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Diss Factsheets
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EC number: 287-477-0 | CAS number: 85535-85-9
- 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
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Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Incubation of soil for 28 days with nominal concentrations of Cereclor S52 (52% chlorinated) at up to 400 mg/kg dry wt soil had no effect on the extent of transformation of soil nitrogen to nitrate. The NOEC is 400 mg/kg dry wt of soil in this test system.
Key value for chemical safety assessment
Additional information
In a GLP study conducted according to OECD guideline 216, the effect of Cereclor S52 (a C14-17 chlorinated paraffin; 52% chlorination) at 25, 50, 100, 200 and 400 mg/kg dry wt soil (nominal concentration) on the transformation by soil microorganisms of an organic nitrogen source (lucerne) to nitrate over a period of 28 days has been assessed. Nitrapyrin, a substance known to inhibit nitrogen transformation, was found to decrease nitrate formation by 35 and 29% when present at concentrations of 3.2 and 20 mg/kg dry wt of soil, respectively.
No statistically significant decrease in nitrate formation was seen at any concentration of Cereclor S52, indicating that the no-observed-effect concentration (NOEC) in this test is 400 mg/kg dry wt of soil. Based on the default soil characteristics used in the TGD, this NOEC is equivalent to 500 mg/kg dry wt, which when adjusted for a soil organic carbon content of 2%, is equivalent to 440 mg/kg wet wt (Thompson, 2002).
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.
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