A substance that is a significantly more hazardous form of the element and may be present as a contaminant in red phosphorus. This allotrope of phosphorus is extremely toxic and the estimated human lethal dose is 50 - 100 mg. This form must be stored under water as it burns rapidly and is spontaneously combustible upon exposure to air. [ https://www.baylor.edu/ehs/index.php?id=93802 ]
Term information
A substance that is a significantly more hazardous form of the element and may be present as a contaminant in red phosphorus. This allotrope of phosphorus is extremely toxic and the estimated human lethal dose is 50 - 100 mg. This form must be stored under water as it burns rapidly and is spontaneously combustible upon exposure to air.