Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. [sulphur and sulphur compounds]
8. sulfur compounds
9. sulfate

Additional parents:

1. top of the aat hierarchies
2. Materials Facet
3. Materials
4. materials
5. materials by form
6. materials by chemical form
7. compounds

Anotations

Scope note:

White crystalline salt found naturally as mineral alunogenite; made synthetically by treating bauxite with sulfuric acid. It is used as a dye mordant, in tanning, as a flocculant in water purification, and for sizing paper.