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Diss Factsheets
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EC number: 232-235-1 | CAS number: 7790-98-9
- 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_environmental-fate-and-pathways.png)
Monitoring data
Administrative data
- Endpoint:
- monitoring data
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2014
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Recoveries are not presented in the report
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 015
Materials and methods
- Principles of method if other than guideline:
- The current method is The U.S. Environmental Protection Agency (EPA) Method 314.2, which was specifically developed for the determination of perchlorate in high ionic strength samples using a two-dimensional (2D) IC system. This method is also described in Thermo Scientific™ Application Note (AN) 178.
- GLP compliance:
- no
- Type of measurement:
- concentration at contaminated site
- Media:
- other: sites' releases and surface water
Test material
- Reference substance name:
- Perchlorate
- IUPAC Name:
- Perchlorate
- Reference substance name:
- 14797-73-0
- Cas Number:
- 14797-73-0
- IUPAC Name:
- 14797-73-0
Constituent 1
Constituent 2
Study design
- Details on sampling:
- Perchlorate ion content is measured in sites’ releases (both at manufacture site and main industrial user site in continental Europe) and surface water at typical concentrations between µg/L and mg/L.
a) Manufacture site
• Releases sampling
There is no intended release from the process. Sampling has been performed monthly at two residual releases points as well as flow rate measurements for several years.
• Surface water (river) sampling
Sampling is performed on a monthly basis in the river after the mixing zone. There is no identified source of perchlorate before the site’s release.
The flow rate of the river is also monitored.
b) Main industrial user site in continental Europe
• Release sampling
Sampling is performed after on-site treatment of wastewater (the acclimated biological treatment is working continuously). Sampling is continuous and correlated with release’s flow rate, so that monitoring perchlorate concentration allows getting the daily emission flow.
Values for perchlorate concentration in release and daily emission flow have been available since March 2014.
• Surface water (river) sampling
Sampling is performed on a weekly basis in the river after the mixing zone. There is no identified source of perchlorate before the site’s release.
The flow rate of the river is also monitored.
Results and discussion
Any other information on results incl. tables
- Linearity: Correlation coefficient for calibration is superior to 99.98%
- Reproducibility: 11 samples from an aqueous solution with a targeted concentration of 1 µg/L gave a Relative Standard Deviation (RSD) < 5%.
- Specificity: Perchlorate is not detected in blank samples. Measured concentration in blank samples is below the limit of detection (0.3 ppb).
- Accuracy: On 10 standard reference samples analysed after a 10 analysis series, the result of analysis is obtained with a rate of (100.5 +/- 1.0) %.
- Limit of detection and limit of quantitation: Limit of detection (LOD) is estimated at 0.3 µg/L. If the measured value is below LOD, the result is considered to be 0 µg/L. Limit of quantification (LOQ) is estimated at 1 µg/L by statistics. If the measured value is below LOQ, the result is considered to be LOQ/2 = 0.5 µg/L.
Performance of the method:
Applicant's summary and conclusion
- Executive summary:
Monitoring was performed both at manufacture site and main industrial user site in continental Europe. Several parameters were monitored:
- Release flow rate
- River flow rate
- Concentration of Perchlorate ion in release
- Concentration of Perchlorate ion in the river
Concentrations of Perchlorate ion in water were measured by Ion chromatography according to (EPA)Method 314.2.
Manufacture site:
- Release flow rate, 90thpercentile : 7462 m3/day
- River flow rate, 10thpercentile : 4.13E+ 6 m3/day
- Quantity of Perchlorate ion released, 90thpercentile : 0.196 kg/day
- Concentration of Perchlorate ion in the river, 90thpercentile : 1.5 µg/L
Main industrial user site:
- Release flow rate, 90thpercentile : 142.5 m3/day
- River flow rate, 10thpercentile : 5.52E+ 5 m3/day
- Quantity of Perchlorate ion released, 90thpercentile : 0.029 kg/day
- Concentration of Perchlorate ion in the river, 90thpercentile : 27 µg/L
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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