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Physical & Chemical properties

Water solubility

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Administrative data

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
22 Nov - 01 Dec 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
Water solubility:
< 0.05 mg/L
Temp.:
20
pH:
6.4 - 6.8
Remarks on result:
other: pH of millipore water: 7.3

 

Sample

Sampling time [mL]

pH

Concentration [mg/L]

Run 1: Flow rate 25 mL/h

1

25

6.4

n.d. (< 0.05)

2

50

6.4

n.d. (< 0.05)

3

75

6.5

n.d. (< 0.05)

4

100

6.6

n.d. (< 0.05)

5

125

6.7

n.d. (< 0.05)

6

150

6.7

n.d. (< 0.05)

7

175

6.6

n.d. (< 0.05)

8

200

6.5

n.d. (< 0.05)

 

 

Run 2: Flow rate 12.5 mL/h

1

25

6.4

n.d. (< 0.05)

2

50

6.5

n.d. (< 0.05)

3

75

6.8

n.d. (< 0.05)

4

100

6.6

n.d. (< 0.05)

5

125

6.7

n.d. (< 0.05)

6

150

6.6

n.d. (< 0.05)

7

175

6.6

n.d. (< 0.05)

8

200

6.5

n.d. (< 0.05)

 

 

Mean of all concentration values:

n.d. (< 0.05)

The calibration curve fits over the whole range from 0.06 to 5.7 mg/L with r²=1.000. Due to this wide working range, quadratic fit was used.

In course of the recovery experiment, a recovery rate of 109.1% was determined.

Description of key information

<0.05 mg/L at 20 °C and pH = 6.4 - 6.8

Key value for chemical safety assessment

Additional information

The water solubility of the substance propane-1,2,3-triyl 3,5,5-trimethylhexanoate (CAS 56554-53-1) was determined with column elution method according to EU Method A.6.