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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:
from October 5, 2007 to November 11, 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.6 (Water Solubility)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
flask method
Key result
Water solubility:
369 g/L
Temp.:
20 °C
pH:
ca. 9.4
Details on results:
Standard uncertainty 3.0 g/L
Conclusions:
The water solubility of the test substance - Humic acids, sodium salts - is 369 g/L.
Standard uncertainty of determination was estimated to 3 g/L.

Testing was performed at the temperature of 20°C.
pH cca 9.4

Interpretation of results (migrated information): moderately soluble (100-1000 mg/L)
Executive summary:

Water solubility test was performed for the test substance. Flask method was used.

Test was performed according to the Method A.6 Water solubility, Directive 92/69/EEC, published in OJ No L 383A, December 1992.

The concentration of the substance in the aqueous solution was determined by spectrophotometric method (SFM).

Description of key information

Method A.6 Water solubility, Directive 92/69/EEC, published in OJ No L 383A, December 1992.
GLP study

Key value for chemical safety assessment

Water solubility:
369 g/L
at the temperature of:
20 °C

Additional information

Water solubility test was performed for the test substance. Flask method was used.

The concentration of the substance in the aqueous solution was determined by spectrophotometric method (SFM).

The water solubility of the test substance - Humic acids, sodium salts - is 369 g/L.

Standard uncertainty of determination was estimated to 3 g/L.

Testing was performed at the temperature of 20°C.

pH cca 9.4