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EC number: 237-574-9 | CAS number: 13845-36-8
- 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
Biodegradation in water and sediment: simulation tests
Administrative data
- Endpoint:
- biodegradation in water and sediment: simulation tests
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Enzymatic degradation and assimilation of condensed phosphates by green algae
- Author:
- Davis EM and Wilcomb MJ
- Year:
- 1 967
- Bibliographic source:
- Water research 1:335-350
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The hydrolysis rates of condensed phosphates in domestic sewage with blue-green algae were determined using static runs of one month's duration and flow through studies of 1.5 days duration.
- 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:
- Na5P3O10 H5-xP3O10Nax (where x is approximately 5) 6H2O.Na5P3O10
- IUPAC Name:
- Pentasodium triphosphate
- Details on test material:
- - Name of test material (as cited in study report): Sodium tripolyphosphate (STPP)
Tetrapotassium pyrophosphate
Sodium hexametaphosphate
Constituent 1
- Radiolabelling:
- no
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: Modified synthetic sewage medium
- Duration of test (contact time):
- 36 h
Results and discussion
Any other information on results incl. tables
Examination of the results of the enzymatic hydrolytic activity of Scenedesmus spp shows what appears to be hydrolytic activity on the part of S. obliquus over that of S. quadricauda but it should be noted that the growth of S. obliquus was nearly double that of S. quadricauda at 30 days.
For the amount of growth of Ulothrix fimbriata surprisingly little phosphorus was assimilated by the organism. The hydrolytic activity was greater than for any of the other species.
Analyses of condensed phosphates added to column, column contents at t=0, column contents at t=36h and expected values of contents
Algal sp |
P form added |
Stock analysis (mg/l P) |
column content at t=0 (mg/l P) |
column content at t=36h (mg/l P) |
Expected values (mg/l P) |
||||
|
|
ortho |
condensed |
ortho |
condensed |
ortho |
condensed |
ortho |
condensed |
Chlorella pyrenoidosa |
STPP |
0.0 |
6.20 |
1.70 |
2.02 |
0.59 |
2.42 |
0.05 |
6.09 |
TKPP |
0.08 |
4.75 |
1.95 |
0.63 |
1.67 |
0.97 |
0.13 |
4.64 |
|
SHMP |
0.41 |
5.79 |
2.22 |
1.70 |
1.15 |
1.75 |
0.46 |
5.68 |
|
C. vulgaris |
STPP |
0.05 |
4.90 |
3.00 |
0.01 |
0.78 |
2.22 |
0.13 |
4.77 |
TKPP |
0.39 |
4.31 |
1.53 |
1.08 |
1.63 |
2.86 |
0.42 |
4.22 |
|
SHMP |
0.13 |
5.87 |
0.85 |
0.98 |
0.46 |
1.50 |
0.15 |
5.74 |
|
Scenedesmus obliquus |
STPP |
0.13 |
2.87 |
2.61 |
3.74 |
1.51 |
1.36 |
0.20 |
2.89 |
TKPP |
0.13 |
3.00 |
3.13 |
0.13 |
2.45 |
0.60 |
0.21 |
2.92 |
|
SHMP |
0.00 |
4.17 |
3.00 |
0.00 |
1.37 |
1.76 |
0.08 |
4.06 |
|
S. quadricauda |
STPP |
0.03 |
6.56 |
1.70 |
1.04 |
0.78 |
1.90 |
0.08 |
9.41 |
TKPP |
0.13 |
4.35 |
2.48 |
0.26 |
1.24 |
1.63 |
0.19 |
4.24 |
|
SHMP |
0.06 |
3.73 |
1.37 |
0.00 |
1.37 |
1.50 |
0.09 |
3.63 |
|
Ulothrix fimbriata |
STPP |
0.13 |
3.59 |
5.49 |
0.19 |
2.22 |
0.83 |
0.27 |
3.50 |
TKPP |
0.08 |
4.79 |
2.12 |
1.29 |
1.87 |
1.67 |
0.13 |
4.70 |
|
SHMP |
0.13 |
6.07 |
3.85 |
1.73 |
1.39 |
1.48 |
0.23 |
5.95 |
|
Control |
STPP |
0.06 |
6.14 |
6.00 |
0.38 |
0.18 |
5.72 |
0.22 |
5.98 |
TKPP |
0.04 |
4.83 |
4.25 |
0.36 |
0.09 |
4.57 |
0.15 |
4.71 |
|
SHMP |
0.03 |
4.28 |
4.49 |
0.10 |
0.12 |
3.95 |
0.15 |
4.17 |
|
STPP |
0.02 |
5.04 |
4.20 |
0.09 |
0.11 |
4.80 |
0.13 |
4.91 |
|
TKPP |
0.03 |
4.83 |
4.52 |
0.10 |
0.05 |
4.49 |
0.11 |
4.65 |
|
SHMP |
0.03 |
5.11 |
4.55 |
0.39 |
0.09 |
4.61 |
0.14 |
4.83 |
Rate constants for total phosphorus used by algae in column during 36h (1.5day) runs
Algal sp |
P Form added |
k* |
% total P used** |
Chlorella pyrenoidosa |
STPP |
-0.450 |
50.9 |
TKPP |
-0.392 |
44.6 |
|
SHMP |
-0.421 |
46.8 |
|
C. vulgaris |
STPP |
-0.325 |
38.7 |
TKPP |
-0.006 |
1.0 |
|
SHMP |
-0.732 |
66.7 |
|
Scenedesmus obliquus |
STPP |
-0.004 |
7.0 |
TKPP |
-0.013 |
2.5 |
|
SHMP |
-0.185 |
26.3 |
|
S. quadricauda |
STPP |
-0.588 |
58.6 |
TKPP |
-0.288 |
35.2 |
|
SHMP |
-0.169 |
22.7 |
|
Ulothrix fimbriata |
STPP |
-0.13 |
19.1 |
TKPP |
-0.204 |
26.8 |
|
SHMP |
-0.509 |
53.6 |
* in N0/N = kt units/day
**% total phosphorus taken from stock medium in 36h
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.