Chemistry and Chemical Disasters. A wax-like translucent solid form of the element phosphorus which ignites spontaneously in air at 86ºF and is highly toxic by ingestion and inhalation. See: Yellow Phosphorus; See also: Phosphorus
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}