Potassium antimonide

Individually indexed alloys or intermetallic compounds are Aluminium amalgam, 0051 Aluminium-copper-zinc alloy, 0050 Aluminium-lanthanum-nickel alloy, 0080 Aluminium-lithium alloy, 0052 Aluminium-magnesium alloy, 0053 Aluminium-nickel alloys, 0055 Aluminium-titanium alloys, 0056 Copper-zinc alloys, 4268 Ferromanganese, 4389 Ferrotitanium, 4391 Lanthanum-nickel alloy, 4678 Lead-tin alloys, 4883 Lead-zirconium alloys, 4884 Lithium-magnesium alloy, 4681 Lithium-tin alloys, 4682 Plutonium bismuthide, 0231 Potassium antimonide, 4673 Potassium-sodium alloy, 4646 Silicon-zirconium alloys, 4910... 

Lead—tin alloys, 4877 Lead—zirconium alloys, 4878 Lithium—magnesium alloy, 4676 Lithium—tin alloys, 4677 Plutonium bismuthide, 0231 Potassium antimonide, 4668 Potassium—sodium alloy, 4641 Silicon—zirconium alloys, 4904 Silver—aluminium alloy, 0002 Silvered copper, 0003 Sodium germanide, 4412 Sodium—antimony alloy, 4791 Sodium—zinc alloy, 4792 Titanium—zirconium alloys, 4915... 

Poly(difluorosilylene), 4324 Potassium antimonide, 4668 Potassium terf-butoxide, 1645 Potassium cyclopentadienide, 1840 Potassium diethylamide, 1679 Potassium octacyanodicobaltate(8—), 2875 Potassium—sodium alloy, 4641... 

Poly(difluorosilylene), 4330 Potassium antimonide, 4673 Potassium tert-butoxide, 1650 Potassium cyclopentadienide, 1846 Potassium diethylamide, 1685 Potassium octacyanodicobaltate(8—), 2880 Potassium-sodium alloy, 4646... 

Alkyl-combination.—Antimony hydride (SbHj), like arsenic hydride (AsHg) and phosphorus hydride (PHj), can give rise to organic compounds in which the H-component is replaced by an alkyl. It is then called stihirte. It can be produced by allowing iodine-alkyls to act upon potassium antimonide or upon sodium antimom de, or by the reaction between antimony chloride and zinc-alkyls. 

Reactions with phosphorus, arsenic and antimony form phosphide, arsenide, and antimonide of potassium, respectively ... 

The phosphides, arsenides, and antimonides of the other metals are usually dark-coloured substances, with more or less metallic lustre, and therefore conductors of electricity. Some of them occur native for example, smaltine, CoAs2, a common ore of cobalt, forming silver-white crystals copper-nickel, NiAs, red lustrous crystals, and one of the chief nickel ores speiss, a deposit formed in the pots in which smaltine and copper-nickel are fused with potassium carbonate and silica, in the preparation of smalt, a blue glass containing cobalt its formula appears to be Ni8As2. Mispickel, or arsenical pyrites, is a white lustrous substance, of the formula FeSAs. 

Starting from the potassium bis(trimethylsilyl)antimonide 31 (M = K) prepared in situ from the reaction of KOBu and Sb(TMS)3, the potassium 1,4,2-diphosphastibolide 22 (M = K(DME)2) is formed in the same way <2001JOM61>. In every case, the 1,4,2-diphosphastibolide is contaminated with ca. 25% of the corresponding 1,2,4-triphospholide (see Chapter 6.13). The components of this mixture cannot be separated by fractional crystallization. 

Lithium antimonide, Li3Sb.—Since the direct combination of lithium and antimony is very violent, Lebeau 5 recommends preparing the antimonide by the electrolysis of a fused mixture of lithium and potassium chloride with an iron cathode covered with antimony. It is a dark-grey, crystalline substance of a very reactive nature. Its density at 17° C. is 3 2, and its melting-point is 9503 C. The compound is also formed by the action of antimony on a solution of lithium in liquefied ammonia.6... 

One method for the synthesis of cyclic silicon-phosphorus compounds is the reaction of alkaliphosphides with dichlorosilanes [1]. Using sodium/potassium phosphide, -arsenide, -antimonide and -bismutide Na3E/K3E (E = P, As, Sb and Bi) [2] with various di-, tri-, and tetrachloroorganosilanes, cages of the following types (Fig 1.) have been synthesized so far. 

The thermodynamic properties of aluminum antimonide have been previously studied by the electromotive force (emf) method using aluminum chloride as the electroljrte in fused lithium and potassium chlorides [4], The calculated value [4] of the standard entropy of solid aluminum antimonide S 98 = 6.0 0.8 eu/g-atom and that obtained by Piesbergen [5] from measurements of low-temperature specific heat, = 7.68 0.05 eu/g-atom do not agree even within the... 

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