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Diss Factsheets
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EC number: 279-015-1 | CAS number: 78952-61-1
- 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
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Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- 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
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- no
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- OECD harmonised ring method
- Surface tension:
- 52.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of the aqueous solution at 20 °C has a mean value of 52.8mN/m.
The test item has surface-active properties.
Reference
An aqueous solution of the test item in de-ionized water with a concentration of 1,000.5 mg/L was prepared, stirred for 24 hours at room temperature and the solution was adapted to the measurement temperature for 30 minutes. After adapting to 20 °C the measurement of the surface tension with the test item was carried out at 20 ±0.5 °C (20.1 °C), as follows:
The solution to be measured is transferred to the measurement vessel, taking care to avoid foaming. The measurement vessel was placed on the table of the test apparatus. The measurement vessel was raised until the ring was immersed below the surface of the solution. The time from starting the measurement was recorded (see table 1 and figure 1). Subsequently, the table top was lowered gradually and evenly at a rate of 0.3 cm/min to detach the ring from the surface until the maximum force was reached. The force was read on the tensiometer. The measurements were repeated until a constant surface tension value in 6 measurements is reached.
Table 1: Measured surface tensions
Measurement |
1 |
2 |
3 |
4 |
5 |
6 |
Time (s) |
778 |
840 |
901 |
963 |
1025 |
1087 |
s(mN/m) uncorrected |
58.26 |
58.22 |
58.14 |
58.10 |
58.05 |
58.01 |
s(mN/m) corrected by Zuidema and Waters [1] |
52.95 |
52.91 |
52.84 |
52.78 |
52.74 |
52.70 |
[1] Zuidema, H., Waters, C.W.,Ind. Eng.Chem. Analyt.13 (1941), S. 312
The test item has a mean surface tension of 52.8 mN/m. As the surface tension is lower than 60 mN/m, the test item has surface-active properties.
Description of key information
The surface tension of the aqueous solution at 20 °C has a mean value of 52.8 mN/m. The test item has surface-active properties.
Key value for chemical safety assessment
- Surface tension:
- 52.8
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
An aqueous solution of the test item in de-ionized water with a concentration of 1000.5 mg/L was prepared, stirred for 24 hours at room temperature and the solution was adapted to the measurement temperature for 30 minutes. After adapting to 20 °C the measurement of the surface tension with the test item was carried out at 20 ± 0.5°C (20.1 °C).
The test item has a mean surface tension of 52.8 mN/m. As the surface tension is lower than 60 mN/m, the test item has surface-active properties.
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.
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