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EC number: 231-749-3 | CAS number: 7719-12-2
- 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
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.1 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Four aquatic toxicity studies have been conducted with phosphorus trichloride.
Fish were exposed to a control or a nominal phosphorus trichloride concentration of 1000 mg/L for a period of 96 hours, mortalities after 24, 48 and 72h were recorded. No mortalities were observed, therefore the 96 hour LC50was observed to be >1000 mg/L (based on the nominal exposure concentration). A 48 hour acuteDaphniatoxicity study (conducted according to OECD Guideline Method No 202) was conducted exposing phosphorus trichloride toDaphnia magna. The results of the study are based on nominal exposure concentrations and on test media without pH adjustment. The 24 and 48 hour EC50was 35.4 mg/L (geometric mean EC0/EC100). Under pH adjusted conditions no inhibition of growth has been observed at a nominal concentration of 100 mg/L. A 72 hour algal study (conducted according to EU Method C.3 (Algal Inhibition test)) was conducted exposing phosphorus trichloride toDesmodesmus subspicatus. The results of the study are based on nominal exposure concentrations and on test media without pH adjustment. The 72 hour EbC50was 30.24 mg/L (95% confidence limits of 29.99 to 30.49 mg/L), the 72 hour ErC50was 33.41 mg/L (95% confidence limits of 33.25 to 33.57 mg/L) and the overall NOEC was 12.5 mg/L. Under pH adjusted conditions, no inhibition of algal growth was observed at a nominal concentration of 100 mg/L. Five concentrations of phosphorus trichloride (1000, 1800, 3200, 5600 and 10000 mg/L) were assessed for their effect on activated sludge by measuring the respiration rate and % inhibition. The resulting EC50was calculated to be 9450 mg/L. In all studies, analytical determination of test substance concentration was not performed due to its rapid reaction with water and subsequent degradation. The results of the studies indicate that the aquatic toxicity of the substance is due to pH changes in the exposure medium due to the degradation products hydrochloric and phosphoric acid.
Conclusion on classification
Phosphorus trichloride is listed on Annex I of Directive 67/548/EEC with no classification for environmental effects. No change to this classification is proposed on the basis of the data evaluated.
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