Phosphorus oxidative

White Phosphorus Oxidation. Emission of green light from the oxidation of elemental white phosphoms in moist air is one of the oldest recorded examples of chemiluminescence. Although the chemiluminescence is normally observed from sotid phosphoms, the reaction actually occurs primarily just above the surface with gas-phase phosphoms vapor. The reaction mechanism is not known, but careful spectral analyses of the reaction with water and deuterium oxide vapors indicate that the primary emitting species in the visible spectmm are excited states of (PO)2 and HPO or DPO. Ultraviolet emission from excited PO is also detected (196). [Pg.271]

About 80-90% of the elemental P produced is reoxidized to (pure) phosphoric acid (p. 521). The rest is used to make phosphorus oxides (p. 503). sulfides (p. 506), phosphorus chlorides and oxochloride (p. 4%). and organic P compounds. A small amount is convened to red phos rftorus (see below) for use in the striking surface of matches for pyrotechnics and as a flame retarding agent (in polyamides). Bulk price for P4 is S2.00/kg. [Pg.480]

Phosphorus oxides, sulfides, selenides and related compounds... [Pg.503]

H.21 Phosphorus and oxygen react to form two different phosphorus oxides. The mass percentage of phosphorus in one of these oxides is 43.64% in the other, it is 56.34%. [Pg.90]

This reaction is an example of a hydrolysis reaction, a reaction with water in which new element-oxygen bonds are formed. Another example is the reaction ot PC15 (phosphorus oxidation state +5) with water to produce phosphoric acid, H3P04 (also phosphorus oxidation state - -5) ... [Pg.748]

The structures of the phosphorus oxides are based on the tetrahedral P04 unit, which is similar to the structural unit in the oxides of its neighbor silicon (see Section 14.19). White phosphorus burns in a limited supply of air to form phos-phorus(III) oxide, P406 (2) ... [Pg.750]

Spectroscopic, and Theoretical Studies on MoleculEu- Phosphorus Oxides and Oxide Sulfides J. Clade, F. Frick, and M. Jansen... [Pg.512]

If heated with sodium oxide or at ambient temperature when water traces are present, phosphorus oxide reacts very violently. [Pg.179]

Considering the phosphorus oxidation reaction given earlier, and applying the Van t Hoff isotherm for nonequilibrium conditions,... [Pg.432]

Long SR, Christesen SD. 1989. Laser ionization studies of organophosphonates and phosphorus oxide radicals. Journal of Physical Chemistry 93(18) 6625-6628. [Pg.151]

The affinity of [Au(CN)2] for primary, secondary, and tertiary amines is very low at pH values typical for cyanide feed solutions, but in 1983 Mooiman et al. showed that the addition of solvating phosphorus(V) oxides enhanced extraction at higher pH.335,336 During the course of this work it was discovered that TBP and DBBP (see Table 6) could themselves extract gold.337 This led to subsequent investigations on phosphates and phosphorus oxides.333... [Pg.791]

Ethyl acetate (500 mL) is purified by washing with 100 mL of 5% sodium carbonate solution, followed by 100 mL of saturated sodium chloride solution, drying over potassium carbonate and filtering. It is then heated at reflux over phosphorus oxide P2O5) for 3-12 hr and distilled from P2O5.3... [Pg.120]

Chloroform was purchased from Fisher Scientific Company and distilled from phosphorus oxide (P2O5) immediately before use and added to the reaction mixture via syringe. [Pg.251]