Registration Dossier
Registration Dossier
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EC number: 277-143-2 | CAS number: 72968-50-4 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Citrus aurantium, Rutaceae.
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study according to methodology comparable to international guideline (OECD guideline 103, distillation method).
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The boiling point of an essential oil is not a sharply defined characteristic because it is a mixture of substances in variable concentrations. Therefore the temperature at which the natural complex substance (NCS) begins to boil under normal atmospheric pressure shall be determined.
- GLP compliance:
- no
- Type of method:
- distillation method
Test material
- Reference substance name:
- Orange, sour, ext.
- EC Number:
- 277-143-2
- EC Name:
- Orange, sour, ext.
- Cas Number:
- 72968-50-4
- Molecular formula:
- molecular formula is not available due to the UVCB nature of the substance
- IUPAC Name:
- (4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-1-ene
- Reference substance name:
- Oils, orange, sour
- EC Number:
- 614-782-1
- IUPAC Name:
- Oils, orange, sour
- Reference substance name:
- Bitter orange oil cold-pressed 1-fold
- IUPAC Name:
- Bitter orange oil cold-pressed 1-fold
- Details on test material:
- - Name of test material (as cited in study report): Bitter orange oil cold-pressed 1-fold
- Physical state: liquid
Constituent 1
Constituent 2
Constituent 3
Results and discussion
Boiling pointopen allclose all
- Boiling pt.:
- 152 °C
- Atm. press.:
- 1 020 hPa
- Remarks on result:
- other: Start of boiling
- Boiling pt.:
- 177 °C
- Atm. press.:
- 1 020 hPa
- Remarks on result:
- other: Start of distillation
Any other information on results incl. tables
No data
Applicant's summary and conclusion
- Conclusions:
- At a pressure of 1020 hPa, bitter orange oil starts to boil at 152 degrees Celsius, distillation starts at 177 degrees Celsius.
- Executive summary:
The boiling point of an essential oil is not a sharply defined characteristic because it is a mixture of substances in variable concentrations. Therefore the temperature at which the natural complex substance (NCS) begins to boil under normal atmospheric pressure was determined using the distillation method (comparable to OECD guideline 103).
At 1020 hPa, bitter orange oil was found to start boiling at 152 degrees Celsius, distillation started at 177 degrees Celsius.
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