Registration Dossier
Registration Dossier
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EC number: 294-461-7 | CAS number: 91722-61-1 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Juniperus mexicana, Cupressaceae.
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- March - September 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Auto-ignition temperature:
- 260 °C
- Atm. press.:
- 1 016.6 hPa
- Conclusions:
- Texas Cedarwood oil, distilled - Cedrol has a Auto flammability temperature of 260ºC at 1016.6 hPa.
- Executive summary:
The test item Texas Cedarwood oil, distilled - Cedrol has an Auto flammability temperature of 260ºC at 1016.6 hPa according to regulations EC A.15 and DIN 51794.
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- See attached read-across justification document
SOURCE: Cedarwood Texas oil, Cedrol (CW-TX-Cedrol) [EC not available, CAS not available]
TARGET: Cedarwood Texas oil, Crude (CW-TX-Crude) [EC 294-461-7, CAS 91722-61-1]
Introduction and hypothesis for the read-across
This read-across is based on the argument that target and source substances have similar physico-chemical properties due to the structural similarities in their constituents.
The target Cedarwood Texas oil, Crude (CW-TX-Crude) is a multi-constituent Unknown or Variable composition, Complex reaction products or Biological materials (UVCB) sub-category 3/Natural Complex Substance (NCS) substance (Table 1). The source Cedarwood Texas oil, Cedrol (CW-TX-Cedrol) is a distillation fraction from CW-TX-Crude and a UVCB sub-category 3/NCS. Both the target (CW-TX-Crude) and the source (CW-TX-Cedrol) have the same constituents with comparable concentrations in %w/w (Table 2). Therefore, the source and the target substances are structurally similar with common chemical functionalities (Table 1 and 2), which eventually make them to share similar physico-chemical profiles (Table 3). Moreover, both are obtained from the same biological source (wood of Juniperus mexicana (Cupressaceae)) by distillation.
An Auto-flammability test result in accordance with the EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases)) and DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature) is available for the source substance. However, test result for the same physico-chemical property is missing for the target substance. The hypothesis herein is that CW-TX-Crude is expected to have the same auto-flammability profile as its analogue CW-TX-Cedrol based on the common structural and physico-chemical profiles. Consequently, a read-across from the existing physico-chemical property study on the source substance is considered as an appropriate adaptation to the standard information requirements of the REACH Regulation for the target substance, in accordance with the provisions of Annex XI, 1.5 of the REACH Regulation. - Reason / purpose for cross-reference:
- read-across source
- Key result
- Auto-ignition temperature:
- 260 °C
- Atm. press.:
- 1 016.6 hPa
- Conclusions:
- Texas Cedarwood oil, distilled - Cedrol has an Auto flammability temperature of 260ºC at 1016.6 hPa.
- Executive summary:
The test item Texas Cedarwood oil, distilled - Cedrol has an Auto flammability temperature of 260ºC at 1016.6 hPa according to regulations EC A.15 and DIN 51794.
Referenceopen allclose all
Description of key information
The auto flammability of Cedarwood Texas oil - Crude is read-acrossed from Texas Cedarwood oil, distilled - Cedrol with an Auto flammability temperature of 260ºC at 1016.6 hPa.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 260 °C
Additional information
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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