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EC number: 231-838-7 | CAS number: 7758-29-4
- 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

Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The study is not conducted to GLP standards. However, the investigations within the study are well documented and scientifically acceptable.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 985
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- Washing programs in a washing machine were performed with two different types of washing powders: one containing only tripolyphosphates, the other containing as well zeolites. The washings were performed under three different conditions: without load, with a load that was not dirty and with a dirty load.
- GLP compliance:
- no
Test material
- Reference substance name:
- Pentasodium triphosphate
- EC Number:
- 231-838-7
- EC Name:
- Pentasodium triphosphate
- Cas Number:
- 7758-29-4
- Molecular formula:
- H5O10P3.5Na
- IUPAC Name:
- pentasodium bis(phosphonatooxy)phosphinate
- Details on test material:
- Phosphate species: orthophosphate, pyrophosphate and tripolyphosphate.
Constituent 1
Results and discussion
Any other information on results incl. tables
The studies mainly show that, coming out from the washing machine, 80% of phosphorous is recovered under a soluble form. 60% of the soluble phosphate form is tripolyphosphate (TPP). Thus, 20% of the TPP introduced in the washing machine is transformed or it precipitates during the washing operation. In the more diluted waters coming from the rinsing operation the percentage of soluble phosphorous is notably lower.
The calculation of the speed constant (at room temperature, pH=7 and using concentrations of the phosphate species ranging from 30 to 100 micro mole/l) gave the following values:
- for STPP: K = 2.4 10-2/day- for pyrophosphate: K = 3 10-3/day
This speed constant is 15 times weaker in a solution coming out of a washing machine, in which the concentration of TPP and the pH are higher. This value has to be carefully analysed as the concentration of the phosphate species is dependant on the precipitation of the species that happened during the analysis.
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.
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