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. [sodium and sodium compounds]
8. sodium compounds
9. sodium chloride
10. [sodium chloride by form]

Anotations

Scope note:

Form of sodium chloride, with small amounts of magnesium chloride, magnesium sulfate, and calcium sulfate, that is obtained from the evaporation of salt water; often comprising larger crystals than table salt.