Noun
phosphorus pentoxide (uncountable)
(inorganic chemistry) the compound, P2O5, formed by the spontaneous combustion of white phosphorus in air; it reacts violently with water to form phosphoric acid and is used as a powerful desiccating agent
In addition, silicon dioxide alloyed with phosphorus pentoxide ("P-glass") can be used to smooth out uneven surfaces. Source: Internet
Diethyl sulfate and triethyl phosphate are prepared by treating ethanol with sulfur trioxide and phosphorus pentoxide respectively. Source: Internet
The odour of combustion of this form has a characteristic garlic smell, and samples are commonly coated with white " phosphorus pentoxide ", which consists of Pmain Omain tetrahedra with oxygen inserted between the phosphorus atoms and at their vertices. Source: Internet