Sulfur phosphide

SYNS PENTASULFURE de PHOSPHORE (FRENCH) PHOSPHORIC SULFIDE PHOSPHORUS PENT-ASULFIDE, free from yellow or white phosphorus (DOT) PHOSPHORUS PERSULFIDE RCRA WASTE NUMBER UI89 SIRNIK FOSFORECNY (CZECH) SULFUR PHOSPHIDE THIOPHOSPHORIC ANHYDRIDE... 

SULFUROUS ACID, MONOSODIUM SALT see SFEOOO SULFUROUS ACID, SODIUM SALT (1 2) see SJZOOO SULFUROUS ANHYDRIDE see SOH500 SULFUROUS DICHLORIDE see TFLOOO SULFUROUS OXIDE see SOH500 SULFUROUS OXYCHLORIDE see TFLOOO SULFUROUS OXYFLUORIDE see TFL250 SULFUR OXIDE see SOH500 SULFUR PENTAFLUORIDE see SOQ450 SULFUR PHOSPHIDE see PHSOOO SULFUR SELENIDE see SBTOOO SULFUR SUBCHLORIDE see SON510... 

SULFUR PHOSPHIDE (1314-80-3) P4S,o Flammable solid (autoignition temp 287°F/14rC Fire Rating 1). Dust and powder forms explosive mixture with air in... 

Synonyms/Trade Names Phosphorus persulfide, Phosphorus sulfide, Sulfur phosphide ... 

Synonyms phosphorus sulfide phosphoric sulfide phosphorus persulfide sulfur phosphide, thiophosporic anhydride... 

Phosphoms shows a range of oxidation states from —3 to +5 by virtue of its electronic configuration. Elemental P is oxidized easily by nonmetals such as oxygen, sulfur, and halides to form compounds such as 2 5 2 5 reduced upon reaction with metals to generate phosphides. The... 

Nitrogen and sodium do not react at any temperature under ordinary circumstances, but are reported to form the nitride or azide under the influence of an electric discharge (14,35). Sodium siHcide, NaSi, has been synthesized from the elements (36,37). When heated together, sodium and phosphoms form sodium phosphide, but in the presence of air with ignition sodium phosphate is formed. Sulfur, selenium, and tellurium form the sulfide, selenide, and teUuride, respectively. In vapor phase, sodium forms haHdes with all halogens (14). At room temperature, chlorine and bromine react rapidly with thin films of sodium (38), whereas fluorine and sodium ignite. Molten sodium ignites in chlorine and bums to sodium chloride (see Sodium COMPOUNDS, SODIUM HALIDES). 

Phosphoms trichloride and pentachloride form sodium chloride and sodium phosphide, respectively, in the presence of sodium. Phosphoms oxychloride, POCl, when heated with sodium, explodes. Carbon disulfide reacts violendy, forming sodium sulfide. Sodium amide (sodamide), NaNH2, is formed by the reaction of ammonia gas with Hquid sodium. SoHd sodium reacts only superficially with Hquid sulfur dioxide but molten sodium and gaseous... 

If tin and sulfur are heated, a vigorous reaction takes place with the formation of tin sulfides. At 100—400°C, hydrogen sulfide reacts with tin, forming stannous sulfide however, at ordinary temperatures no reaction occurs. Stannous sulfide also forms from the reaction of tin with an aqueous solution of sulfur dioxide. Molten tin reacts with phosphoms, forming a phosphide. Aqueous solutions of the hydroxides and carbonates of sodium and potassium, especially when warm, attack tin. Stannates are produced by the action of strong sodium hydroxide and potassium hydroxide solutions on tin. Oxidizing agents, eg, sodium or potassium nitrate or nitrite, are used to prevent the formation of stannites and to promote the reactions. 

See Sulfuric acid, Organic materials, above Zinc phosphide... 

Fig. 6-47. Mott-Schottky plot of electrode capacity observed for n-type and p-type semiconductor electrodes of gallium phosphide in a 0.05 M sulfuric add solution. [From Meouning, 1969.]...

The element combines with many nonmetals upon heating, forming its binary salts. It combines with halogens when heated, forming the corresponding halides. Heating with phosphorus, sulfur, and tellurium produces phosphide, CdsP2 sulfide, CdS and teUuride, CdTe salts, respectively. 

The metal combines with sulfur and phosphorous on heating, forming the sulfide and phosphide salts, respectively. Metalloid elements, such as arsenic, antimony, selenium and tellurium also combine with indium at elevated temperatures, forming their respective binary salts. 

Zinc reduces dilute sulfuric acid solution of hypophosphiles to phosphine recognizable by odor (difference from phosphides). 

Phosphine has been prepared by the action of either water1 or hydrochloric acid2 on calcium phosphide or zinc phosphide 3 the reaction of hot basic solutions on elemental phosphorus 4 the pyrolysis of phosphorus acid 5 and the action of sulfuric acid on aluminum phosphide. The last method is the most convenient for the laboratory preparation of phosphine. 

The heat sensitivity (above) may explain the explosions which occur on contact of many readily oxidisable materials with this powerful oxidant. Such materials include ammonia, potassium arsenic, antimony sulfur, charcoal (adsorptive heating may also contribute) calcium phosphide, phosphine, phosphorus hydrogen sulfide, antimony sulfide, barium sulfide, mercury sulfide and tin sulfide [1], Various organic materials (paper, cork, rubber, turpentine, etc.) behave similarly [2]. Mixtures with hydrogen detonate on ignition [1]. 

White phosphoms has been used in the manufacture of rat and cockroach poisons, pesticides, matchheads, firecrackers, and ammunitions in the military. However, other chemicals such as sulfur have replaced phosphorus in matchheads. Phosphoms is also used as a fumigant in the storage of grain in the form of aluminum phosphide pellets. Due to ease of application, pellets of aluminum or magnesium phosphide are commonly used (Garry et al. 1989). 

Compound typically containing sulfur, chlorine, or phosphorus lubricant which reacts with surface of the metal or tool to form a sulfide, chloride, or phosphide compound which has a low shear strength. 

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