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Diss Factsheets
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EC number: 231-781-8 | CAS number: 7727-21-1
- 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
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Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 2010-03-15 to 2010-03-19
- Reliability:
- 1 (reliable without restriction)
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- 92/69/EEC
- Deviations:
- no
- Principles of method if other than guideline:
- NA
- GLP compliance:
- not specified
- Type of method:
- flask method
- Water solubility:
- ca. 52.77 g/L
- Temp.:
- 20 °C
- pH:
- ca. 3.8
- Details on results:
- NA
- Conclusions:
- Interpretation of results (migrated information): very soluble (> 10000 mg/L)
The water solubility of dipotassium persulfate was determined at approximately 52.77 g/L at 20 °C using the shake-flask method for the performance of the main test. Thus, dipotassium persulfate was considered very soluble. - Executive summary:
The water solubility of dipotassium persulfate was determined at ca. 52.77 g/L at 20 °C . The results of the main test were as follows:
dipotassium persulfate (g/L, 20 °C) pH (20 °C) Test Nr. Vessel-1 Vessel-2 Vessel-3 Vessel-1 Vessel-2 Vessel-3 1 52.9 52.8 53.0 3.78 3.79 3.77 2 52.7 52.9 52.8 3.80 3.78 3.80 3 52.5 52.7 52.9 3.82 3.81 3.76 4 53.1 52.8 52.6 3.77 3.78 3.83 5 52.8 52.5 52.7 3.79 3.76 3.79 Average 52.8 52.7 52.8 3.79 3.81 3.80
Reference
Water solubility test results for dipotassium persulfate were as follows:
dipotassium persulfate (g/L, 20 °C) | pH (20 °C) | |||||
Test Nr. | Vessel-1 | Vessel-2 | Vessel-3 | Vessel-1 | Vessel-2 | Vessel-3 |
1 | 52.9 | 52.8 | 53.0 | 3.78 | 3.79 | 3.77 |
2 | 52.7 | 52.9 | 52.8 | 3.80 | 3.78 | 3.80 |
3 | 52.5 | 52.7 | 52.9 | 3.82 | 3.81 | 3.76 |
4 | 53.1 | 52.8 | 52.6 | 3.77 | 3.78 | 3.83 |
5 | 52.8 | 52.5 | 52.7 | 3.79 | 3.76 | 3.79 |
Average | 52.8 | 52.7 | 52.8 | 3.79 | 3.81 | 3.80 |
Description of key information
The water solubility of dipotassium peroxodisulfate was determined at approximately 52.77 g/L at 20 °C using the shake-flask method for the performance of the main test. Thus, it was considered very soluble. This value is supported by the information obtained from published data (ca. 60 g/L at 25 °C).
Key value for chemical safety assessment
- Water solubility:
- 52 770 mg/L
- at the temperature of:
- 20 °C
Additional information
Based on published data, the following results were obtained for water solubility of dipotassium persulfate: 60 g/L (25 °C) (OECD-SIDS Report, 2005). As dipotassium persulfate was revealed as an outlier – compared to the other substances of the persulfate category, for which the values for water solubility were in the same range – an additional experimental determination was performed for dipotassium persulfate: The test was performed according to EU method A.6 applying the shake-flask method. The water solubility of dipotassium persulfate was determined at ca. 52.77 g/L at 20 °C. Thus, it was considered very soluble. As the experimental result and the value obtained from published data (60 g/L) are comparable, the hypothesis of dipotassium persulfate being an outlier concerning was verified.
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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