Search results
Results From The WOW.Com Content Network
Phosphorus sulfides comprise a family of inorganic compounds containing only phosphorus and sulfur.These compounds have the formula P 4 S n with n ≤ 10. Two are of commercial significance, phosphorus pentasulfide (P 4 S 10), which is made on a kiloton scale for the production of other organosulfur compounds, and phosphorus sesquisulfide (P 4 S 3), used in the production of "strike anywhere ...
Phosphorus sesquisulfide is the inorganic compound with the formula P 4 S 3. It was developed by Henri Sevene and Emile David Cahen in 1898 as part of their invention of friction matches that did not pose the health hazards of white phosphorus. [2] [3] This yellow solid is one of two commercially produced phosphorus sulfides. It is a component ...
Phosphorus pentasulfide is the inorganic compound with the formula P 2 S 5 or P 4 S 10 . This yellow solid is the one of two phosphorus sulfides of commercial value. Samples often appear greenish-gray due to impurities. It is soluble in carbon disulfide but reacts with many other solvents such as alcohols, DMSO, and DMF.
Diphosphorus trisulfide (sometimes called phosphorus trisulfide) is a phosphorus sulfide with the formula of P 2 S 3. The substance is highly unstable and difficult to study. [3] In contrast, the formal dimer P 4 S 6 is well-known.
There are many ways to prepare phosphide compounds. One common way involves heating a metal and red phosphorus (P) under inert atmospheric conditions or vacuum. In principle, all metal phosphides and polyphosphides can be synthesized from elemental phosphorus and the respective metal element in stoichiometric forms.
Copper phosphide, Cu 3 P, also copper(I) phosphide, cuprous phosphide, cuprophosphorus and phosphor copper, is a compound of copper and phosphorus, a phosphide of copper. It has the appearance of yellowish-grey very brittle mass of crystalline structure. It does not react with water.
Gallium(III) sulfide, Ga 2 S 3, has 3 possible crystal modifications. [7]: 104 It can be made by the reaction of gallium with hydrogen sulfide (H 2 S) at 950 °C. [3]: 162 Alternatively, Ga(OH) 3 can be used at 747 °C: [8] 2 Ga(OH) 3 + 3 H 2 S → Ga 2 S 3 + 6 H 2 O. Reacting a mixture of alkali metal carbonates and Ga 2 O 3 with H
White phosphorus, yellow phosphorus or simply tetraphosphorus (P 4) exists as molecules of four phosphorus atoms in a tetrahedral structure, joined by six phosphorus—phosphorus single bonds. [1] The free P 4 molecule in the gas phase has a P-P bond length of r g = 2.1994(3) Å as was determined by gas electron diffraction . [ 2 ]