Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 241-143-0 | CAS number: 17084-13-8
- 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
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:
- 1955
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- The study from 1955 is designed like OECD105: solution of substance with temperature controll, analytical measurement of substance.
- Deviations:
- yes
- Remarks:
- The study from 1955 is designed like OECD105: solution of substance with temperature controll, analytical measurement of substance. As a relevant difference, no pH was measured.
- Type of method:
- flask method
- Specific details on test material used for the study:
- Potassium hexafluorophosphate was recrystallized three times from alkaline aqueous solutions by the method of Woyski.
Gravimetric analvsis of the recrystallized product indicated a content of 100 %. - Key result
- Water solubility:
- 8.35 other: weight percent
- Conc. based on:
- test mat.
- Remarks:
- pure potassium hexafluorophosphate
- Temp.:
- 25 °C
- pH:
- ca.
- Remarks on result:
- other: literature doesn't describe a measured pH; it is not expectec that the substance itself influences pH
- Water solubility:
- 7.3 other: weight percent
- Conc. based on:
- test mat.
- Remarks:
- pure potassium hexafluorophosphate
- Temp.:
- 20.2 °C
- Remarks on result:
- other: literature doesn't describe a measured pH; it is not expectec that the substance itself influences pH
- Conclusions:
- The water solubiity of potassium hexafluorophosphte at 25° C is 8.35 weight percent.
- Executive summary:
According to experimental published data (comparable to OECD105) the solubility of potassium hexafluorophosphte in water at 25° C is 8.35 weight percent.
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Justification for type of information:
- The publicated experimental study describes analytical determinaten of water solubility not in detail.
- Principles of method if other than guideline:
- No guideline available at testing date, experimental work comparable to guideline
- GLP compliance:
- no
- Type of method:
- flask method
- Specific details on test material used for the study:
- Crystalline solid.
Elemental analysis: calculated: K 21.23, P 16.86, F 61.91 measured: K 21.36,. P 16.78, F 61.66.
After synthesis recrystallised from boiling water. - Key result
- Water solubility:
- 0.432 other: mol/liter
- Conc. based on:
- test mat.
- Temp.:
- 22.5 °C
- pH:
- ca. 7
- Remarks on result:
- other: pH not measured but stated that the salt reacts pH-neutral
- Conclusions:
- The water solubility of the substance was determined to be 0.432 mol/l at 22.5°C. (= 79,5 g/l with 184.06 g/mol)
- Executive summary:
The water solubility of the substance was determined to be 0.432 mol/l at 22.5°C. (= 79,5 g/l with 184.06 g/mol)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Justification for type of information:
- The published experimental study describes analytical determination of water solubility not in detail.
- Principles of method if other than guideline:
- not described in detail
- GLP compliance:
- no
- Specific details on test material used for the study:
- Purity not specified.
- Key result
- Water solubility:
- 0.49 other: mol/l
- Conc. based on:
- test mat.
- Temp.:
- 25 °C
- Remarks on result:
- not measured/tested
- Conclusions:
- Water solubility of 0.49 mol/l at 25°C was determined (=90.2 g/l with 184.06 g/mol).
- Executive summary:
Water solubility of 0.49 mol/l at 25°C was determined (=90.2 g/l with 184.06 g/mol).
Referenceopen allclose all
Alkali salts of Phosphor hexafluorid react neutral in solution. Decomposition was not recognised during recrystallisation on platin vessels. Cold water solutions don't react with glas vessels during days.
No melting on heating up to 305°C;
Density d18/4: 2.591
Description of key information
According to the key study Sarmousakis and Low, 1955, the water solubility was determined to be 83.5 g/kg (25 °C) and 73 g/kg (20.2 °C)
In a weigth of evidence approach, water solubiliy was determined to be 79.5 g/L (22.5 °C) and 90.2 (25 °C).
Key value for chemical safety assessment
- Water solubility:
- 90.2 g/L
- at the temperature of:
- 25 °C
Additional information
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.