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:

Colorless, noxious, highly flammable, poisonous gas, a combination of phosphorous and hydrogen. While it has been employed as a fast-acting, inexpensive fumigant which leaves no residue, health hazards associated with phosphine, as well as the compound's capacity to damage such materials as leather, feathers, and fur, have restricted its use.