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EC number: 701-215-9 | CAS number: -
- 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:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
- Principles of method if other than guideline:
No details are available on the guideline used to determine this result.- GLP compliance:
- not specified
- Type of method:
- other: No data
- Key result
- Water solubility:
- >= 520 other: g/kg
- Temp.:
- 25 °C
- Remarks on result:
- other: the source reports the solubility as "completely miscible"
- Conclusions:
- DTPMP-H was reported as miscible in water in secondary literature. The original reference was not available for review and no further information is available. The reliability of this result is not assignable.
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Principles of method if other than guideline:
- no data
- GLP compliance:
- not specified
- Type of method:
- other: No data
- Key result
- Water solubility:
- ca. 700 other: g/kg
- Remarks on result:
- other: Temperature and pH not stated
- Conclusions:
- DTPMP-H was reported as miscible in water in a handbook which has been subject to peer-review and in which the original data sources are traceable. The result is considered to be reliable.
Referenceopen allclose all
Phosphonate salts are highly water soluble and some are formulated as aqueous. Solutions containing up to 70 % active material. Free acids are less soluble than the salts; however, aqueous solutions in excess of l % active material can be prepared.
An infinite water solubility value was reported in the handbook which represents the water solubility is greater than >1 *10E+6 (the substance is miscible in water).
Description of key information
Water solubility [DTPMP (1-3Na)]: The substance is very soluble in water and has water solubility values of ≥500 g/L at ambient conditions based on weight of evidence
Key value for chemical safety assessment
- Water solubility:
- 500 g/L
- at the temperature of:
- 25 °C
Additional information
The substance DTPMP (1-3Na) (and its analogues) are known to be highly hydrophilic and extremely water-soluble. Although suppliers' literature is much less detailed than laboratory study reports, given the range of values expected for these types of substance, the uncertainty is not significant in respect of environmental exposure or human health exposure modelling. Typical concentrations of aqueous solutions in commercial supply provides weight of evidence of high loadings of approximately 50%.
DTPMP-H was reported as miscible in water in a handbook (Gledhill 1992) which has been subject to peer-review and in which the original data sources are traceable. The result is considered to be reliable. Many commercial solutions at approx.500 g/L are reported in company literature. The original references were not available for review and no further information is available. The reliability of those results is not assignable.
Phosphonate salts are highly water soluble and are supplied as aqueous solutions. Free acids are less soluble than the salts; however, aqueous solutions in excess of l% active material can be prepared. The aqueous solution of sodium and potassium salts are miscible in water. DTPMP-2Na is reported as miscible with water.
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