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Diss Factsheets
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EC number: 219-518-5 | CAS number: 2452-01-9
- 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)
Description of key information
Based on measured maximum zinc concentrations ranging from 738 to 922 µg/L, the water solubility of zinc dilaurate ranges from 5.2 to 6.4 mg/L depending on test conditions.
Key value for chemical safety assessment
Additional information
The solubility of zinc dilaurate depends on several factors, including loading and solution matrix (pH, ionic strength, other salts).
In water, solubility ranges from 5.2 to 6.4 mg/L depending on test conditions. However, these calculations assume a 1:1 dissolution of zinc as well as a zinc content of 14.1% and 14.3%, respectively. However, since laurate concentrations have not been experimentally confirmed, it may be more appropriate to express the solubility of zinc dilaurate in measured dissolved zinc concentrations (738 - 922 µg/L Zn).
Rüdel (2010)- ISO 6341 media at a loading of 100mg/L:
In more complex media simulating environmental solutions, solubility resulted in 105.8 µg/L to1194 µg/L dissolved zinc depending on test conditions, specifically solution pH. The following dissolved zinc concentrations have been measured in a transformation dissolution study (guideline conform and under GLP) for 1 day with a loading of 100 mg/L):
pH 8.5: 105.8 ± 2.0 µg/L Zn
pH 8.0: 1194 ± 1.2 µg/L Zn
pH 7.5: 972.3 ± 13 µg/L Zn
pH 7.0: 974.7 ± 4.5 µg/L Zn
pH 6.5: 918.8 ± 7.5 µg/L Zn
pH 6.0: 949.2 ± 12 µg/L Zn
pH 5.5: 987.2 ± 17 µg/L Zn
pH 5.5: 968.8 ± 18 µg/L Zn
The maximum solubility of the test item in the screening / pH-optimization test at a loading of 100 mg/L resulted in a zinc concentration of 1194 ± 1.2 μg/L at a pH of 8.0 ± 0.2. Thus, the subsequent full transformation / dissolution test was performed with a loading of 100 mg/L and sampling after 2h, 6h and 24h at pH 8.0. After 24 h, the total dissolved zinc concentrations did not vary by more than 15%. Therefore, according to the OECD guidance 29, the test was terminated. After 24 h dissolved zinc was 976 ± 37 µg/L.
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