II Cyanides

If nickel(II) cyanide, Ni(CN)2, is dissolved in excess potassium cyanide, the orange-red complex salt K2Ni(CN)4. HjO can be crystallised out this contains the stable square-planar [Ni(CN)4] anion. [Pg.407]

Addition of aqueous cyanide ion to a copper(II) solution gives a brown precipitate of copper(II) cyanide, soluble in excess cyanide to give the tetracyanocuprate(II) complex [Cu(CN)4] . However, copper(II) cyanide rapidly decomposes at room temperature, to give copper(I) cyanide and cyanogen(CN)2 (cf. the similar decomposition of copper(II) iodide, below) excess cyanide then gives the tetracyanocuprate(I) [Cu(CN)4] . [Pg.413]

Mercury(II) cyanide Fluorine, hydrogen cyanide, magnesium, sodium nitrite... [Pg.1209]

Chemical Designations - Synonyms Cianurina Mercury cyanide Mercury (II) cyanide Chemical Formula Hg(CN)j... [Pg.245]

Cyanquecksilber, n. mercury cyanide, -kalium, n. mercury potassium cyanide, -oxyd, n. mercuric cyanide, mercury(II) cyanide. [Pg.95]

Ferrocyanid, n. ferrous cyanide, iron(II) cyanide ferrocyanide. [Pg.151]

Kupfer-bromid, n. copper bromide, specif, cupric bromide, copper(II) bromide, -bro-mtir, n. cuprous bromide, copper(I) bromide, -chlorid, n. copper chloride, specif, cupric chloride, copper(II) chloride, -chloriir, n. cuprous chloride, copper(I) chloride, -cyamd, Ti. copper cyanide, specif, cupric cyanide, copper(II) cyanide, -cyaniir, n. cuprous cyanide, copper(I) cyanide, -dom, m. slag from liquated copper, -draht, m. copper wire, -drahtnetz, n. copper gauze, -drehspane,... [Pg.265]

Merkuri-. mercuric, mercuri-, mercury(II). Merkuriah en, pi. Pharm.) mercurials. Merkuriahnittel, n. Pharm.) mercurial. Merkuri-ammoniumchlorid, n. mercuriammo-nium chloride, -azetat, n. mercuric acetate, mercury(II) acetate, -chlorid, n. mercuric chloride, mercury(II) chloride, -cyamd, n. mercuric cyanide, mercury(II) cyanide, -cyanwasserstoffs ure, /. mercuricyanic acid, cyanomercuric(II) acid. [Pg.294]

The Co(III) complexes Co(NH3)6 " and Co(NH3)sOH bring about oxidation of stannate(II) ion in strongly basic solution . The rates were found to be independent of the concentration of the Co(III) complex. It is proposed that stannate(Il) exists as a dimer, and that the monomer is the reactive species, the rate being close to half-order in stannate(II). Cyanide and thiosulphate catalyse the reaction but Co(CN)g is immune to attack by stannate(II) ion. The experimental difficulties encountered in this study preclude a full analysis as regards mechanism. [Pg.223]

The behavior of Hg(CN)2 toward the dinuclear gold(I) amidinate complexes requires comment. In the case of the dinuclear gold(I) ylide, oxidation of the Au(I) to Au(II) resulted in the formation of a reduced mercury(O) product. Figure 1.19(a) [36]. In the mercury(II) cyanide reaction with the dinuclear gold(I) dithiophosphinate. Figure 1.19(b), the stability of the gold(I)-carbon bond compared... [Pg.14]

The compound is explosive when pure, and sensitive to impact or heat. It is stabilised for commerce by the presence of a major excess of mercuiy(II) cyanide [1]. Several explosive incidents have been described [2], most involving friction [3],... [Pg.365]

Mixtures of sodium nitrite and various cyanides [1] explode on heating, including potassium cyanide [2], potassium hexacyanoferrate(III), sodium pentacyanonitro-sylferrate(II) [3], potassium hexacyanoferrate(II) [4], or mercury(II) cyanide [5], Such mixtures have been proposed as explosives, initiable by heat or a detonator [5],... [Pg.1775]

In a related study, Srivastava and Collibee employed polymer-supported triphenyl-phosphine in palladium-catalyzed cyanations [142]. Commercially available resin-bound triphenylphosphine was admixed with palladium(II) acetate in N,N-dimethyl-formamide in order to generate the heterogeneous catalytic system. The mixture was stirred for 2 h under nitrogen atmosphere in a sealed microwave reaction vessel, to achieve complete formation of the active palladium-phosphine complex. The septum was then removed and equimolar amounts of zinc(II) cyanide and the requisite aryl halide were added. After purging with nitrogen and resealing, the vessel was transferred to the microwave reactor and irradiated at 140 °C for 30-50 min... [Pg.377]

Mercury(II) cyanide Mercury(I) nitrate Mercury(II) nitrate Fluorine, hydrogen cyanide, magnesium, sodium nitrite Phosphorus Acetylene, aromatics, ethanol, hypophosphoric acid, phosphine, unsaturated organic compounds... [Pg.1478]

Aside from alkoxycarbonylations, hydroxycarbonylations in the presence of water to yield allenic carboxylic acids [15] (93, Y = OH) and aminocarbonylations in the presence of amines to give the analogous amides [139] (93, Y = NRR ) have also been carried out, respectively (Scheme 7.13). These products of structure 102 can also be obtained if using the propargylamines 101 with R1 = Ph or R3 Z H as starting materials (Scheme 7.15) [140]. Additionally, hydroxycarbonylations, also termed carboxyla-tions, are successful without palladium catalysis by reaction of propargyl halides and carbon monoxide in the presence of nickel(II) cyanide under phase-transfer conditions [141, 142]. [Pg.372]

Hexaazido-2,4,6-triaza-1,3,5-triphosphorine, 4795 Hydrogen azide, 4441 f Hydrogen selenide, 4486 f Hydrogen telluride, 4488 Iodoform, 0376 Lead(II) azide, 4782 Lead(IV) azide, 4790 Mercury(II) cyanide, 0976 Mercury(II) fulminate, 0978... [Pg.140]

Methyl isocyanide, 0759 Nickel(II) cyanide, 0997 Nitrogen oxide, 4724 Nitrogen trichloride, 4143 Nitrosyl chloride, 4023 Nitrogen triodide, 4633 Nitryl chloride, 4025 Nitryl hypolluorite, 4304 Oxygen dilluoride, 4317... [Pg.141]

Chromyl isothiocyanate, 0612 Copper(I) cyanide, 0620 Copper(II) cyanide, 0616 Copper(II) thiocyanate, 0618... [Pg.229]

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