Metal perchlorates

Ammonium Perchlorate. Heats of formation for the metal perchlorates are nearly the same as those for the corresponding chlorides, so that the reaction... [Pg.65]

Alkali Metal Perchlorates. The anhydrous salts of the Group 1 (lA) or alkah metal perchlorates are isomorphous with one another as well as with ammonium perchlorate. Crystal stmctures have been determined by optical and x-ray methods (38). With the exception of lithium perchlorate, the compounds all exhibit dimorphism when undergoing transitions from rhombic to cubic forms at characteristic temperatures (33,34). Potassium perchlorate [7778-74-7] KCIO, the first such compound discovered, is used in pyrotechnics (qv) and has the highest percentage of oxygen (60.1%). [Pg.66]

The alkah metal perchlorates are either white or colorless, and have increasing solubiUty in water in the order of Na > Li > NH4 > K> Rb > Cs. The high solubiUty of sodium perchlorate, NaClO, makes this material useful as an intermediate for production of all other perchlorates by double metathesis reactions and controlled crystallization. [Pg.66]

Group 13 (IIIA) Perchlorates. Perchlorate compounds of boron and aluminum are known. Boron perchlorates occur as double salts with alkah metal perchlorates, eg, cesium boron tetraperchlorate [33152-95-3] Cs(B(C104)4) (51). Aluminum perchlorate [14452-95-3] A1(C104)2, forms a series of hydrates having 3, 6, 9, or 15 moles of water per mole of compound. The anhydrous salt is prepared from the trihydrate by drying under reduced pressure at 145—155°C over P2O5 (32). [Pg.66]

Group 3 (IIIB) and Inner Transition-Metal Perchlorates. The rare-earth metal perchlorates of yttrium and lanthanum have been reported (53). Tetravalent cerium perchlorate [14338-93-3] 06(0.04)4, and uranium perchlorate have also been identified (54). [Pg.66]

Perchlorates. Historically, perchlorates have been produced by a three-step process (/) electrochemical production of sodium chlorate (2) electrochemical oxidation of sodium chlorate to sodium perchlorate and (4) metathesis of sodium perchlorate to other metal perchlorates. The advent of commercially produced pure perchloric acid directly from hypochlorous acid means that several metal perchlorates can be prepared by the reaction of perchloric acid and a corresponding metal oxide, hydroxide, or carbonate. [Pg.67]

Group 1 Chlorate and metal perchlorate report or whistling compositions Dry non-gelatinized cellulose nitrates Barium peroxide/zirconium compositions Burn very violently Flash shells (maroons) Casings containing flash compositions Sealed hail-preventing rockets Mass explosion risk... [Pg.242]

Perchlorates are known for most metals in the periodic table.The alkali-metal perchlorates are thermally stable to several hundred degrees above room temperature but NH4CIO4 deflagrates with a yellow flame when heated to 200° ... [Pg.868]

Metals. It reacts with electropositive metals to evolve H and form metal perchlorates. These... [Pg.619]

The Hg/dimethyl formamide (DMF) interface has been studied by capacitance measurements10,120,294,301,310 in the presence of various tetraalkylammonium and alkali metal perchlorates in the range of temperatures -15 to 40°C. The specific adsorption of (C2H5)4NC104 was found to be negligible.108,109 The properties of the inner layer were analyzed on the basis of a three-state model. The temperature coefficient of the inner-layer potential drop has been found to be negative at Easo, with a minimum at -5.5 fiC cm-2. Thus the entropy of formation of the interface has a maximum at this charge. These data cannot be described... [Pg.60]

Karayannis NM, Owens C, Pytlewski LL, et al. 1969. Diisopropyl methylphosphonate complexes of metal perchlorates. Journal of Inorganic and Nuclear Chemistry 31(7) 2059-2071. [Pg.150]

See other metal perchlorates, oxidants, solvated oxosalt incidents 0013. Silver fluoride... [Pg.13]

See related METAL PERCHLORATES, N-S COMPOUNDS See other silver compounds... [Pg.21]

If the ratio of the calcium chelate salt to the trihydrated barium salt in a mixture is above 2 1, the thermal decomposition during DTA/TG analysis may be explosive. See other metal perchlorates... [Pg.92]

Iodine pentafluoride Metals Nitric acid Metals Nitrosyl fluoride Metals Perchloric acid Bismuth See other METALS... [Pg.99]

See other static initiation incidents See related metal perchlorates... [Pg.177]

See Other METAL PERCHLORATES, SOLVATED OXOSALT INCIDENTS... [Pg.287]

See entry ORGANOSILYL PERCHLORATES See Other NON-METAL PERCHLORATES... [Pg.461]

See related METAL PERCHLORATES See other MERCURY COMPOUNDS... [Pg.482]

See Dimethyl sulfoxide Metal oxosalts See also metal perchlorates (reference 2)... [Pg.651]

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