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EC number: 908-712-1 | CAS number: -
- 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:
- 24 October 2019 - 29 November 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 31 May 2008
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- adopted 27 July 1995
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
- Specific details on test material used for the study:
- Name: Reaction mass of 2-methylbutyl butyrate and pentyl butyrate
Chemical name: Pentyl butyrate (n-Amyl butyrate) – 64.74%,
2-Methylbutyl butyrate (i-Amyl butyrate) – 35.06%
Description: Clear colourless to pale yellow liquid
Purity: 99.80% (multi-constituent)
Storage conditions: Controlled room temperature (15-25 °C, ≤ 70% relative humidity)
Safety precautions: Routine safety precautions (gloves, goggles, face mask, lab coat) for unknown materials will be applied to ensure personnel health and safety. - Surface tension:
- 65.75 mN/m
- Temp.:
- 21.5 °C
- Conc.:
- 112 mg/L
- Conclusions:
- The surface tension of the test item was 65.75 mN/m, so the test item is considered as non-surfactant substance
- Executive summary:
The determination of the surface tension was carried out on the test item by a Krüss K11 Tensiometer using the ring method. The surface tension value was found to be 65.75 mN/m with 1.78 RSD% at 21.5°C ± 0.1°C. As the surface tension value of the aqueous solution of the test item (at 90% of saturated level) was greater than 60 mN/m, Reaction mass of 2-methylbutyl butyrate and pentyl butyrate is classified as not being a surface active substance.
Reference
The measured and corrected surface tension values of the test solution
Measurement | Temperature | Surface tension | RSD % | Mean | RSD % | Corrected surface tension | |
°C | mN/m | mN/m | mN/m | mean (mN/m) | |||
1 | 21.57 | 65.77 | 0.06 | 64.66 | 1.78 | 66.88 | 65.75 |
2 | 21.56 | 63.47 | 0.05 | 64.55 | |||
3 | 21.59 | 64.73 | 0.02 | 65.83 |
RSD%: relative standard deviation
The individual surface tension values of test item in aqueous solution was found to be between 63.4 and 65.8 mN/m at 21.5°C ± 0.1°C using the ring method (when each individual value represents the mean of at least five determinations for each measurement).
The measured values were corrected with Harkins-Jordan correction factor. The measured surface tension was multiplied by the proper Φ𝑏 resulting in a corrected surface tension of 65.75 mN/m with 1.78 RSD%.
As the surface tension value of the aqueous solution of the test item (at 90% of the saturation level of the solution with approximately 3-day age) was higher than 60 mN/m, Reaction mass of 2-methylbutyl butyrate and pentyl butyrate is classified as not being a surface active substance.
DEVIATION TO THE STUDY PLAN
The in-life phase was not audited by the Quality Assurance Unit due to technical reasons, but considering, that such in-life phases were audited regularly, this fact has no effect to the Study results.
Description of key information
Study conducted to recognised testing guidelines with GLP certification.
Key value for chemical safety assessment
- Surface tension:
- 65.75
- in mN/m at 20°C and concentration in mg/L:
- 112
Additional information
The surface tension value was found to be 65.75 mN/m with 1.78 RSD% at 21.5°C ± 0.1°C, concentration 112 mg/L
OECD 115 guidelines state:
The measurement shall be made at approximately 20°C and shall be controlled to within ± 0.5 °C.
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