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EC number: 271-668-0 | CAS number: 68603-62-3
- 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
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24 July 2017 - 03 November 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- Preliminary test, in accordance with EU Method A.6.. The test item is a surface active substance with an extremely complex composition consisting of multiple constituent groups. Neither the column elution method nor shake flask method were deemed suitable for a substance of this nature. Potentially inaccurate water solubility values were anticipated due to emulsification (shake-flask method) or secondary interactions (column elution method). It was therefore believed that a screening approach, using the preliminary test described in the guideline would yield the most reliable and representative water solubility value for this test item. It should be noted that comparable solubility values were achieved in aqueous media when the test item underwent aquatic ecotoxicological testing.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- Regulation (EC) 440/2008 of 30 May 2008
- Deviations:
- no
- Remarks:
- Preliminary test performed in accordance with method described in guideline.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- July 1995
- Deviations:
- no
- Remarks:
- Preliminary test performed in accordance with method described in guideline.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: Visual observation.
- Remarks:
- As per the preliminary test method described in EU Method A.6. and OECD 105.
- Key result
- Water solubility:
- >= 10 - <= 22 mg/L
- Temp.:
- 21.1 °C
- pH:
- 7.32
- Conclusions:
- Water solubility in ultra-pure grade water at 21.1 °C was determined to be between 10 and 22 mg/L. The pH of the solution was 7.32.
- Executive summary:
EU Method A.6. – The water solubility of the test item was determined utilising a visual assessment approach (preliminary test). The procedure employed was designed to be compatible with Method A.6., Water Solubility, of Commission Regulation (EC) No 440/2008 of 30 May 2008.
An appropriate amount of the test item was given into a glass vessel and the amount of water was increased stepwise. After each addition of water, the mixture was vigorously shaken for at least 10 min and was visually checked for undissolved parts of the sample. As the solubility of the test item was low the time to dissolve was prolonged to at least 24 hours. The water solubility of the test item was determined twice.
The water solubility of the test item in ultra-pure water was determined to be between 10 and 22 mg/l at 21.1 °C and pH 7.32.
Reference
Table 1: Test results first determination (at 21.1 °C)
Weight Test Item [mg] |
Volume of ultra-pure water [mL] |
Shaking Duration [min] |
Remarks |
11 |
100 |
10 |
not dissolved, no light scattering |
200 |
10 |
not dissolved, no light scattering |
|
500 |
10 |
not dissolved, no light scattering |
|
1000 |
10 |
not dissolved, no light scattering |
|
1100 |
10 |
not dissolved, no light scattering |
|
1100 |
27 h |
dissolved completely, no light scattering, foaming, pH = 7.32, solubility ≥ 10 mg/L |
Table 2: Test results second determination (at 22.4 °C)
Weight Test Item [mg] |
Volume of ultra-pure water [mL] |
Shaking Duration [min] |
Remarks |
11 |
500 |
30 |
not dissolved, no light scattering |
500 |
60 |
not dissolved, no light scattering |
|
500 |
18 h |
not dissolved, no light scattering |
|
500 |
24 h |
not dissolved, no light scattering, solubility < 22 mg/L |
The second determination was performed to exclude that the test item can be dissolved at a concentration of 22 mg/L if shaking time is prolonged up to 24 hours. After 24 hours, a solubility check was conducted. The test item had not dissolved. In the opinion of expert judgement, the test item was not expected to dissolve with further agitation. The second determination was therefore stopped after 24 hours.
Solubility of Amines, C12-14-branched alkyl, dodecylbenzenesulfonates (1:1) in ultra-pure water at 21.1 °C is determined to be between 10 and 22 mg/L. The pH of the solution was 7.32.
Description of key information
Water Solubility: 10 - 22 mg/l at 21.1 °C and pH 7.32; EU Method A.6.; C Bär (2017)
Key value for chemical safety assessment
- Water solubility:
- 16 mg/L
- at the temperature of:
- 21.1 °C
Additional information
EU Method A.6. – The water solubility of the test item was determined utilising a visual assessment approach (preliminary test). The procedure employed was designed to be compatible with Method A.6., Water Solubility, of Commission Regulation (EC) No 440/2008 of 30 May 2008.
An appropriate amount of the test item was given into a glass vessel and the amount of water was increased stepwise. After each addition of water, the mixture was vigorously shaken for at least 10 min and was visually checked for undissolved parts of the sample. As the solubility of the test item was low the time to dissolve was prolonged to at least 24 hours. The water solubility of the test item was determined twice.
The water solubility of the test item in ultra-pure water was determined to be between 10 and 22 mg/l at 21.1 °C and pH 7.32.
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