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EC number: 292-985-0 | CAS number: 91031-79-7
- 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:
- 2018-01-16 to 2018-02-23
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- 1995
- Deviations:
- yes
- Remarks:
- Two vessels will be set up in a parallel design, each vessel will be sampled several times instead of sampling one vessel at every point in time/ exclusion of O2 and CO2, under inert gas (argon)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- 2008
- Deviations:
- yes
- Remarks:
- Two vessels will be set up in a parallel design, each vessel will be sampled several times instead of sampling one vessel at every point in time/ exclusion of O2 and CO2, under inert gas (argon)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2016-05-31
- Type of method:
- flask method
- Specific details on test material used for the study:
- Storage conditions: Room temperature tightly closed
- Key result
- Water solubility:
- 158 mg/L
- Conc. based on:
- test mat. (dissolved fraction)
- Loading of aqueous phase:
- 350 mg/L
- Incubation duration:
- >= 36 - <= 37 d
- Temp.:
- 20 °C
- pH:
- >= 6.1 - <= 6.2
- Remarks on result:
- other: SD: ± 41.0 mg/L
- Remarks:
- based on a purity of 97 %
- Water solubility:
- 24.9 mg/L
- Conc. based on:
- element (dissolved fraction)
- Remarks:
- Cu
- Loading of aqueous phase:
- 350 other: mg test item /L
- Incubation duration:
- >= 36 - <= 37 d
- Temp.:
- 20 °C
- pH:
- >= 6.1 - <= 6.2
- Remarks on result:
- other: SD: ± 6.5 mg/L
- Details on results:
- - Mean temperature: was 19.9 ± 0.7 °C (necessary range 20.0 ± 1.0 °C)
- pH value of solutions containing the test item: from 5.8-6.1 (day 1) to 6.1-6.2 (day 37)
- pH value in method blanks: from 7.3–7.5 at (day 1) to 6.5–6.6 (day 37)
- turbidity in samples from test was always <1 NTU indicating that filtered solutions did not contain any undissolved material - Conclusions:
- Under the conditions of this test (under exclusion of CO2 and O2, under inert gas; flask method; loadings of 350.14 mg and 350.06 mg test substance/L in vessel 1 and 2, respectively), a solubility equilibrium was reached at day 36, 37 of testing. The mean measured amount of dissolved copper on day 36 and 37 at 20 ± 1 °C is 24.9 ± 6.5 mg/L (determined as dissolved copper, separated by filtration from undissolved test item). This corresponds to a water solubility of dissolved fatty acids, C9-13-neo, copper salts of 158 ± 41.0 mg/L, calculated on a copper content of 15.3 % and a test substance purity of 97 % (w/w). Solution pH in samples containing the test item remained at 6.1 – 6.2 while the pH in method blanks ranged from 6.5 – 7.5.
Reference
Recovery / validation data for copper
Element Cu |
Recovery [%] |
SD [%] |
n (total) |
n (valid) |
TMDA-70.2 nominal value Cu: 407 μg/L |
109 |
0.6 |
4 |
4 |
107 |
0.3 |
4 |
4 |
|
TMDA-70.2 (dilution factor 2) |
102 |
0.8 |
4 |
4 |
102 |
1.1 |
3 |
3 |
|
104 |
1.7 |
3 |
3 |
|
Quality control standard (Roth) 7.5 μg/L |
103 |
5.3 |
4 |
4 |
102 |
6.6 |
5 |
4 |
|
Quality control standard (Roth) 75 μg/L |
104 |
1.5 |
4 |
4 |
104 |
0.4 |
5 |
4 |
|
105 |
1.7 |
4 |
4 |
|
104 |
0.3 |
3 |
3 |
|
106 |
0.9 |
3 |
3 |
|
Quality control standard (Roth) 750 μg/L |
105 |
0.8 |
4 |
4 |
103 |
0.6 |
4 |
4 |
|
105 |
1.3 |
4 |
4 |
|
104 |
0.5 |
3 |
3 |
|
104 |
0.5 |
3 |
3 |
|
Recalibration standard 100 μg/L |
97.5 |
1.5 |
4 |
4 |
99.3 |
1.1 |
4 |
4 |
|
Recalibration standard 400 μg/L |
101 |
1.1 |
4 |
4 |
99.7 |
0.2 |
3 |
3 |
|
101 |
0.6 |
3 |
3 |
Fortification of test samples with copper
Sample |
element |
measured concentration [μg/L] |
calculated level after addition [μg/L] |
recovery [μg/L] / [%] |
Vessel 1 sample a 1d 1 mL sample + 4 mL 100 μg/L standard |
Cu |
64.5 |
92.9 |
90.7 / 97.7 |
Vessel 1 sample a 13d 1 mL sample + 4 mL 250 μg/L standard |
Cu |
479 |
296 |
297 / 100 |
Vessel 2 sample a 28d 1 mL sample + 4 mL 75 μg/L standard |
Cu |
381 |
136 |
137 / 101 |
Vessel 2 sample a 37d 1 mL sample + 4 mL 75 μg/L standard |
Cu |
419 |
144 |
142 / 98.8 |
Mean copper concentrations of vessel 1 and 2 over the whole sampling time.
