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EC number: 268-859-6 | CAS number: 68152-93-2
- 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
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:
- Initiation: September 24, 2013 Completion May 20, 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Specific details on test material used for the study:
- The test item was dark, viscous liquid
- Key result
- Water solubility:
- 0.376 g/L
- Conc. based on:
- test mat.
- Incubation duration:
- 30 d
- Temp.:
- 20 °C
- pH:
- >= 5 - <= 6
- Conclusions:
- Tall oil, maleated had a water solubility of 0.376 g/L at 20.0 °C as determined by OECD Test No. 105.
- Executive summary:
The water solubility of tall oil, maleated was determined according to OECD Guideline 105.
A preliminary test was conducted in order to approximate the amount of test item that would dissolve in water and the time required to reach saturation. The preliminary test, conducted as described in OECD 105, indicated a water solubility of less than 1000 mg/L.
The flask method was used for determination of solubility. Samples were taken from three flasks at seven time points, corresponding to 47, 71, 144, 216, 384, 552 and 719 hours. The final four samples were taken 7 days apart as it was obvious from the initial samples that the concentration steadily increased over the first 3 weeks of incubation. The absorbance of the extracts was measured at 240 nm.
The difference between samples collected in the first 23 days was not less than 15%; therefore, additional samplings were necessary. Based on the average of the day 23 and 30 samples, which agreed within 4.5%, the water solubility of tall oil, maleated was determined to be 375.9 mg/L.
Conclusion: It was observed that the UV spectrum changed over time, with the appearance of an absorbance at about 280 nm (a shoulder on the main absorption at 240 nm). The change in UV spectrum may be due to chemical instability occurring after 3 weeks of incubation in water, but could also correspond with the formation of a more water soluble aggregate. Oxidation or polymerization are possible chemical conversions.
Tall oil, maleated had a water solubility of 0.376 g/L at 20.0 °C as determined by OECD Test No. 105.
Reference
Samples were taken from the three flasks at seven time points, corresponding to 47, 71, 144, 216, 384, 552 and 719 hours. The final four samples were taken 7 days apart as it was obvious from the initial samples that the concentration steadily increased over the first 3 weeks of incubation.
After about 400 hours of incubation, the solubility greatly increases, corresponding with an observed clouding of the solution, and the adoption of the characteristic blue hue of Tyndall scattering.
The agreement between replicate samples is generally good until the final stages of the test. As mentioned earlier, the samples took on a cloudy appearance in the last two time periods, displaying the characteristic blue hue of Tyndall scattering. This could be caused by the formation of an aggregate, like a micelle, in solution. The variability in the measurements of the three flasks at the final time point corresponds to the depth of their cloudiness. Thus, it can be concluded that the variability is not simply due to analytical variability but a true difference in the amount solubilized.
The difference between samples collected in the first 23 days was not less than 15%, therefore additional samplings were necessary. Based on the average of the day 23 and 30 samples, which agreed within 4.5%, the water solubility of tall oil, maleated was determined to be 375.9 mg/L.
It was observed that the UV spectrum changed over time, with the appearance of an absorbance at about 280 nm (a shoulder on the main absorption at 240 nm). The change in UV spectrum may be due to chemical instability occurring after 3 weeks of incubation in water, but could also correspond with the formation of a more water soluble aggregate. Oxidation or polymerization are possible chemical conversions.
Description of key information
Tall oil, maleated had a water solubility of 0.376 g/L at 20.0 °C as determined by OECD Test No. 105.
Key value for chemical safety assessment
- Water solubility:
- 0.376 g/L
- at the temperature of:
- 20 °C
Additional information
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