Registration Dossier
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EC number: 266-936-9 | CAS number: 67701-12-6 This substance is identified by SDA Substance Name: C14-C18 and C16-C18 unsaturated alkyl carboxylic acid zinc salt and SDA Reporting Number: 04-006-09.
- 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
The solubility of Fatty acids, C14 -18 and C16-18 unsatd., zinc salts in water resulted in 214 µg/L dissolved zinc depending on:
- flask method
- loading of approx. 30 mg/L
- resulting pH of 5.7 – 6.0
Transformation / dissolution of of a structural analogue with a similar water solubility (i.e. Fatty acids, C16 -18, zinc salts: up to 180 µg Zn/L ) at pH 8 (the pH that maximises dissolution) resulted in the following dissolved zinc concentrations in modified ISO 6341 media:
Loading 1 mg/L: -after 7 days: 19 ug Zn/L
-after 28 days: 29 ug Zn/L
Loading 10mg/L: -after 7 days: 90 ug Zn/L
Loading 100mg/L: -after 7 days: 369 ug Zn/L
These transformation/dissolution data are considered representative of transformation/dissolution of Fatty acids, C14 -18 and C16-18 unsatd., zinc salts based on a simlar water solubility and zinc content (i.e. 10%).
Key value for chemical safety assessment
Additional information
The solubility of Fatty acids, C14-18 and C16-18-unsatd., zinc salts depends on several factors, including loading, solution matrix (pH, ionic strength, other salts) and exposure time.
Value used for CSA:214 µg/L dissolved zinc
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