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EC number: 225-897-8 | CAS number: 5137-70-2
- 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:
- 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Also in accordance to GLP
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- yes
- Remarks:
- surface tension of distilled water (control) = 70.9 mN/m instead of 71.0 mN/m. Considered to not affect the validity of the study.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- yes
- Remarks:
- surface tension of distilled water (control) = 70.9 mN/m instead of 71.0 mN/m. Considered to not affect the validity of the study.
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2015-07-28
- Type of method:
- ring method
- Surface tension:
- 24.4 mN/m
- Temp.:
- 20.1 °C
- Conc.:
- 1 g/L
- Conclusions:
- The mean surface tension of the test item diluted at 1 g/L in distilled water at 20.1 °C was 24.4 mN/m.
Following EC A5 method, the test item was considered as surface-active in the experimental conditions used. - Executive summary:
In a GLP study following the OECD guideline, the Surface Tension of the dodecylphosphonic acid was determinated to be 24.4 mN/m at 20.1 °C
Reference
Verification with distilled water
Temperature (°C) |
20.0 |
Time |
Surface tension (mN/m) |
After 19 s |
71.17 * |
After 80 s |
70.98 |
After 141 s |
70.91 |
After 203 s |
70.89 |
Result |
70.9 |
*value not taken into account (SD>0.1 mN/m between the three first values)
The mean surface tension of distilled water was 70.9 mN/m at 20.0 °C, measurement vessel was considered to be clean and ready for use.
Deviation: For EC A5 test, the measurements of surface tension for distilled water were out of the range defined for the verification of the cleanliness of the measurement vessel (70.9 mN/m instead of 71.0 mN/m). The quality criterium determined by DEFITRACES (standard deviation lower than 0.1 mN/m between three consecutive values) was 0.13 for the three first measurements but was lower than 0.1 for the three last measurements. Since this difference was very weak, the result was accepted.
This deviation was not considered to have affected the quality or the interpretation of
the results obtained.
Measurements on the test item diluted at 1 g/L in distilled water
Preparation of the solution:
A quantity of about 1.000 g (to the nearest 1 mg) of the test item was weighed into a 1000-mL volumetric flask and the volume was made up with distilled water. The solution was magnetically stirred during about 6 days and 21 hours.
Assay N° 1 |
|
Temperature: 20.2 °C |
|
Time |
Surface tension (mN/m) |
After 23 s |
24.82 |
After 84 s |
24.74 |
After 145 s |
24.74 |
Mean result |
24.8 |
Assay N° 2 |
|
Temperature: 20.0 °C |
|
Time |
Surface tension (mN/m) |
After 19 s |
24.24 |
After 80 s |
24.20 |
After 141 s |
24.19 |
Mean result |
24.2 |
Assay N° 3 |
|
Temperature: 20.1 °C |
|
Time |
Surface tension (mN/m) |
After 18 s |
24.23 |
After 79 s |
24.19 |
After 140 s |
24.20 |
Mean result |
24.2 |
Description of key information
The surface tension was determined to be equal to 24.4 mN/m at 20 °C and a concentration of 1g/L
Key value for chemical safety assessment
- Surface tension:
- 24.4
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
An experimental study, scored as Klimisch 1, was selected as a key study. It was performed in compliance with GLP according to EC A.5 test method and OECD 115 test guideline.
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.
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