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EC number: 254-400-7 | CAS number: 39290-78-3
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 May 2010-09 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. The test substance is adequately characterised. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Remarks:
- + ThermoGravimetric Analysis (TGA)
- Key result
- Boiling pt.:
- ca. 105 °C
- Atm. press.:
- 1 024 hPa
- Remarks on result:
- other: evaporation of water
- Conclusions:
- The observed boiling was attributed to evaporation of water.
- Executive summary:
The boiling point of Aluminium chloride hydroxide sulphate (as aqueous solution) was investigated according to OECD/EC guidelines, DSC method. Two assays were performed under nitrogen. Boiling was observed at ca 105°C.
Reference
Results
Preliminary study
From 120°C upwards the weight of the sample decreased significantly. At 131°C the sample weight had decreased by 25%.
After the experiment, a white powder/pellet remained in the sample container.
Main Study
From approximately 75°C upwards an endothermic effect occurred with an extrapolated onset of 104.33°C. After the experiment, a white solid remained in the sample container.
With the second experiment similar results as with the first experiment were obtained. The extrapolated onset temperature of the effect above 75°C, was determined to be 104.49°C.
A third experiment was performed in order to investigated whether there where any other effects up to 400°C.The DSC-curve obtained,showed an endothermic peak with an extrapolated onset of 105.21°C. After the experiment, a white solid remained in the sample container.
During the fourth experiment, the endothermic peak observed during the third experiment shifted to a higher temperature. This indicates that the peak was caused by evaporation. According to this the peak observed during the third experiment was assigned to boiling of water present in the test substance.
Description of key information
Boiling point: ca 105°C (aqueous solution as manufactured), attributed to evaporation of water.
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 105 °C
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, and the result is retained as key data for purpose of CSA.
As an UVCB, it should be noted that the value of the parameter may show some variations.
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