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Physical & Chemical properties

Water solubility

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2015-07-03 to 2015-07-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Qualifier:
according to guideline
Guideline:
EU Method A.6 (Water Solubility)
GLP compliance:
yes (incl. QA statement)
Type of method:
flask method
Key result
Water solubility:
508 g/L
Conc. based on:
test mat. (dissolved fraction)
Loading of aqueous phase:
5 g/L
Incubation duration:
>= 24 - <= 72 h
Temp.:
30 °C
pH:
ca. 4.9
Details on results:
Preliminary test: The water solubility was determined to be in the range of 500-1000 mg/L

Table: Water Solubility Results at 20 °C

Preincubation time [h]

Replicate No.

Test item

Concentration

Mean value

24

1

467

500

2

503

48

1

528

523

2

518

72

1

493

502

2

512

Mean (24 - 72 h)

 

508

Deviation [%] (24 - 72 h)

4.60

Temperature at incubation phase, 30°C and thermostatisation phase, 20 °C (measured hourly 

Intended temperature

Measured temperature [°C]

 

Min

Max

Mean value± SD

30±0.5

29.91

30.08

30.00±0.02

20±0.5

20.04

20.17

20.08±0.02

PH value

Test temperature [°C]

Pre-incubation time [h]

replicate

Measured pH

Mean value

 

 

 

20

24

1

4.770

 

 

 

4.9

2

4.852

48

1

5.056

2

4.983

72

1

4.967

2

4.970

control

6.437

-

 No tyndall effect was detected during the incubation time .

Validity criteria were fullfilled: The concentration measured did not differ more than 15%, tempreatures were kept constant within ± 0.5°C

Conclusions:
The water solubility of the test item was determined to be 508 mg/L (pH 4.9) at 20 ± 0.5 °C.
Executive summary:

The test item has a water solubility of 508 mg/L (pH 4.9) at 20 ± 0.5 °C as determined by flask method according to Regulation EC No. 440/2008 Method A.6., OECD Test Guideline 105 (1995).

Description of key information

The water solubility is 508 mg/L (pH 4.9) at 20 ± 0.5 °C.

Key value for chemical safety assessment

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

Additional information

The test item has a water solubility of 508 mg/L (pH 4.9) at 20 ± 0.5 °C as determined by flask method according to Regulation EC No. 440/2008 Method A.6., OECD Test Guideline 105 (1995).