Phosphorus diphosphorus

Products Manufactures from Phosphorus Diphosphorus(V) oxide... 

Preparation of Phosphorus-Diphosphorus Tetraiodide. Twenty-five grams of white phosphorus is cut into small pieces (Caution. Cut under water ) each of which is dried individually with absorbent paper and quickly placed in a 300-ml. flask (not the 1000-ml. flask in Fig. 15) from,which the air has been displaced by carbon dioxide. During this operation, and subsequently until the phosphorus is entirely dry, carbon dioxide is passed through the flask. Then 25 to 30 ml. of carbon disulfide is added through a funnel and the mixture shaken tmtil the phosphorus has dissolved. 

Examples P2O5, diphosphorus pentaoxide or phosphorus)V) oxide Hgj, mercury(I) ion or dimercury(2-l-) ion K2[Fe(CN)g], potassium hexacyanoferrate(II) or potassium hexacyanofer-rate(4—) PbJPb 04, dilead(II) lead(IV) oxide or trilead tetraoxide. 

Phosphorus pentachloride Aluminum, chlorine, chlorine dioxide, chlorine trioxide, fluorine, magnesium oxide, nitrobenzene, diphosphorus trioxide, potassium, sodium, urea, water... 

Diphosphorus tetrahalides and other tower halides of phosphorus... 

Phosphorus Pentoxide (Phosphoric anhydride, Phosphoric oxide, Diphosphorus pentoxide). 

Bertrand G, Bourissou D (2002) Diphosphorus-Containing Unsaturated Three-Menbered Rings Comparison of Carbon, Nitrogen, and Phosphorus Chemistry. 220 1 -25 Betzemeier B, Knochel P (1999) Perfluorinated Solvents - a Novel Reaction Medium in Organic Chemistry. 206 61 - 78... 

Diphosphorus Containing Unsaturated Three-Membered Rings Comparison of Carbon, Nitrogen and Phosphorus Chemistry... 

The white phosphorus/sulphur mixture either combusts or detonates when it is heated. It forms diphosphorus pentasulphide. Red phosphorus reacts with more difficulty there is a need for an ignition flame and as a result of which the mixture combusts violently. This reaction is thought to lead to tetraphosphorus trisulphide. 

Behrens C, Cichon MK, Grolle F, Hennecke U, Carell T (2004) Excess Electron Transfer in Defined Donor-Nucleobase and Donor-DNA-Acceptor Systems. 236 187-204 Bertrand G, Bourissou D (2002) Diphosphorus-Containing Unsaturated Three-Menbered Rings Comparison of Carbon, Nitrogen, and Phosphorus Chemistry. 220 1-25 Betzemeier B, Knochel P (1999) Perfluorinated Solvents - a Novel Reaction Medium in Organic Chemistry. 206 61-78 Bibette J, see Schmitt V (2003) 227 195-215 Blais J-C, see Astruc D (2000) 210 229-259 Bogar F, see Pipek J (1999) 203 43-61 Bohme DK, see Petrie S (2003) 225 35-73 Bourissou D, see Bertrand G (2002) 220 1-25 Bowers MT, see Wyttenbach T (2003) 225 201-226 Brand SC, see Haley MM (1999) 201 81-129... 

Phosphorus lies to the left and below oxygen in the periodic table, so it is named first. According to the rules, the name is phosphorus pentoxide, and professional chemists call this compound phosphorus pentoxide. (Some texts for beginning students call the compound diphosphorus pentoxide, to aid students in writing the formula from the name.)... 

Both yellow and red phosphorus ignite on contact with fluorine and chlorine red ignites in liquid bromine or in a heptane solution of chlorine at 0°C. Yellow phosphorus explodes in liquid bromine or chlorine, and ignites in contact with bromine vapour or solid iodine [1]. Interaction of bromine and white phosphorus in carbon disulfide gives a slimy by-product which explodes violently on heating [2], Interaction of phosphorus and iodine in carbon disulfide is rather rapid [3], A less hazardous preparation of diphosphorus tetraiodide from phosphorus trichloride and potassium iodide in ether is recommended [4],... 

The reaction between dry phosphine and hydrogen iodide, first described in 1817 by J. J.Houtonde la Billardiere produces phosphonium iodide. The simplest laboratory preparation of this compound is by the hydrolysis of an intimate mixture of diphosphorus tetraiodide and white phosphorus According to X-ray diffraction investigations, phosphonium iodide crystallises in a caesium chloride type lattice 3m,32s). 326) hydrogen atoms... 

Also, the compound can be prepared by hydrolysis of a mixture of diphosphorus tetraiodide and white phosphorus ... 

EPOXIDES Diphosphorus tetraiodide. Lithium. 3-Methyl-2-selenoxo-l,3-benzothiazole. Phosphorus triiodide. Lithium. Potassium iodide-Zinc-Phos-phorus(V) oxide. Samarium(II) iodide. Sodium O.O-diethyl phosphorotelluro-ate. Triphenylphosphine hydroiodide-Triplienylphosphine diiodide. 

The mixture10 of diphosphorus tetraiodide and white phosphorus is introduced into flask A of the apparatus, which has been previously swept with carbon dioxide. This flask is constructed so as to fit a Glas Col spherical heating mantle which enables even heating. The connections between flask A and the condenser and between the condenser and flask B are wrapped in electrical heating tape which is connected to a variable source of power. 

Phosphorus, mixture of, with diphosphorus tetraiodide, 2 143 Phosphorus (III) bromide, 2 147 Phosphorus(III) chloride, 2 145 Phosphorus (V) chloride, 1 99 Phosphorus (III) S-chloroethoxydi-chloride, 4 66... 

To indicate that a binary compound is made up of two non-metals, a prefix is usually added to both non-metals in the compound. This prefix indicates the number of atoms of each element in one molecule or formula unit of the compound. For example, P205 is named diphosphorus pen-toxide. Alternatively, the Stock System may be used, and P205 can be named phosphorus (V) oxide. AsBr3 is named phosphorus tribromide. 

---