Registration Dossier
Registration Dossier
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EC number: 238-200-7 | CAS number: 14285-59-7
Solubility in organic solvents / fat solubility
Administrative data
- Endpoint:
- solubility in organic solvents / fat solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Remarks:
- no guideline followed
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- A solid sample of the cobalt complex (1.3 mg) is added to 5.0 mL of n-octanol (99%) at 20°C. The sample is agitated by shaking. The concentration of the substance in the octanol solution is determined by UV-vis spectroscopic method.
- GLP compliance:
- no
Test material
- Reference substance name:
- Tetrahydrogen [29H,31H-phthalocyanine-2,9,16,23-tetrasulphonato(6-)-N29,N30,N31,N32]cobaltate(4-)
- EC Number:
- 238-200-7
- EC Name:
- Tetrahydrogen [29H,31H-phthalocyanine-2,9,16,23-tetrasulphonato(6-)-N29,N30,N31,N32]cobaltate(4-)
- Cas Number:
- 14285-59-7
- Molecular formula:
- C32H16CoN8O12S4
- IUPAC Name:
- tetrahydrogen [29H,31H-phthalocyanine-2,9,16,23-tetrasulphonato(6-)-N29,N30,N31,N32]cobaltate(4-)
Constituent 1
Results and discussion
Solubility in organic solvents / fat solubility
- Key result
- Medium:
- n-octanol
- Solubility:
- < 7 mg/L
- Temp.:
- 20 °C
- Test substance stable:
- yes
Any other information on results incl. tables
The sample was agitated by shaking in an attempt to effect dissolution; however, no dissolution was observed. The sample dissolution experiment was continued for three days with no observed change.
It was not feasible to conduct the octanol dissolution experiment to test for lower levels of solubility due to experimental constraints.
Additionally, the cobalt analyte in n-octanol was not detectable by UV-vis spectroscopic methods. The UV-vis spectroscopic method could detect up to 0.007 g/L in aqueous solution, and it is assumed the extinction coefficient would be similar to n-octanol and water for the analyte. Therefore, this study can only conclude that the solubility of the cobalt complex in n-octanol is less than 0.007 g/L.
Applicant's summary and conclusion
- Conclusions:
- The solubility of the test item in n-octanol is less than 7 mg/L (LOD of the UV-vis spectroscopic method) at 20°C. In addition, visually no dissolution of this coloured solid is observed.
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