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EC number: 283-907-6 | CAS number: 84775-78-0 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Ascophyllum nodosum, Fucaceae.
- 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:
- 14-Oct-2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: This study has been performed according to OECD and EU guidelines and according to GLP principles.
- 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 (incl. QA statement)
- Type of method:
- ring method
- Surface tension:
- 51.1 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: mean of three determinations
- Conclusions:
- From the experimental data obtained according to the guideline A.5 in Official Journal L 383 Part A, it can be concluded that the surface tension at 20°C of the 1 g/L Test item aqueous solutions was 51.1 mN/m.
According to the interpretation of the results suggested in the A.5 official method, the Algea Fert Solid K +formulation sample should be regarded as a surface-active material.
Reference
Results
The determinations were performed at 20.0 ±and at this temperature, the tabulate value for water is 72.75 mN/m.
After zero point adjustment, the surface tension of the distilled water (sg) was determined to be 72.42 mN/m; therefore the calibration factor was calculated to be f (water) = 1.0045.
The test item was tested at aqueous dilutions of 1 g/L, in accordance with OJEC indications.
The aqueous solution was maintained at 20.0 ±in a thermostatic oven and then tested.
Six measurements were performed at; data are reported in Table 1 and results in Tables 2 and 3.
TABLE 1 Algea Fert Solid K +: surface tension values at.
Measurement values
Measurements |
Test item dilution 1 g/L (mN/m) |
Measurements |
Test item dilution 1 g/L (mN/m) |
1st measure |
52.0 |
4th measure |
52.3 |
2nd measure |
52.2 |
5th measure |
52.1 |
3rd measure |
52.0 |
6th measure |
52.0 |
Mean (a) |
52.1 |
||
S.D. |
0.12 |
||
RSD% |
0.22% |
TABLE 3 Algea Fert Solid K +: surface tension at.
Correction with water calibration
Measurements |
Test item dilution 1 g/L (mN/m) |
Mean (a) (mN/m) |
52.1 |
Water calibration factor |
1.0045 |
Corrected values (b) (mN/m) |
52.3 |
TABLE 4 Algea Fert Solid K +: surface tension at.
Correction Table and interpolation method
Sample solution (mg/L) |
Corrected values (b) (mN/m) |
Tab. X1 (mN/m) |
Tab. X2 (mN/m) |
Tab. Y1 (mN/m) |
Tab. Y2 (mN/m) |
Slope (m) |
Interc. (q) |
St (mN/m) |
Test item Dilution 1 g/L (mN/m) |
52.3 |
50.7 |
52.8 |
52.0 |
54.0 |
0.9524 |
3.7143 |
51.1 |
Description of key information
Key value for chemical safety assessment
- Surface tension:
- 51.1
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
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