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EC number: 294-470-6 | CAS number: 91722-69-9 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Lavandula hybrida, Labiatae.
- 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
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 20 to 23 May 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- 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 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- Principles of method if other than guideline:
- Not applicable.
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- inspected on 13 and 14 October 2014 / signed on 08 April 2015
- Type of method:
- plate method
- Key result
- Surface tension:
- 51.85 mN/m
- Temp.:
- 19.8 °C
- Conc.:
- 326.18 mg/L
- Remarks on result:
- other: The concentration of the test item in the 90% saturated test solution was determined with 326.18 mg test item/L (based on analysis of dissolved organic carbon in the test solution).
- Conclusions:
- The surface tension of an aqueous solution of the test item (at 90% saturated concentration, measured at 326.18 mg of test item/L using a loading rate of 1g/L of test item) was determined as 51.85 ± 0.23 mN/m at 19.8 °C.
According to EU A.5 criteria, as the result is below the threshold value of 60 mN/m, the substance is considered to have surface active potential under the experimental conditions. However, since the structures of the constituents of the substance are not characteristic of true surfactants and that it is not an intended use of the substance (i.e. not a desired property), this conclusion should be taken with caution. - Executive summary:
The surface tension of test item was determined according to EU method A.5 and OECD 115under GLP using the plate method.
A saturated solution was obtained from an aqueous solution prepared with 1 g/L of test item slow-stirred for 72 h.The concentration of the test item in the 90 % saturated test solution was determined to be 326.18 mg/L (based on analysis of dissolved organic carbon).
The surface tension of the negative control lay within the accepted range.
The surface tension of the test item in aqueous solution was determined as 51.85 ± 0.23 mN/m at 19.8 °C.
One measurement series was performed for verification (after 62minutes). No significant changes and thus no significant dependence on time were observed.
Reference
Table 4.10.1: Observations
Test |
Mass (g) |
Surface tension, Mean ± SD (mN/m) |
Temperature (°C) |
Negative control |
0.2982 -0.2988 |
72.82 ± 0.04 |
20.5 |
Test substance: First series |
0.2099 -0.2133 |
51.85 ± 0.23 |
19.8 |
Test substance: Second series |
0.2140 -0.2165 |
52.66 ± 0.17 |
19.9 -20.1 |
- Detailed findings of each step are provided in the study report.
- The test substance solution was held at constant temperature (20.0 ± 0.5 °C). 62 minutes after conclusion of the first measurement series, a second measurement series was performed for verification purposes.
- After conclusion of the first and the second measurement series, the difference between mean values was less than 5 %. Therefore, equilibrium was considered reached, no additional measurement series was required and the result of the first measurement series was stated.
- During a certain period of time, no relevant changes in the surface tension were detected. In dependence on time and temperature, values between 51.20 and 52.81 mN/m were recorded showing no significant variations (< 5 %). As the determined surface tension of test substance was lower than 60 mN/m, the test substance can be considered to have potential for surface activity.
Results of DOC analysis of the filtrated test solution:
- Measured DOC value (A): 247.67 mg of organic carbon/L
- Organic carbon content (B): 75.93%
- Concentration of the 90 % saturated test item = A / B = 326.18 mg of test item/L
Description of key information
Surface tension = 51.85 mN/m at 19.8°C on an
aqueous solution at 90% saturated concentration using a loading rate of
1g/L of test item (concentration measured at 326.18mg of test item/L).
Since the measured result is below the threshold value of 60 mN/m,
according to EU A5 criteria, the substance is considered to have
surface-active potential under the exprimental conditions.
However, since the structures of the constituents of the substance are not characteristic of trus surfactant, this conclusion should be taken with caution.
Key value for chemical safety assessment
- Surface tension:
- 51.85
- in mN/m at 20°C and concentration in mg/L:
- 326.18
Additional information
A fully reliable experimental study, conducted according to a recognized OECD/EU method and under GLP, is available. It is considered as a key study, and the result is retained as key value.
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.