Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 284-294-8 | CAS number: 84837-14-9 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Thymus mastichina, Labiatae.
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Dec 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
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The test item is a mixture of constituents and transition from liquid to solid will not be sharp. The „Guidance on information requirements and chemical safety assessment Chapter R.7a: Endpoint specific guidance” from ECHA (2008), mentioned that "Melting points are not normally carried out for mixtures“. In addition, according to column 2, point 7.2 of Annex VII of Regulation (EC) 1907/2006 (REACH), "The study does not need to be conducted below a lower limit of -20°C“.
Therefore it is recommended in the EFFA/EFEO guideline „The Registration for REACH of Natural Complex Substances used as Fragrance Ingredients” to describe the state of the essential after equilibrium at +20°C, +5°C and -20°C. - GLP compliance:
- no
- Type of method:
- other: visual observation
Test material
- Reference substance name:
- Thyme, Thymus mastichina, ext.
- EC Number:
- 284-294-8
- EC Name:
- Thyme, Thymus mastichina, ext.
- Cas Number:
- 84837-14-9
- Molecular formula:
- Not relevant for UVCB
- IUPAC Name:
- Thyme, Thymus mastichina, ext.
- Test material form:
- liquid: volatile
Constituent 1
- Specific details on test material used for the study:
- batch number LS104075
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- < -20 °C
- Decomposition:
- no
- Sublimation:
- no
Any other information on results incl. tables
|
Applicant's summary and conclusion
- Conclusions:
- The freezing point of the marjoram essential oil is below -20°C.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
