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Water solubility

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28 February 2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
GLP compliance:
no
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 OF TEST MATERIAL
- 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
Temp.:
20 °C
pH:
>= 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
Conclusions:
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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