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EC number: 604-846-7 | CAS number: 152390-17-5
- 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:
- Study initiation date: 2021-02-02;
Experimental completion date: 2021-02-18 - Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 14370 - Surface active agents - Determination of surface tension
- Version / remarks:
- 2004
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- European Commission Regulation (EC) No. 440/2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- > 60 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1.005 g/L
- Remarks on result:
- other: No surface-active properties
- Conclusions:
- Surface tension (OECD 115; A.5) >60 mN/m at 20 °C
- Executive summary:
The surface tension of the test item MAT-144 was determined in a reliable and valid study performed compliant with GLP according to OECD 115 (1995) as well as EU method A.5 using the ring-method.
An aqueous solution of the test item in demineralized water with a concentration of 1005 mg/L was prepared and stirred at ambient temperature for 23 h. After adapting to 20 °C, the measurement of the surface tension with the test item was carried out at 20 ± 0.5 °C (20.5 °C). Six measurements were performed at an interval of approx. 2 min. Because the surface tension of the test item showed a time-dependence (slightly decreasing from 63.32 mN/m to 62.91 mN/m over ca. 10 min) the stability criterion of the test method could not be met. In a second measurement, a tendency was observed, too. But since no tendency could be detected in the test measurement with water, it was assumed that this tendency was due to the physical-chemical properties of the dissolved test item.
Due to the fact that the surface tension showed a time-dependence, no mean value could be reported. However, as the surface tension was higher than 60 mN/m, the test item is concluded to have no surface-active properties.
Reference
In the water solubility study (PS20200294-5), the test item was found to be completely miscible with water. Therefore, an aqueous solution of the test item in demineralized water with a concentration of 1005 mg/L was prepared and stirred at ambient temperature for 23 h. After adapting to 20 °C the measurement of the surface tension with the test item was carried out at 20 ± 0.5°C (20.5 °C), as follows:
The solution to be measured was 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 below and the Figure 1 given in the illustration attached to this endpoint study record). 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. After an equilibration time of the dissolved test item of about 20 min, 6 measurements were performed at an interval of approx. 2 min. As the surface tension of the test item showed a time-dependence the stability criterion of the test method could not be met. In a second measurement (data not shown) a tendency was observed, too. But since no tendency could be detected in the test measurement with water, it was assumed that this tendency was due to the physical-chemical properties of the dissolved test item.
Measurement | 1 | 2 | 3 | 4 | 5 | 6 |
Time (s) | 1238 | 1359 | 1479 | 1600 | 1721 | 1841 |
Time interval to the previous measurement (s) | -- | 121 | 120 | 121 | 121 | 120 |
s (mN/m) uncorrected | 68.81 | 68.73 | 68.63 | 68.56 | 68.47 | 68.40 |
s (mN/m) corrected according to Zuidema and Waters [1] | 63.32 | 63.23 | 63.14 | 63.06 | 62.98 | 62.91 |
[1] Zuidema, H., Waters, C.W., Ind. Eng. Chem. Analyt. 13 (1941), S. 312
Due to the fact that the surface tension showed a time-dependence no mean value could be reported. However, the surface tension was higher than 60 mN/m, the test item had no surface-active properties.
Description of key information
Surface tension (OECD 115; A.5) >60 mN/m at 20 °C
Key value for chemical safety assessment
- Surface tension:
- 62.91
- in mN/m at 20°C and concentration in mg/L:
- 1 005
Additional information
The surface tension of the test item MAT-144 was determined in a reliable and valid study performed compliant with GLP according to OECD 115 (1995) as well as EU method A.5 using the ring-method.
An aqueous solution of the test item in demineralized water with a concentration of 1005 mg/L was prepared and stirred at ambient temperature for 23 h. After adapting to 20 °C, the measurement of the surface tension with the test item was carried out at 20 ± 0.5 °C (20.5 °C). Six measurements were performed at an interval of approx. 2 min. Because the surface tension of the test item showed a time-dependence (slightly decreasing from 63.32 mN/m to 62.91 mN/m over ca. 10 min) the stability criterion of the test method could not be met. In a second measurement, a tendency was observed, too. But since no tendency could be detected in the test measurement with water, it was assumed that this tendency was due to the physical-chemical properties of the dissolved test item.
Due to the fact that the surface tension showed a time-dependence, no mean value could be reported. However, as the surface tension was higher than 60 mN/m, the test item is concluded to have no surface-active properties.
The last from the interval of six measured values (lowest value) is given as the key value because no relational operators can be used for key values.
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