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Diss Factsheets
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EC number: 206-992-3 | CAS number: 420-04-2
- 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:
- 2007-08-14
- 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:
- yes
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- 72.86 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
The surface tension of the test item is 72.86 mN/m. The test item is not considered as surface active as the surface tension is greater than 60 mN/m.- Executive summary:
The objective of the study was to determine the surface tension of the test substance Cyanamid F1000. The surface tension was determined by the OECD ring method with an interfacial tensiometer according to the EU method A.5 and the OECD Guideline 115. The saturation concentration of Cyanamid F1000 in water is > 1 g/L at 20 °C. According to the guidelines the surface tension was therefore determined with a solution of about 1 g/L in water. Five determinations of the Cyanamid F1000 solution were performed. The surface tension was constant during the test. The mean value was therefore calculated from the determinations obtained 1 h 15 min after the preparation and later. The age of the surface was 1 h 15 min to 1 h 35 min. The mean surface tension of the test substance was 72.86 mN/m, standard deviation 0.000, at a temperature of 20.0 °C. According to the EU directive Cyanamid F1000 is not a surface active substance because its surface tension is greater than 60 mN/m.
Reference
The surface tension was constant during the test. The mean value was therefore calculated from the determinations obtained 1 h 15 min after the preparation and later. The age of the surface was 1 h 15 min to 1 h 35 min. The mean surface tension of the test substance was 72.86 mN/m, standard deviation 0.000, at a temperature of 20 °C.
Description of key information
The surface tension of the test item is 72.86 mN/m. The test item is not considered as surface active as the surface tension is greater than 60 mN/m.
Key value for chemical safety assessment
- Surface tension:
- 72.9
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The surface tension of Cyanamid F1000 was determined by the OECD ring method with an interfacial tensiometer according to the EU method A.5 and the OECD Guideline 115. Five determinations of the Cyanamid F1000 solution were performed. The surface tension was constant during the tests. The mean value was therefore calculated from the determinations obtained 1 h 15 min after the preparation and later. The age of the surface was 1 h 15 min to 1 h 35 min. The mean surface tension of the test substance was 72.86 mN/m, standard deviation 0.000, at a temperature of 20.0 °C. According to the EU directive Cyanamid F1000 is not a surface active substance because its surface tension is greater than 60 mN/m.
Another two studies determined the surface tension of Cyanamid L500 (solution of 50.2% cyanamide). The concentration of cyanamide in the study of Wenighofer was around 1 g/L which is the same concentration that was used in the study with Cyanamid F1000, therefore the two studies are compatible. The resulted mean surface tension was 72.75 mN/m. The result of the second supporting study that was performed with Cyanamid L500 in a concentration of 50.1 % was 62.5 mN/m. Following the key study, it can be concluded that Cyanamid F1000 is not a surface active substance because its surface tension is greater than 60 mN/m.
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