Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 700-938-7 | CAS number: 72716-26-8
- 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:
- 22 November 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Surface tension:
- 34.6 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 008 mg/L
- Remarks on result:
- other: As the surface tension value was lower than 60 mN/m, the test material is classed as surface active.
- Conclusions:
- Under the conditions of the test, the surface tension of the test material was determined to be 34.6 mN/m at 20 °C, using the ring method.
- Executive summary:
The surface tension of the test material was determined using the ring method in a study performed under GLP conditions and in accordance with the standardised guidelines OECD 115 and EU Method A.5.
The test material was dissolved in ultrapure water and thoroughly mixed at a constant temperature (20 ± 1°C), yielding a concentration of 1008 mg/L. The solution was transferred to the measurement vessel. The measurement vessel was placed on the sample table. The sample was raised until the ring was immersed below the surface of the liquid. Then the table was gradually and evenly lowered at a rate of approximately 0.5 cm/min while the force was increased until the maximum force was reached.
In order to describe the time dependence of the surface tension after transferring the solution to the measurement vessel, repeated measurements were carried out with increasing the equilibrium time. A constant surface tension was reached after about 240 sec.
The mean surface tension of test material in aqueous solution was determined to be 36.3 mN/m at 20 °C. The equilibrium time for these five measurements was 240 sec. The measured surface tension was multiplied by φa and then corrected according to Harkins and Jordan by 1.9 mN/m, resulting in a corrected surface tension of 34.6 mN/m. Since the surface tension was lower than 60 mN/m, the test material is classed as surface active.
Reference
- Results:
In order to describe the time dependence of the surface tension after transferring the solution to the measurement vessel, repeated measurements were carried out with increasing the equilibrium time. A constant surface tension was reached after about 240 sec (see Table 1).
The surface tension of the test material as an aqueous solution read on the instrument was 36.3 mN/m at 20 °C using the ring method representing the mean of five separate measurements. The equilibrium time for these five measurements was 240 sec. The details are shown in Table 2.
The measured surface tension was multiplied by φa and then corrected according to Harkins and Jordan (see Table 3) by 1.9 mN/m, resulting in a corrected surface tension of 34.6 mN/m.
As the surface tension value was lower than 60 mN/m, the test material is classed as surface active.
Table 1: Time Dependence of the Surface Tension After Transferring the Solution to the Measurement Vessel
Surface Tension (mN/m) |
Equilibrium time (sec) |
36.8 |
120 |
36.2 |
180 |
36.2 |
240 |
Equilibrium time = time after transferring the solution to the vessel until measuring the surface tension of the solution
Table 2: Measured Surface Tension Values and Equilibrium Times
Surface Tension (mN/m) |
Equilibrium time (sec) |
36.2 |
240 |
36.4 |
240 |
36.5 |
240 |
36.3 |
240 |
36.3 |
240 |
Equilibrium time = time after transferring the solution to the vessel until measuring the surface tension of the solution
Table 3: Correction of the Measured Surface Tension
Surface Tension (mN/m) |
Equilibrium time (sec) |
20 |
18.1 |
22 |
20.1 |
24 |
22.1 |
26 |
24.1 |
28 |
26.1 |
30 |
28.1 |
32 |
30.1 |
34 |
32.1 |
36 |
34.1 |
38 |
36.1 |
40 |
38.2 |
42 |
40.3 |
44 |
42.3 |
46 |
44.4 |
48 |
46.5 |
50 |
48.6 |
52 |
50.7 |
54 |
52.8 |
56 |
54.9 |
58 |
57.0 |
60 |
59.1 |
62 |
61.3 |
64 |
63.4 |
66 |
65.5 |
68 |
67.7 |
70 |
69.9 |
72 |
72.0 |
The measured value was extrapolated according to this table.
Description of key information
Surface tension 34.6 mN/m at 20 °C, OECD 115, EU Method A.5, Sárvári (2012d).
Key value for chemical safety assessment
- Surface tension:
- 34.6
- in mN/m at 20°C and concentration in mg/L:
- 1 008
Additional information
In the key study (Sárvári, 2012d) the surface tension of the test material was determined using the ring method in a study performed under GLP condition and in accordance with the standardised guidelines OECD 115 and EU Method A.5.
The test material was dissolved in ultrapure water and thoroughly mixed at a constant temperature (20 ± 1°C), yielding a concentration of 1008 mg/L. The solution was transferred to the measurement vessel. The measurement vessel was placed on the sample table. The sample was raised until the ring was immersed below the surface of the liquid. Then the table was gradually and evenly lowered at a rate of approximately 0.5 cm/min while the force was increased until the maximum force was reached.
In order to describe the time dependence of the surface tension after transferring the solution to the measurement vessel, repeated measurements were carried out with increasing the equilibrium time. A constant surface tension was reached after about 240 sec.
The mean surface tension of test material in aqueous solution was determined to be 36.3 mN/m at 20 °C. The equilibrium time for these five measurements was 240 sec. The measured surface tension was multiplied by φa and then corrected according to Harkins and Jordan by 1.9 mN/m, resulting in a corrected surface tension of 34.6 mN/m.
Since the surface tension was lower than 60 mN/m, the test material is classed as surface active.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.