Registration Dossier
Registration Dossier
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EC number: 275-532-1 | CAS number: 71487-01-9
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:
- 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Testing conducted with reference to Thermogravimetric Analysis Basic Theory & Applications Training (TA Instruments 2009) and ASTM Method E1131-08 “Compositional Analysis by Thermogravimetry”.
- GLP compliance:
- no
- Type of method:
- other: Decomposition range of the test item was measured using Thermogravimetric Analysis (TGA)
- Specific details on test material used for the study:
- The commercial product containing the "substance", Quaternary ammonium compounds, di-C12-18-alkyldimethyl, nitrites, CAS Number 71487 -01 -9, EC Number 275 -532 -1, in organic solvents, methanol and isopropanol (ca. 32%) was utlised for this study. Prior to this study being undertaken, these solvents were removed by, firstly, leaving the sample under a stream of nitrogen to remove the majority of the solvent(s) and, secondly, evaporating the remaining residual solvent(s) under vacuum at 60 degress C to constant dried weight of the test item. After solvent removal the substance was identified to be a yellow viscous liquid / wax like solid.
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- > 189.5 - < 193.6 °C
- Remarks on result:
- other: A distinct weight loss corresponding to an exotherm was detected which indicates a degradation event which was determined to be between 189.5 degrees C and 193.6 degrees C.
- Conclusions:
- A distinct weight loss corresponding to an exotherm was detected which indicates a degradation event. This was confirmed by Differential Scanning Calorimetry (DSC). This was observed to occur between 189.5 degrees C and 193.6 degrees C.
- Executive summary:
The boiling point / boiling range - decomposition temperature / decomposition range of the test item (Quaternary ammonium compounds, di-C12-18-alkyldimethyl, nitrites, CAS Number 71487 -01 -9, EC Number 275 -532 -1) was investigated in a study conducted with reference to Thermogravimetric Analysis (TGA) Basic Theory & Applications Training (TA Instruments 2009) and ASTM Method E1131-08 “Compositional Analysis by Thermogravimetry”.
This study is assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al (1997).
TGA analysis of the test item indicated two weight loss events at circa 190 degrees C and 250 degrees C. However, from this information alone it was not possible to state that these are boiling point or decomposition events. Differential Scanning Calorimetry (DSC) confirmed that the observation at ca. 190 degrees C was exothermic indicating decomposition of the test item.
The decomposition range was therefore determined to be between 189.5 degrees C and 193.6 degrees C.
Reference
Description of key information
The boiling point / boiling range - decomposition temperature / decomposition range of the test item (Quaternary ammonium compounds, di-C12-18-alkyldimethyl, nitrites, CAS Number 71487-01-9, EC Number 275-532-1) was investigated in a study conducted with reference to Thermogravimetric Analysis (TGA) Basic Theory & Applications Training (TA Instruments 2009) and ASTM Method E1131-08 “Compositional Analysis by Thermogravimetry”.
This study is assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al (1997).
TGA analysis of the test item indicated two weight loss events at circa 190 degrees C and 250 degrees C. However, from this information alone it was not possible to state that these are boiling point or decomposition events. Differential Scanning Calorimetry (DSC) confirmed that the observation at ca. 190 degrees C was exothermic indicating decomposition of the test item.
The decomposition range was therefore determined to be between 189.5 degrees C and 193.6 degrees C.
Key value for chemical safety assessment
Additional information
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