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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2014-05-21 - 2014-06-12
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: visual method

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethyl dihydrogen phosphate
EC Number:
216-603-9
EC Name:
Ethyl dihydrogen phosphate
Cas Number:
1623-14-9
Molecular formula:
C2H7O4P
IUPAC Name:
Phosphoric acid,monoethyl ester
Test material form:
liquid
Specific details on test material used for the study:
Test item:Hordaphos MDE
Synonym:phosphoric acid ethyl ester, ethyl phosphate
Content:99.2 % (sum of main components)
Physical state:colourless to brownish clear viscous liquid
CAS-No.:37203-76-2
EINECS-No.:253-391-7

Results and discussion

Water solubility
Key result
Water solubility:
> 9 000 g/L
Conc. based on:
test mat.
Loading of aqueous phase:
9 g/L
Temp.:
24 °C
pH:
0.3
Remarks on result:
completely miscible

Any other information on results incl. tables

Water solubility of the test item "Visual method"-experiments A to D

Experiment

A

B

C

D (blank)

Amount of test item (g)

0.9901

4.9718

9.0006

0

Amount of distilled water (g)

8.9838

4.9755

1.0048

10.0109

Ratio

1:9

1:1

9:1

0:10

Appearance of the mixturesafter shaking

clear, colourless,completelydissolved

clear, colourless,completelydissolved

clear, colourless,completelydissolved

clear,colourless

pH at 24 °C

1.0

0.6

0.2

5.2

Appearance of the mixturesafter storing for 24 h at20 °C± 0.5 °C

clear, colourless,completelydissolved

clear, colourless,completelydissolved

clear, colourless,completelydissolved

clear,colourless

pH (at temperature)

1.0 (24 °C)

0.7 (24 °C)

0.3 (24 °C)

5.3 (22 °C)

Applicant's summary and conclusion

Conclusions:
The test item was miscible with water at room temperature (T = 24 °C) and at T = 20.0 °C ± 0.5 °C in any ratio.
Executive summary:

The water solubility of test items with an expected high solubility is normally determined according to the "flask method" described in the OECD test guideline 105. To apply this method,the preparation of asaturated solution of the test item in water is required. Since this wasnot applicable for the present test item,as according to the preliminary test the test item was completely miscible with water,a special "visual method" was applied to investigate the complete miscibility:

The test item was miscible with water at room temperature (T= 24°C) and at T =20.0 °C ± 0.5 °C in any ratio.