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Physical & Chemical properties

Water solubility

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Version / remarks:
Determined of solubility in ultra-pure water by visual inspection.
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.6 (Water Solubility)
Version / remarks:
Determined of solubility in ultra-pure water by visual inspection.
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
flask method
Remarks:
Determined of solubility in ultra-pure water by visual inspection.
Specific details on test material used for the study:
Name: Phosphoric acid, mixed decyl and octyl esters, compds. with diethanolamine
CAS No.: 68425-57-0
Physical state: white solid at 20 °C (turbid, non-pourable paste)
Batch No.: PU61810016
Re-certification date of batch: 16 June 2018
Purity: 100 % (UVCB)
Moisture, % (KF) 1,2
pH, 10% in dW 7,2
Stability: stable under test conditions
Storage condition of test material: Room temperature, protected from light
Key result
Water solubility:
>= 234 - <= 293 mg/L
Conc. based on:
test mat.
Loading of aqueous phase:
234 mg/L
Incubation duration:
20 min
Temp.:
20 °C
pH:
7.2

Re

sults

In an OECD 105 study increasing volumes of water are added to the test item and the water solubility of the test item is determined by visual inspection. Water solubility of the test item was found to be between 234 mg/L and 293 mg/L.

Results of the tests were given in the following table.

Table: Test Results

Test Item

[mg]

Total volume of ultra-pure water

[mL]

Time of shaking

[min]

 Remarks
 11.7  20  10  Not dissolved completly, turbid, foam formation
 11.7 30   10  Not dissolved completly, turbid, foam formation
 11.7  40  1200  Not dissolved completly, turbid, foam formation
 11.7  50  20  Test item is dissolved in water under foam formation. No undissolved parts were observed.
Conclusions:
In an OECD 105 study increasing volumes of water are added to the test item and the water solubility of the test item is determined by visual inspection. Water solubility of the test item was found to be between 234 mg/L and 293 mg/L.
Executive summary:

In an OECD 105 study increasing volumes of water are added to the test item and the water solubility of the test item is determined by visual inspection. The solubility of the test item was determined in ultra-pure water by visual inspection. Water solubility of the test item was found to be between 234 mg/L and 293 mg/L.

Description of key information

In an OECD 105 study increasing volumes of water are added to the test item and the water solubility of the test item is determined by visual inspection. Water solubility of the test item was found to be between 234 mg/L and 293 mg/L.

Key value for chemical safety assessment

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

Additional information