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EC number: 215-158-8 | CAS number: 1308-14-1
- 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
Toxicity to soil microorganisms
Administrative data
- Endpoint:
- toxicity to soil microorganisms
- Type of information:
- other: experimental result from peer-reviewed assessment report
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- Information from a peer reviewed Assessment Report. Chromium(III) hydroxide is insoluble between pH 6.8 and 11 (see section 4.8). Under conditions < pH 6.8 hydrolysis takes place and at > pH11.5 hydroxocomplexes are formed. The main toxic principle of these solutions < pH6.8 and > pH11.5 is dissolved Cr(III). Therefore Chromium(III) choride is used as supporting substance.
Data source
Reference
- Reference Type:
- other: Peer reviewed assessment report
- Title:
- Unnamed
- Year:
- 2 005
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Principles of method if other than guideline:
- data from peer-reviewed assessment report
Test material
- Reference substance name:
- Chromium trichloride
- EC Number:
- 233-038-3
- EC Name:
- Chromium trichloride
- Cas Number:
- 10025-73-7
- Reference substance name:
- Chromium(III) chloride
- IUPAC Name:
- Chromium(III) chloride
Constituent 1
Constituent 2
Results and discussion
Effect concentrations
- Remarks on result:
- other: See: Any other information on results incl. tables, data compitation from peer-reviewed EU Assesssment Report
Any other information on results incl. tables
Citation from EU RAR (2009): "Data on the toxicity of chromium (III) to soil processes have been taken from the review by Crommentuijn et al (1997). The values used in this risk assessment were selected from those presented in Table 4.4 of Appendix IV in the Crommentuijn review, applying the following criteria. Values for the NOEC or EC10 which were reported directly were used as NOEC values. Where an EC value for an effect between 10 and 20% was reported, a NOEC of half the EC value was taken. Effect levels greater than 20% were not used. Where results from different exposure periods were reported for the same study, the result from the longest available exposure matching the above criteria was taken. In one case, a NOEC and an EC10 value were presented for the same study and duration; in this case the geometric mean of the two values was used. The basic data are presented in Table VII.1. This includes the original values where the effect was between 10% and 20% (ie before division by two), and the values for different durations.
The selected values were used to determine a PNEC value for soil processes using the statistical extrapolation method. The log NOEC values were fitted to a normal distribution. The Kolmogorov-Smirnov test did not reject the hypothesis, that the log NOEC values came from a normal distribution. A plot of the observed and expected cumulative frequencies is included as Figure VII.1. The result of the statistical extrapolation calculation is a HC5-50% value of 5.9 mg/kg. For comparison, the HC5-95% value is 2.1 mg/kg.The data cover a range of processes: arylsulphatase, nitrification, N-mineralisation, phosphatase, respiration and urease. ..."
Some results were from Chromium(III)sulphate, but they are well in line with the effect concentrations of Chromium(III) chloride.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The results for soil processes using the statistical extrapolation method for the HC5-95% value and HC5-95% value is 5.9 mg/kg the is 2.1 mg/kg chromium(III) chloride. Some results were from Chromium(III)sulphate, but they are well in line with the effect concentrations of Chromium(III) chloride.
- Executive summary:
Data on the toxicity of chromium (III), mostly Chromium(III) chloride, to soil processes (arylsulphatase, nitrification, N-mineralisation, phosphatase, respiration and urease) have been taken from the review by Crommentuijn et al (1997). The reported values for the NOEC or EC10 which were reported directly were used as NOEC values. For reported EC values for an effect between 10 and 20%, a NOEC of half the EC value was taken. Effect levels greater than 20% were not used. Where results from different exposure periods were reported for the same study, the result from the longest available exposure matching the above criteria was taken. In one case, a NOEC and an EC10 value were presented for the same study and duration; in this case the geometric mean of the two values was used.
Results:
HC5-50% = 5.9 mg/kg
HC5-95% = 2.1 mg/kg
Some results were from Chromium(III)sulphate, but they are well in line with the effect concentrations of Chromium(III) chloride.
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