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Water solubility

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water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28 February 2018
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
according to guideline
OECD Guideline 105 (Water Solubility)
GLP compliance:
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
flask method
Specific details on test material used for the study:
- Source and lot/batch No.of test material: MI16A047
Key result
Water solubility:
187 g/L
Conc. based on:
test mat.
Incubation duration:
4 h
20 °C
>= 6 - <= 7
Details on results:
Method: Near the solubility limit several solutions with various concentrations are prepared by the addition of the substance to 25 g water. Each solution is stirred for at least 4 hours and then the viscosity is visually estimated. This was used as a measure for the solubility limit of the substance. The solubility is calculated from the two weights where the transition from viscous to pasty can be observed.

 Weight of sample [g]

 Water [g]  concentration [g/kg]  state of the solution
 4.0  25  138  liquid
 4.5  25  153  liquid
 5.0  25  167  viscous
 5.5  25  180  viscous
 6.0  25  194  pasty
 6.5  25  206  pasty
The substance Benzenesulfonic acid, 4-C15-16-sec-alkyl derivs. MIPA salt is soluble at 20°C.
Executive summary:

The water solubility of Benzenesulfonic acid, 4 -C15 -16 -sec-alkyl derivs. MIPA salt was measured to be 187 g/l at 20°C.

Description of key information

Solubility was determined by Flask method.

Key value for chemical safety assessment

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

Additional information

Benzenesulfonic acid, 4-C15-16-sec-alkyl derivs. MIPA salt shows a solubility in water of 187 g/l at 20°C

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