Phosgene 2 : Chemistry and Chemical Disasters. A colorless to light yellow liquid or easily liquefied gas (COCl2) with a hay-like odor that is noncombustible but highly toxic if inhaled
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}