Registration Dossier
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EC number: - | CAS number: -
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- GLP compliance:
- yes
- Type of method:
- flask method
Test material
- Reference substance name:
- Reaction mass of Trihydrogen [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cobaltate(3-) and [29H,31H-phthalocyaninato-N29,N30,N31,N32]cobalt and dihydrogen [29H,31H-phthalocyaninedisulphonato(4-)-N29,N30,N31,N32]cobaltate(2-) and hydrogen [29H,31H-phthalocyaninesulphonato(3-)-N29,N30,N31,N32]cobaltate(1-)
- Molecular formula:
- C32H16N8Co(SO3)n with n=0 to 3
- IUPAC Name:
- Reaction mass of Trihydrogen [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cobaltate(3-) and [29H,31H-phthalocyaninato-N29,N30,N31,N32]cobalt and dihydrogen [29H,31H-phthalocyaninedisulphonato(4-)-N29,N30,N31,N32]cobaltate(2-) and hydrogen [29H,31H-phthalocyaninesulphonato(3-)-N29,N30,N31,N32]cobaltate(1-)
Constituent 1
Results and discussion
Water solubility
- Key result
- Water solubility:
- ca. 27.5 mg/L
- Temp.:
- 30 °C
- pH:
- >= 6.25 - <= 6.75
- Remarks on result:
- other: at a loading rate of 100 mg/L. solubility increases with loading rate
- Details on results:
- further assays at higher loading rates showed a sub-proportional increase in water solubility at 30°C, pH ranging 6.02-6.31:
241 mg/L at 984 mg/L loading rate
1.6 g/L at 10 g/L loading rate
3.9 g/L at 98 g/L loading rate
Applicant's summary and conclusion
- Conclusions:
- The test item is a reaction mass with four constituents. Each one has a different solubility and due to the complex interaction of the constituents, the determination of a single value for the water solubility of this test item is not feasible. Indeed, the solubility of the test item depends on the water/test item ratios and only quasi-saturated solutions can be prepared. An estimation of the water solubility was determined from the concentrations measured from samples with various nominal concentrations. The water solubility for the test item is approximately 27.5 mg/L based on a nominal 100 mg/L mixture.
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