Registration Dossier
Registration Dossier
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EC number: 279-013-0 | CAS number: 78948-87-5
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Fraunhofer IME
- Type of method:
- flask method
- Key result
- Water solubility:
- 223 g/L
- Conc. based on:
- other: Magnesium-monoperphthalate
- Temp.:
- 20 °C
- Remarks on result:
- other: The value is a theoretical concentration because of degradation of the test substance
- Key result
- Water solubility:
- 291 g/L
- Conc. based on:
- other: Magnesium-monoperphthalate hexahydrate
- Temp.:
- 20 °C
- Remarks on result:
- other: The value is a theoretical concentration because of degradation of the test substance
- Conclusions:
- The water solubility of MMPP was determined according to OECD 105. Due to the rapid degradation of the test substance the analytical determination was based on the degradation product phthalic acid. The theoretical water solubility of MMPP was determined to 223 g/L at 20°C, calculated from the measured phthalic acid concentrations.
Reference
It was not possible to determine the water solubility of MMPP because the test substance is not stable in aqueous solution. In short times no MMPP was detectable and complete degradation to phthalic acid occurred. Therefore, the analytical determination was based on phthalic acid.
Description of key information
The water solubility of MMPP was determined according to OECD 105. Due to the rapid degradation of the test substance the analytical determination was based on the degradation product phthalic acid. The theoretical water solubility of MMPP was determined to 223 g/L at 20°C, calculated from the measured phthalic acid concentrations.
Key value for chemical safety assessment
- Water solubility:
- 291 g/L
- at the temperature of:
- 20 °C
Additional information
The value should be used with care, as the substance is not stable in aqueous solution.
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