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)

Anotations

Scope note:

Quaternary ammonium compounds are salts of quaternary ammonium cations with an anion. They are prepared by alkylation of tertiary amines. The compounds are used in softener formulations in the textile industry and in hair conditioner formulas. In conservation, they are used as wood preservatives, and as surfactant fungicides in treatment of textiles and paper.