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EC number: 274-778-7 | CAS number: 70693-62-8
- 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
The abiotic decomposition in water is fast ultimately forming KHSO4 and H2O2, with the latter being “ready biodegradable”. None of these decomposition products are considered critical with regard to persistence or toxicity. H2O2 is degraded to H2O + O2; KHSO4 is further degraded to form HSO4-/SO42-, ubiquitously present in surface waters and sediments. As H2O2 is not absorpt to sediment and KHSO4 is no risk to the sediment, sediment nor surface water are considered at risk.
Additional information
The environmental fate properties of KMPS triple salt were investigated in hydrolysis studies according to OECD Guideline 111 and a study with synthetic pool water, a degradation in soil study, decomposition studies in activated sludge from sewage treatment plants (STP), an adsorption/desorption study and the calculation of Henry’s law constant. The hydrolysis of KMPS triple salt was investigated in one key study and two supporting studies. The degradation of KMPS triple salt in aqueous solutions is pH and temperature dependent. Degradation is accelerated with increasing temperature and increasing pH. The soil degradation study with KMPS triple salt showed that it decomposes rapidly upon contact with soil. The half-life (DT50) value of KMPS triple salt in soil was conservatively calculated at < 11 minutes. After one hour exposure no measurable KMPS triple salt was present in soil samples. A study using synthetic pool water demonstrated that the decomposition of KMPS triple salt in water is dependent on the presence of oxidisable compounds. The addition of a ‘body fluid analogue’ to the synthetic pool water used in this laboratory test reduced the half-life decomposition of KMPS triple salt from ca. 120 hours (synthetic pool water without ‘body fluid analogue’) to ca. 3 hours. The decomposition studies in activated sludge demonstrated that KMPS triple salt will degrade rapidly if released to a STP. From the results of the available three studies, a geometric mean of 5.12 min at 12 °C was calculated as half-life in activated sludge. For details, please refer to IUCLID 6, section 5.2.2. An adsorption/desorption study following OECD Guideline 121 study was performed to determine the soil adsorption coefficient (Koc) of KMPS triple salt, resulting in a log Koc < 1.25. The calculated log Koc was -3,385 (calculated based on the measured log Pow value). The calculated Henry’s law constant was 2.87E-07 Pa x m³ x mol-1and shows that KMPS triple salt is not volatile.
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