Ammonium molybdate(VI)

Short-term toxicity to fish

Link to relevant study record(s)

Reference

Endpoint:

short-term toxicity to fish

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 handbook.

Qualifier:

according to guideline

Guideline:

other: as mnetioned below

Principles of method if other than guideline:

To study the toxicity effects of Ammonium molybdate , barb fish was exposed to the substance for 96 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): MoO4.2H4N
- Molecular weight (if other than submission substance): 196.0132 g/mol
- Smiles notation (if other than submission substance): [Mo](=O)(=O)([O-])[O-].[NH4+].[NH4+]
- InChl (if other than submission substance): 1S/Mo.2H3N.4O/h;2*1H3;;;;/q;;;;;2*-1/p+2
- Substance type: Inorganic
- Physical state: Solid

Analytical monitoring:

not specified

Vehicle:

not specified

Test organisms (species):

Barbus barbus

Details on test organisms:

TEST ORGANISM
- Common name: Barb

Test type:

not specified

Water media type:

freshwater

Limit test:

no

Total exposure duration:

96 h

Reference substance (positive control):

not specified

Key result

Duration:

96 h

Dose descriptor:

LC50

Effect conc.:

550 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Duration:

96 h

Dose descriptor:

LC100

Effect conc.:

650 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Validity criteria fulfilled:

not specified

Conclusions:

The LC 50 value for Ammonium molybdate(VI)) for Barbus barbus was found to be 550 mg/l.From the value it can be concluded that the Ammonium molybdate(VI) is not toxic to fish.

Executive summary:

Short term toxicity test was carried out on Barbus barbus for Ammonium molybdate(VI)).

Barbus barbus was exposed to Ammonium molybdate(VI) for 96 h, 50 % mortality was observed at 550 mg/l.

On the basis of LC50 value obtained it can be concluded that the Ammonium molybdate(VI) is likely to be not toxic to fish at environmentally relevant concentrations and can be considered to be " not classified" under CLP regulation.

Description of key information

Short term toxicity test was carried out on Barbus barbus for Ammonium molybdate(VI)).

Barbus barbus was exposed to Ammonium molybdate(VI) for 96 h, 50 % mortality was observed at 550 mg/l.

On the basis of LC50 value obtained it can be concluded that the Ammonium molybdate(VI) is likely to be not toxic to fish at environmentally relevant concentrations and can be considered to be " not classified" under CLP regulation.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish

Effect concentration:

550 mg/L

Additional information

Experimental study available for target from handbook The Dictionary of Substances and their Effects, volume 5,1999 for short term toxicity to fish endpoint of test chemical Ammonium molybdate(VI)( CAS No. 13106 -76 -8). Barbus barbus was exposed to Ammonium molybdate(VI) for 96 h, 50 % mortality was observed at 550 mg/l, it can be concluded that the Ammonium molybdate(VI) is not toxic to fish. .

Thus based on the available concentration which is 550 mg/L for target chemical which come to the conclusion that the test chemical

Ammonium molybdate(VI)( CAS No. 13106 -76 -8) was likely to be non toxic to fish as it does not exceed the classification citeria, it can be considered to be not classified as per the CLP regulation.