Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by form]
6. [materials by chemical form]
7. compounds (materials)
8. nitrate

Anotations

Scope note:

A colorless crystalline compound of the composition HNO3 used in the production of explosives and fertilizers. As nitrate runoff from agricultural land it is a toxic pollutant which may cause eutrophication.