Registration Dossier

Administrative data

Link to relevant study record(s)

Description of key information

Read-across from analogue substance MoO3.  See justification for non-classification.

Key value for chemical safety assessment

Oxidising properties:

Additional information

Justification for classification or non-classification

Read-across from pure MoO3 to ammonium octamolybdate.

In a test for oxidising properties with pure molybdenum oxide (MoO3), both mixtures of the test item MoO3 with cellulose (4:1 and 1:1) had higher mean burning times compared to the reference mixture in the ratio 3:7. It is concluded that the test item pure MoO3 has no oxidizing properties

Read-across is possible from pure MoO3to ammonium octamolybdate, since ammonium octamolybdate also contains molybdenum in oxidation state (VI). Also, ammonium octamolybdate (anhydrous) contains a similar mass fraction of oxygen (33.1%)to molybdenum trioxide (33.3%). In both compounds, the molybdenum atom is coordinated by oxide. In consequence it is reasonable that, sufficient for non-classification, ammonium octamolybdate, like the comparable compound MoO3would not exhibit oxidising properties.