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EC number: 290-260-3 | CAS number: 90106-38-0 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Rosa damascena, Rosaceae.
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 05 to 21 September 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Justification for type of information:
- The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- GLP certificate (inspected on 13 and 14 October 2014 / signed on 8 April 2015)
- Type of method:
- method to determine freezing temperature
- Key result
- Melting / freezing pt.:
- < 20 °C
- Conclusions:
- The freezing point of test item was stated as < - 20 °C (< 253.15 K). No further testing is required.
- Executive summary:
The freezing point of the test substance was determined under GLP according to OECD 102 / EU A1 guideline.
In a pre-test; the test item was filled into glass vessels and stored at – 80, – 20 and 5 °C for a period of 24 hours. This pre-test did not show a clear phase transition of the substance. Another pre-test was then performed in cooling bath of a mixture of acetone and dry ice. The substance was not really solid at down to -74.7°C and finally, no constant temperature, which would demonstrate a phase transition, was observed.
Therefore no clear phase transition and no freezing point was determined down to -74.7 °C.
According to Regulation (EC) No 1907/2006 (REACH) annex VII, column 2 of section 7.2, the determination of the melting- / freezing point does not need to be conducted below a lower limit of - 20 °C. Therefore no additional test was conducted considering that the test item was still liquid (not really solid) at -20°C.
Reference
Pre-test
The test item was filled into glass vessels and stored at a nominal temperature of - 80, – 20 and 5 °C.
Table 1.-Values Pre-Test
Room Temperature |
3.5°C |
-20.1°C |
-80°C |
slightly viscous liquid* |
nearly to solid* |
paste-like solid* |
paste-like solid* |
*visual control
The pre-test did not allow to determine a clear phase transition of the substance and a visual control of the appearance of the substance appeared not sufficient to determine clearly the physical state of the substance at the tested temperatures.To better understand the behavior of the substance with a decreasing of temperature, another pre-test was performed in cooling bath of a mixture of acetone and dry ice.
Pre-test Freezing point
A cooling bath with a mixture of acetone and dry ice was prepared. A thermometer (testo 720) for measuring the temperature of the cooling bath was set in. The test tube (30 * 300 mm) containing 20 mL test item and a thermometer (TTI 9) to measure the temperature of the test item were fixed on a stand above the test tube. The test tube was then moved into the cooling bath and the thermometer was introduced in the test substance. During the cooling down phase, the test item was stirred vigorously with a stainless steel wire sling.
At approx. -20 °C the test item was paste-like solid and the colour was separated to yellow-orange and brown. The physical state of the substance was evaluated first with a stirrer and later (because the stirrer got stuck) with another very long thin wire, wich was in the test vessel as well.
The test item was more and more harder but no constant temperature of the test item was observed down to – 74.7 °C (temperature of cooling bath – 79.5 °C) and no clear freezing point of the test item was determined down to -74.7 °C. The test was stopped.
After stopping the appearance of the test item returned to normal state at room temperature.
No observations were made which might cause doubts on the validity of the study outcome.Therefore, the result of the study is considered valid.
Description of key information
The freezing point of the test item was determined as < - 20 °C (< 253.15 K). No further testing required.
Key value for chemical safety assessment
Additional information
A reliable GLP experimental study, conducted according to a recognized OECD/EC guidelines is available.
It is considered as a key study.
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.