L (95% confidence interval) at 20 °C ± 1 °C.

Key value for chemical safety assessment

Water solubility:
14.2 mg/L
at the temperature of:
20 °C

Additional information