Registration Dossier
Registration Dossier
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EC number: 291-826-2 | CAS number: 90480-88-9
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:
- 14 Aug 2019 to 18 Sep 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- EC Guideline A.2. Boiling Temperature. March 04, 2016.
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- OECD Guideline 103. Boiling Point. July 27, 1995.
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Version / remarks:
- EPA Product Properties Test Guideline OPPTS 830.7220: Boiling Point/Boiling Range. August 1996.
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- No further details specified in the study report.
- Key result
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- 100 °C
- Remarks on result:
- not determinable
- Remarks:
- Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started.
- Conclusions:
- The boiling temperature of ISO-MIX was determined by DSC.
Reaction and/or decomposition of the test item was observed during DSC experiments starting at 100°C (373K). Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature. - Executive summary:
The objective of the study was to determine the following physico-chemical properties for ISO-MIX:
Appearance
Melting and boiling temperature
Density
Vapour pressure
Flash-point
Auto-ignition temperature
The design of this study is based on the following guidelines:
Boiling Temperature
EC Guideline A.2. Boiling Temperature. March 04, 2016.
OECD Guideline 103. Boiling Point. July 27, 1995.
EPA Product Properties Test Guideline OPPTS 830.7220: Boiling Point/Boiling Range. August 1996.
The boiling temperature of the test item was determined using differential scanning calorimetry (DSC). This technique records the difference in heat flow of two crucibles, one filled with test item and the other left empty or containing an inert reference substance, while these crucibles are subjected to a controlled temperature programme. A transition of the test item, such as boiling, is indicated by a deviation from the base line in the heat flow record. Because boiling is a process in which heat is consumed, the deviation from the base line is in the endothermic direction for this process.
The boiling temperature (if any) of the test item is evaluated from the DSC curve as the extrapolated onset temperature of the endothermic boiling effect.
The boiling temperature of ISO-MIX was determined by DSC.
Reaction and/or decomposition of the test item was observed during DSC experiments starting at 100°C (373K). Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature.
Reference
Preliminary Test
Starting at 150°C, the weight of the sample decreased significantly. At 206°C, the sample weight had decreased by 25%.
After the experiment, a colourless residue with brown/black particles remained in the sample container (original colour: colourless to yellow). The change of the colour indicated reaction and/or decomposition of the test item.
Main Study
An endothermic effect directly followed by an exothermic effect were observed starting at 100°C.
The endothermic and exothermic effect were due to reaction and/or decomposition of the test item.
After the experiment, a yellowish residue with dark spots remained in the sample container (original colour: colourless to yellow). The change of the colour indicated reaction and/or decomposition of the test item.
Description of key information
The test item has no boiling temperature.
Key value for chemical safety assessment
Additional information
The boiling temperature of ISO-MIX was determined by DSC.
Reaction and/or decomposition of the test item was observed during DSC experiments starting at 100°C (373K). Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature.
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