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Diss Factsheets
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EC number: 268-211-2 | CAS number: 68037-36-5
- 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:
- 13 March 2017 - 18 July 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- > 73.1 - < 73.7 other: dynes/cm
- Temp.:
- 20 °C
- Conc.:
- 500 other: mg
- Conclusions:
- The surface tension of the test substance, using OECD Guideline method 115, was 73.4 ± 0.3 dynes/cm at 20.0°C.
- Executive summary:
The surface tension of the test substance, using OECD Guideline method 115, was 73.4 ± 0.3 dynes/cm at 20.0°C. Since the surface tension was >60 dynes/cm, the test substance is not considered to be surface active.
Reference
For the calibration difference between theoretical and experimental surface tension for the first series of test substance tests, the experimental value of 41.5 dynes/cm determined for the 500-mg weight was greater than the calculated value of 40.808 dynes/cm, resulting in a percent error of 1.70%. Taking into account the error of the weight, the results were not within the acceptance range of < 1%, and an additional calibration correction factor was needed:
F=S/Sa = F= 40.808 dynes/cm / 41.5 dynes/cm = 0.983 dynes/cm
The correction factor was factored into the determination of true surface tension.
Determination of the Surface Tension of Water: The experimental value of 73.7 dynes/cm determined for the distilled water compared well to the theoretical value of 72.75 dynes/cm, which yielded a percent difference of 1.34%. Since the experimental surface tension value of the distilled water was within 3% of the theoretical value, the instrument was verified to be operating correctly.
Determination of the Surface Tension of the Test Substance: The temperature during the definitive test ranged from 20.0 to 20.1°C. The true surface tension of the test substance was determined to be 73.4 ± 0.33 dynes/cm at 20.0°C as presented in the following table:
Replicate | Elapsed Time (min) | Apparent Surface Tension (dynes/cm) | Calibration Correction Factor | Instrument Correction Factor | True Surface Tension (dynes/cm) |
1 | 7 | 79.5 | 0.983 | 0.935 | 73.1 |
10 | 59.7 | 0.983 | 0.935 | 73.3 | |
14 | 80.1 | 0.983 | 0.935 | 73.7 | |
2 | MEAN | 73.3 | |||
6 | 80.1 | 0.983 | 0.935 | 73.7 | |
9 | 80.4 | 0.983 | 0.935 | 74.0 | |
16 | 79.9 | 0.983 | 0.935 | 73.5 | |
3 | MEAN | 73.7 | |||
5 | 79.6 | 0.983 | 0.935 | 73.2 | |
8 | 79.4 | 0.983 | 0.935 | 73.0 | |
13 | 79.7 | 0.983 | 0.935 | 73.3 | |
MEAN | 73.1 | ||||
OVERALL MEAN | 73.4±0.33 |
Since the surface tension was >60 dynes/cm, The test material is not considered to be surface active.
Description of key information
The surface tension of the test substance, using OECD Guideline method 115, was 73.4 ± 0.3 dynes/cm at 20.0°C.
Key value for chemical safety assessment
- Surface tension:
- 73.4
Additional information
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