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Diss Factsheets
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EC number: 701-237-9 | 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
Phototransformation in water
Administrative data
- Endpoint:
- phototransformation in water
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Properties of Hydroxyethane Diphosphonate affecting its Environmental Fate: Degradability, Sludge Adsorption, Mobility in Soils, and Bioconcentration
- Author:
- Steber, J. and Wierich, P.
- Year:
- 1 986
- Bibliographic source:
- Chemosphere 15:7 (1986), 929-945
Materials and methods
- Study type:
- other: direct photodegradation plus subsequent biotic degradation
- Principles of method if other than guideline:
- Test in small outdoor basins (volume ca. 3 cubic metres, depth 1 m) filled with water from a reservoir (Verse-dam). Exposure of 14C-HEDP solutions in closed 100 ml test flasks at various depths of water. 14CO2 formed was subsequently trapped in ethanolamine by flushing the flasks with nitrogen (4 h; 1 l/h). Thereafter, test solutions were inoculated and incubated in the dark ("post-incubation").
- GLP compliance:
- no
Test material
- Reference substance name:
- Disodium dihydrogen (1-hydroxyethylidene)bisphosphonate
- EC Number:
- 231-025-7
- EC Name:
- Disodium dihydrogen (1-hydroxyethylidene)bisphosphonate
- Cas Number:
- 7414-83-7
- Molecular formula:
- C2H8O7P2.2Na
- IUPAC Name:
- disodium dihydrogen (1-hydroxyethane-1,1-diyl)bis(phosphonate)
- Test material form:
- not specified
Constituent 1
Study design
- Radiolabelling:
- yes
- Light source:
- sunlight
Duration of test at given test condition
- Initial conc. measured:
- 0.1 mg/L
Results and discussion
% Degradationopen allclose all
- % Degr.:
- >= 27 - <= 40
- Sampling time:
- 11 d
- Test condition:
- Degradation during expsosure period following daylight exposure (June 1982) at depths between 10-100 cm in water (based on 14CO2 + 14C-biomass)
- % Degr.:
- >= 11 - <= 19
- Sampling time:
- 11 d
- Test condition:
- Degradation during expsosure period following daylight exposure (September 1982) at depths between 10-100 cm in water (based on 14CO2 + 14C-biomass)
Any other information on results incl. tables
Degradation extent (14CO2 + 14C-biomass) in % of initial
radioactivity after exposure (incl. 2-week post-incubation
in the dark) was dependant on water depth and test period:
% degradation
water depth [cm] June (11 d) Sept. (11 d)
---------------------------------------------------
10 40 19
50 32 11
100 27 12
Dark 15 10
Applicant's summary and conclusion
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.