Sampling [d] | sample | LOD [μg/L] |
LOQ [μg/L] |
Cu conc. per vessel ± SD [mg/L] | mean Cu conc. all vessels ± SD [mg/L] |
Variation / change between samplings [%] |
1 | Vessel 1 | 1.17 | 3.52 | 3.20 ± 0.03 | 2.49 ± 1.01 | - |
Vessel 2 | 1.17 | 3.52 | 1.78 ± 0.03 | |||
2 | Vessel 1 | 1.17 | 3.52 | 5.46 ± 0.05 | 4.15 ± 1.85 | 66.7 |
Vessel 2 | 1.17 | 3.52 | 2.85 ± 0.11 | |||
3 | Vessel 1 | 1.17 | 3.52 | 7.79 ± 0.10 | 5.79 ± 2.83 | 39.6 |
Vessel 2 | 1.17 | 3.52 | 3.79 ± 0.12 | |||
13 | Vessel 1 | 4.14 | 12.4 | 23.2 ± 1.01 | 15.7 ± 10.7 | 171 |
Vessel 2 | 4.14 | 12.4 | 8.15 ± 0.16 | |||
14 | Vessel 1 | 4.14 | 12.4 | 24.6 ± 0.09 | 16.8 ± 11.1 | 6.75 |
Vessel 2 | 4.14 | 12.4 | 8.93 ± <0.01 | |||
28 | Vessel 1 | 0.924 | 2.77 | 28.4 ± 0.10 | 23.7 ± 6.76 | 41.2 |
Vessel 2 | 0.924 | 2.77 | 18.9 ± 0.26 | |||
29 | Vessel 1 | 0.924 | 2.77 | 28.9 ± 0.32 | 24.3 ± 6.52 | 2.58 |
Vessel 2 | 0.924 | 2.77 | 19.7 ± 0.11 | |||
36 | Vessel 1 | 1.61 | 4.82 | 29.2 ± 0.19 | 24.4 ± 6.74 | 0.49 |
Vessel 2 | 1.61 | 4.82 | 19.6 ± 0.07 | |||
37 | Vessel 1 | 1.61 | 4.82 | 29.8 ± 0.09 | 25.4 ± 6.19 | 4.13 |
Vessel 2 | 1.61 | 4.82 | 21.0 ± 0.11 |
The determination of the water solubility of fatty acids, C9-13-neo, copper salts is based on mean copper concentrations of the two last sampling days (36, 37 d) and a mean copper amount of 15.3% in the test item. The amount of dissolved Fatty acids, C9-13-neo, copper salts was calculated, with a test item purity of ≥90 %; ≥ 97 % (boundary composition of the registered substance) and 100 % (w/w) as follows:
Mean copper concentrations
Vessel 1: 29.5 ± 0.38 mg Cu/L
Vessel 2: 20.3 ± 0.81 mg Cu/L
Mean: 24.9 ± 6.5 mg Cu/L
If based on a test item purity of ≥ 90 % the water solubility of fatty acids, C9-13-neo, copper salts is Mean of concentration x 90 % / 15.3 %:
Vessel 1: 173 ± 2.2 mg/L
Vessel 2: 120 ± 4.7 mg/L
Mean: 146 ± 38.0 mg/L
If based on a test item purity of ≥ 97 % the water solubility of fatty acids, C9-13-neo, copper salts is Mean of concentration x 97 % / 15.3 %:
Vessel 1: 187 ± 2.4 mg/L
Vessel 2: 129 ± 5.1 mg/L
Mean: 158 ± 41.0 mg/L
If based on a test item purity of 100% the water solubility of fatty acids, C9-13-neo, copper salts is Mean of concentration x 100 % / 15.3 %:
Vessel 1: 193 ± 2.5 mg/L
Vessel 2: 133 ± 5.3 mg/L
Mean: 163 ± 42.3 mg/L
Description of key information
Fatty acids, C9-13-neo, copper salts has a water solubility of 158 ± 41.0 mg/L, calculated on a copper content of 15.3 % and a test substance purity of 97 % (w/w) at
20 ± 1 °
Key value for chemical safety assessment
- Water solubility:
- 158 mg/L
- at the temperature of:
- 20 °C
Additional information
Under the conditions of this test (under exclusion of CO2 and O2, under inert gas; flask method; loadings of 350.14 mg and 350.06 mg test substance/L in vessel 1 and 2, respectively), a solubility equilibrium was reached at day 36, 37 of testing. The mean measured amount of dissolved copper on day 36 and 37 at 20 ± 1 °C is 24.9 ± 6.5 mg/L (determined as dissolved copper, separated by filtration from undissolved test item). This corresponds to a water solubility of dissolved fatty acids, C9-13-neo, copper salts of 158 ± 41.0 mg/L, calculated on a copper content of 15.3 % and a test substance purity of 97 % (w/w). Solution pH in samples containing the test item remained at 6.1 – 6.2 while the pH in method blanks ranged from 6.5 – 7.5.
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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