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Diss Factsheets
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EC number: 254-414-3 | CAS number: 39322-78-6
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
Hydrolysis
Liquid chromatography with a mass spectrometer is used to determine the hydrolysis rate of the test substance.
With LC/MS a direct method is used to measure the amounts of Mono-and Diester, which will remain after incubation in case of hydrolysis. No decreases > 10% of Mono- and Diester have been detected at pH 7 and 9. At pH 4 the results are in the range of uncertainness of the measuring method; at pH 2 the expected hydrolysis takes place.
Therefore the hydrolysis rate is:
Hydrolysis rate: no hydrolysis observed at pH 7 and I
Hydrolysis approx. 10% at pH 4*
Hydrolysis observed > 10 % at pH 2
Half-life (25 °C) > 1year for pH 7 and 9
*Due to the relative high uncertainty of the analysis method, a clear statement "higher or lower" than 10% is not possible.
Biodegradation in water: Screening tests
One key study according to OECD Guideline 301 D the test item attained 63% degradation after 28 days. Regarding REACH the substance can be considered as readily biodegradable, because the test item is a multi constituent substance.
Two supporting studies with the read across substance Phosphoric acid, hexadecyl ester, potassium salt showed a degradation of 54% (OECD 301 F) and 37% (OECD 310). One supporting study with read across substance Phosphoric acid, octadecyl ester showed a degradation of 4-5% (OECD 301 F) and one supporting study with Phosphoric acid, octadecyl ester, potassium salt showed a degradation of 3% (OECD 301 E). The results of these studies demonstrate a reduction of the biodegradability with increasing of the chain length.
In two supporting studies according to OECD 302 B no biodegradation was found. Adsorption to sludge after 3 hours was > 20% respectively > 80%. In both studies the initial test substance concentration was above the water solubility.
Biodegradation in water and sediment: simulation tests
Waiving according to "column 2" in Annex VIII and IX of REGULATION (EC) No 1907/2006 (CSA does not indicate need for further investigations). The Substance is readily biodegradable.
Biodegradation in soil
Waiving according to "column 2" in Annex IX of REGULATION (EC) No 1907/2006 (CSA does not indicate need for further investigations). The Substance is readily biodegradable.
Bioaccumulation
Waiving according to "column 2" in Annex IX of REGULATION (EC) No 1907/2006. The study need not to be conducted because the substance has a low potential for bioaccumulation. The Log Kow is < 3.
Transport and distribution
Waiving according to "column 2" in Annex VIII and IX of REGULATION (EC) No 1907/2006. The study need not to be conducted because based on the physicochemical properties the substance can be expected to have a low potential for adsorption (Log Kow < 3). The Substance is readily biodegradable.
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.