Registration Dossier
Registration Dossier
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EC number: 215-477-2 | CAS number: 1327-41-9
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 May 2010-15 July 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- This study has been performed according to OECD and EC guidelines and according to GLP principles. Test substance is adequately characterised. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Remarks:
- Differential Scanning Calorimetry + ThermoGravimetric Analysis
- Melting / freezing pt.:
- < -90 °C
- Atm. press.:
- 1 010 hPa
- Remarks on result:
- other: Freezing of the test substance was not observed (under nitrogen).
- Conclusions:
- No further testing required.
- Executive summary:
The freezing point of aluminium chloride basic (as aqueous solution) was investigated according to OECD/EC guidelines, DSC method. Two assays were performed under nitrogen. No freezing (i.e. transition to solid form) was observed down to -90°C.
Reference
Main Study
During initial experiments, aluminium sample pans were used. During these experiments exothermic effects were observed which are assigned to reaction of the test substance with the aluminium sample pan. Therefore golden pans were used in order to determine the melting point of the test substance.
During the first experiment, during cooling no effects were observed which were due to crystallization.
With the second experiment, essentially the same results as during the first experiment were obtained.
Description of key information
Freezing point < -90 °C (aqueous solution as manufactured).
No further testing is required.
Key value for chemical safety assessment
Additional information
A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. Therefore, it is considered as a key study. As no crystallisation was observed down to -90°C, the result is expressed as a limit value, and cannot be retained as key data for purpose of CSA.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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