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EC number: 236-031-3 | CAS number: 13106-76-8
- 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Data is from peer reviewed journal.
- Qualifier:
- according to guideline
- Guideline:
- other: as mentioned below
- Principles of method if other than guideline:
- To study the effects of molybdenum trioxide, toxicity to algae test was carried out for 72 hrs.
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Ammonium molybdate(VI)
- Molecular formula (if other than submission substance): MoO42H4N
- Molecular weight (if other than submission substance): 196.0132 grams/mole
- Smiles notation (if other than submission substance): 1S/Mo.2H3N.4O/h;2*1H3;;;;/q;;;;;2*-1/p+2
- InChl (if other than submission substance): APUPEJJSWDHEBO-UHFFFAOYSA-P
- Structural formula attached as image file (if other than submission substance): see Fig. No data available
- Substance type: Inorganic
- Physical state: Solid - Analytical monitoring:
- not required
- Vehicle:
- not specified
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
- Details on test organisms:
- TEST ORGANISM
- Strain: CIMM - Test type:
- not specified
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 72 h
- pH:
- 8.0–8.1
- Details on test conditions:
- mg Ca/L: 4.9
mg Mg/L: 2.9 - Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 25 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Conclusions:
- No observed effect concentrations (NOEC) for Scenedesmus subspicatus is 25mg/L when exposed to Ammonium molybdate(VI) for 72 hrs. Based on the value it can be concluded that the Ammonium molybdate(VI) is not toxic to algae and cayanobacteria
- Executive summary:
Toxicity to algae test was performed for Ammonium molybdate(VI) onScenedesmus subspicatus for 72 hrs, theNo observed effect concentrations (NOEC) obtained is 25mg/L.On the basis of No observed effect concentrations (NOEC) obtained 25mg/L it can be concluded that the Ammonium molybdate(VI) is not toxic to algae Scenedesmus subspicatus. Based on the value it can be concluded that the Ammonium molybdate(VI) is not toxic to algae and cayanobacteria and can be considered to be “not classified” under CLP regulation.
Reference
Description of key information
Toxicity to algae test was performed for Ammonium molybdate(VI) onScenedesmus subspicatus for 72 hrs, the No observed effect concentrations (NOEC) obtained is 25mg/L.On the basis of No observed effect concentrations (NOEC) obtained 25mg/L it can be concluded that the Ammonium molybdate(VI) is not toxic to algae Scenedesmus subspicatus.
Key value for chemical safety assessment
- EC10 or NOEC for freshwater algae:
- 25 mg/L
Additional information
Two studies from experimental data from peer reviewed Journal for toxicity to aquatic algae endpoint of test chemical Ammonium molybdate(VI) (CAS No. 13106-76-8) with relevant read across which is structurally similar were summarised as follows:
Experimentyal study available for target from peer reviewed Journal Science of the Total Environment 2010, suggests that the Toxicity to algae test was performed for Ammonium molybdate(VI) onScenedesmus subspicatus for 72 hrs, the No observed effect concentrations (NOEC) obtained is 25mg/L.On the basis of No observed effect concentrations (NOEC) obtained 25mg/L it can be concluded that the Ammonium molybdate(VI) is not toxic to algae Scenedesmus subspicatus. Based on the value it can be concluded that the Ammonium molybdate(VI) is not toxic to algae and cayanobacteria.
The above study is supported by experimental data of read across Molybdenum trioxide (CAS No. 1313-27-5) from peer reviewed JournalScience of the Total Environment 2010, indicates that toxicity to algae test was performed for molybdenum trioxide on Scenedesmus subspicatus for 72 hrs, the No observed effect concentrations (NOEC) obtained is > 100 mg/L.
On the basis of No observed effect concentrations (NOEC) obtained > 100 mg/L it can be concluded that the molybdenum trioxide is not toxic to algae Scenedesmus subspicatus.
Thus based on the effect concentrations which is in the range 25 mg/l to >100 mg/L give the conclusion that test substance Ammonium molybdate(VI) (CAS No. 13106-76-8)s likely to be non toxic was likely to be non toxic to aquatic algae at environmentally relevant concentrations and can be considered to be not classified as per the CLP classification criteria.
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