Registration Dossier
Registration Dossier
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EC number: 236-655-6 | CAS number: 13455-36-2
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from November 3, 2021 to February 4, 2022
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 022
- Report date:
- 2022
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- Modified flask method
- GLP compliance:
- no
- Type of method:
- flask method
Test material
- Reference substance name:
- Tricobalt bis(orthophosphate)
- EC Number:
- 236-655-6
- EC Name:
- Tricobalt bis(orthophosphate)
- Cas Number:
- 13455-36-2
- Molecular formula:
- Co3(PO4)2
- IUPAC Name:
- tricobalt bis(orthophosphate)
- Reference substance name:
- Dicobalt diphosphate
- EC Number:
- 238-689-7
- EC Name:
- Dicobalt diphosphate
- Cas Number:
- 14640-56-3
- Molecular formula:
- Co2P2O7
- IUPAC Name:
- dicobalt diphosphate
- Reference substance name:
- cobalt phosphate octahydrate
- Cas Number:
- 10294-50-5
- Molecular formula:
- Co3(PO4)2.8H2O
- IUPAC Name:
- cobalt phosphate octahydrate
- Test material form:
- solid: particulate/powder
Constituent 1
impurity 1
impurity 2
Results and discussion
Water solubility
- Key result
- Water solubility:
- ca. 19.3 mg/L
- Conc. based on:
- test mat.
- Loading of aqueous phase:
- 25 mg/L
- Incubation duration:
- ca. 72 h
- Temp.:
- 23 °C
- pH:
- ca. 6.6
- Details on results:
- The test results suggested Tricobalt bis(orthophosphate) (formulaCo3(PO4)2) solubility (at room temperature) reach a plateau at 72hrs.
Any other information on results incl. tables
Tricobalt bis(orthophosphate) - Solubility Study Results
| Extraction time (hours) | Soluble Co3(PO4)2 (mg/L) | pH |
| 48 | 18.7 | 6.6 |
| 72 | 19.3 | 6.6 |
| 96 | 17.2 | 6.5 |
| 120 | 13.6 | 6.5 |
| 144 | 12.5 | 6.5 |
| 168 | 11.1 | 6.5 |
| 192 | 10.1 | N/A |
Applicant's summary and conclusion
- Conclusions:
- Under the conditions of the study, the water solubility of the test item was considered to be 19.3 mg substance/L at 23°C and pH = 6.6.
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