phosphoric anhydride
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phosphoric anhydride — noun : phosphorus pentoxide * * * Chem. See phosphorus pentoxide. [1875 80] … Useful english dictionary
Phosphoric acid — This article is about orthophosphoric acid. For other acids commonly called phosphoric acid , see Phosphoric acids and phosphates. Phosphoric acid … Wikipedia
Phosphoric acids and phosphates — There are various kinds of phosphoric acids and phosphates. Of the many phosphorus oxoacids, the phosphoric acids constitute the largest and most diverse group. The simplest phosphoric acid series begins with monophosphoric (orthophosphoric) acid … Wikipedia
phosphoric acid — Orthophosphoric acid; a strong acid of industrial importance; m.p. 42.35°C; dilute solutions have been used as urinary acidifiers and as dressings to remove necrotic debris. In dentistry, it constitutes about 60% of the liquid used in zinc… … Medical dictionary
Phosphorus pentoxide — Phosphorus pentoxide … Wikipedia
phosphorus pentoxide — noun : a compound known in various polymeric forms (P2O5)x (as the dimer P4O10 in the vapor and one crystalline modification) that is obtained usually by burning phosphorus in an excess of dry air and occurs as a white powder that reacts… … Useful english dictionary
nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… … Universalium
phosphorus — /fos feuhr euhs/, n., pl. phosphori / feuh ruy /. 1. Chem. a solid, nonmetallic element existing in at least three allotropic forms, one that is yellow, poisonous, flammable, and luminous in the dark, one that is red, less poisonous, and less… … Universalium
Phosphorus — /fos feuhr euhs/, n. Phosphor. * * * Nonmetallic chemical element, chemical symbol P, atomic number 15. The ordinary allotrope, called white phosphorus, is a poisonous, colourless, semitransparent, soft, waxy solid that glows in the dark (see… … Universalium
Protactinium — thorium ← protactinium → uranium Pr ↑ Pa ↓ … Wikipedia
