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EC number: 500-446-0 | CAS number: 160901-09-7 1 - 2.5 moles ethoxylated
- 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:
- 16 Apr-12 July 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Surface tension:
- 28.5 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: Calibration factor 1.039 (test 2: result accepted); test concentration: 90% of a saturated solution
Reference
Measured value of the surface tension of water : 65.5 mN/m
EC standard reading for surface tension of water : 72.75 mN/m
Calibration factor is: 72.75/65.5=1.111
Full test results
Test No |
Test Temp (°C) |
Solution Age (mins) |
Surface Tension Reading (mN/m) |
Corrected Value using calibration factor (mN/m)* |
Corrected Value for Harkins-Jordan Correction** (mN/m) |
1 |
20 |
25 |
41.0 |
45.5 |
43.9 |
2 |
20 |
30 |
40.5 |
45.0 |
43.4 |
The water solubility was taken from the calculated estimate, which was found to be 1.69 – 69.3 mg/L. Therefore a 90 % saturated solution was prepared for the surface tension measurement. Upon the sponsor’s request, testing was repeated to investigate the effect of solution age on the surface tension.
Measured value of the surface tension of water : 70.0 mN/m
EC standard reading for surface tension of water : 72.75 mN/m
Calibration factor is: 72.75/70.0=1.039
Full test results
Test No |
Test Temp (°C) |
Solution Age (mins) |
Surface Tension Reading (mN/m) |
Corrected Value using calibration factor (mN/m)* |
Corrected Value for Harkins-Jordan Correction** (mN/m) |
1 |
20 |
28 |
29 |
30.1 |
28.2 |
20 |
60 |
29 |
30.1 |
28.2 |
|
20 |
88 |
29 |
30.1 |
28.2 |
|
20 |
148 |
29.5 |
30.7 |
28.2 |
|
2 |
20 |
3 |
29.5 |
30.7 |
28.2 |
20 |
15 |
29 |
30.1 |
28.2 |
|
20 |
30 |
29 |
30.1 |
28.2 |
|
20 |
50 |
29 |
30.1 |
28.2 |
|
20 |
65 |
29 |
30.1 |
28.2 |
|
20 |
75 |
29 |
30.1 |
28.2 |
*The calibration factor is determined by measuring the Surface Tension of water and comparing the value obtained in literature. ** The corrected value is taken from a table compiled on the basis of the Harkins-Jordan correction. This correction factor is dependent on the dimensions of the measurement ring.
As with the initial test the water solubility was taken from the calculated estimate, which was found to be 1.69 – 69.3 mg/L. A 90 % saturated solution was prepared for the surface tension measurement. 0.11 g of test substance was used to saturate 125 mL of water (Test No 1). After saturation, the solution was allowed to equilibrate for more than 24 hours for aggregations to settle to the surface. The solution was inspected to ensure that no aggregation was sampled for the test solution preparation. 18 mL of aggregate free solution was sampled from near the bottom of the flask and then diluted to 20 mL with water to obtain 90 % saturation.
For Test No 2, 2.47 g of the test material was used for the saturation of 125 mL of water. The same approach was employed as above to prepare the 90% saturated solution for Test No 2.
Description of key information
28.5 mN/m at 20 °C (EU Method A.5, ring method)
Key value for chemical safety assessment
- Surface tension:
- 28.5
Additional information
The surface tension of the substance was determined according to EU method A.5 (ring method). The concentration of the test solution was 90% of the saturation concentration in water.
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