Special Provision: A

Potassium

Piperidine

Phosphorus trisulfide, free from yellow or white phosphorus

Phosphorus tribromide

Phosphorus pentoxide

Phosphorus pentasulfide, free from yellow or white phosphorus

Phosphorus sesquisulfide, free from yellow or white phosphorus

Phosphorus pentabromide

Phosphorus pentachloride

Phosphorus, amorphous