Registration Dossier
Registration Dossier
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EC number: 222-848-2 | CAS number: 3632-91-5
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:
- From 10 to 23 january 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- not specified
- 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: 1500000655
- Expiration date of the lot/batch: 13.03.2018
- Manufacturing date: 14.03.2015 - Key result
- Water solubility:
- 9.6 g/L
- Temp.:
- 20 °C
- pH:
- 7
- Remarks on result:
- other: Uncertainty: ± 2 %. - The result is the average of 3 determinations.
- Conclusions:
- The water solubility of the test item is determinated according to OECD 105 guideline using flask method.
The water solubility of the test item is determinated to be 9.6 g/L at 20°C.
Reference
Main test comments: The test item matrix presents a particular behaviour. The solubility range obtained during the preliminary test (around 200 g/L) is not reached during the main test.
Observations :The salt is completely dissolved at the beginning of the main test, starts to crystallise after several hours and ends up forming a block of crystal. The magnesium determination is therefore performed on the supernatant liquid phase.
Nevertheless, it has been supposed that when crystallisation begins, supersaturation is consumed and finally, the concentration in the liquid phase reaches equilibrium at the solubility curve. Thus, thee solubility value is representative of the solubility of the test item.
Description of key information
The water solubility of the test item is determinated according to OECD 105 guideline using flask method.
The water solubility of the test item is determinated to be 9.6 g/L at 20°C.
Key value for chemical safety assessment
- Water solubility:
- 9.6 g/L
- at the temperature of:
- 20 °C
Additional information
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