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EC number: 305-998-4 | CAS number: 95465-85-3
- 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

Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
- The substance fatty acids, C14-18 and C16-18-unsatd. is not classified as dangerous under the EU CLP regulation (EC 1272/2008) and is no PBT or vPvB substances.
- The substance fatty acid, C14-18 and C16-18-unsatd. has a low exposure potential to the environment since it can be considered as readily biodegradable under aerobic conditions (EPI Suite 4.0, BIOWIN v4.10) and has a low solubility in water (< 1 mg/L)
- The acute toxicity to fish is low and no toxicity is expected at the solubility limit (Onitsuka et al., 1989, Chemosphere 18: 1621-1631).
- Fatty acids are generally not considered to represent a risk to the environment, which is reflected in their exemption from the obligation to register under REACH according to REACH Annex V, section 9 (Regulation (EC) No 987/2008).
Read-across approach
There are no ecotoxicological data available for Fatty acids, C14-18 and C16-18-unsatd., barium salts and in the assessment of the ecotoxicity of fatty acids, C14-18 and C16-18-unsatd., barium salts, a read-across approach from data for barium is followed. This read-across strategy is based upon the assumption that i) upon release to the environment and dissolution in aqueous media, Fatty acids, C14-18 and C16-18-unsatd., barium salts will dissociate and only be present in its dissociated form, i.e. as barium cation and C14-18 and C16-18-unsatd. carboxylate anions and ii) toxicity is mainly caused by the liberated barium cations.
Upon dissolution in water, it is indeed predicted that metal carboxylates dissociate completely into the metal cation and the organic anion at environmentally relevant conditions. No information is available on the stability constants of Fatty acids, C14-18 and C16-18-unsatd., barium salts, but predictions of stability of other barium carboxylates (Ba propionate, Ba valerate and Ba isovalerate) in a standard ISO 6341 medium (2 mMCaCl2, 0.5 mM MgSO4, 0.77 mM NaHCO3 and 0.077 mM KCl, pH 6 and 8) clearly show that monodentate ligands such as carboxylic acids have no potential for complexing barium ions in solution (< 1% of total metal concentration complexed at 0.001 mM Ba; Visual minteq. Version 3.0, update of 18 October 2012. http://www2.lwr.kth.se/English/OurSoftware/vminteq/index.html).
The fate and behaviour (e.g. partitioning) in the environment for Ba2+ and C14-18 and C16-18-unsatd. carboxylate anions are predicted to be significantly different from each other, resulting in a different distribution over the environmental compartments (water, air, sediment and soil). Because the relative exposure to both constituent ions is hence predicted to be different from the original composition of Fatty acids, C14-18 and C16-18-unsatd., barium salts, data for the ecotoxicological properties of Fatty acids, C14-18 and C16-18-unsatd., barium salts tested as such are considered less relevant for effects and risk assessment and a read-across approach to separate data for both the barium cation and C14-18 and C16-18-unsatd. carboxylate anions is preferred.
The substance fatty acids, C14-18 and C16-18-unsatd. is however not considered in the effects assessment for its barium salts because:
For most metal-containing compounds, it is the potentially bioavailable metal ion that is liberated (in greater or lesser amounts) upon contact with water that is the moiety of ecotoxicological concern. The solubility of Fatty acids, C14-18 and C16-18-unsatd., barium salts (see IUCLID section 4.8 or chapter 1.3 of the CSR) is above the range of effects concentrations for dissolved barium in the aquatic environment (PNECfreshwater for Ba = 227.8 µg Ba/L) and therefore ecotoxicity data for soluble barium salts can be directly used in a read-across approach for Fatty acids, C14-18 and C16-18-unsatd., barium salts.
Conclusion on classification
The substance Fatty acids, C14 -18 and C16 -18 -unsatd., barium salts will dissociate into barium and C14-18 and C16-18-unsatd. carboxylate ions after dissolution in water and hence can be regarded as a mixture of both constituent ions. In the absence of toxicity data for Fatty acids, C14 -18 and C16 -18 -unsatd., barium salts itself, its classification for environmental hazards is based on the classification of its moieties (barium and fatty acids, C14-18 and C16-18-unsatd.). Both barium and fatty acids, C14-18 and C16-18-unsatd. are not classified as hazardous to the aquatic environment, and according to the summation method, it is therefore concluded that the substance Fatty acids, C14-18 and C16-18-unsatd., barium salts is not hazardous to the aquatic environment.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.

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