Potassium hydroxide iodate

Aluminium-hydrat, n. aluminum hydroxide, -iodat, n. aluminum iodate.. -jodid, n. aluminum iodide, -kaliumsulfat, n. aluminum potassium sulfate, -leglerung,/. aluminum alloy, -messing, n. aluminum brass, -oxydhydrat, n. aluminum hydroxide, -pul-ver, n. aluminum powder, -rhodanid, n. aluminum thiocyanate, -rohr, n., -rbhre, /. 

Kalium-hydrat, n. potassium hydroxide, -hy-drid, n. potassium hydride (KH). -hydroxyd, n. potassium hydroxide, -hydriir, n. potassium subhydride (IC2H or K4H2). -iridi-chlorid, n. potassium eh loroiridate. -jodat, n. potassium iodate. 

Potassium hydroxide Fig. 10.—Variation in the Speed of the Formation of Potassium Iodate with the Concentration of the Potassium Hydroxide. 

Dissolve 30 grms. of potassium chlorate in 60 c.c. of warm water contained in a 250 c.c. flask. Add 35 grms of iodine, and then 2 c.c. of cone, nitric acid. A vigorous reaction sets in chlorine gas along with a little vapour of iodine escapes. When the reaction subsides, boil the liquid to drive off the dissolved chlorine, and then add another gram of iodine. Concentrate the soln. by evaporation, and collect the crystals of potassium iodate on a Buchner s funnel. The crude product is purified by dissolving it in about 150 c.c. of hot water, neutralize the soln. with potassium hydroxide, and on cooling crystals of the desired salt are obtained. 

Sodium iodate dissolves copiously in warm dil. sulphuric acid without decomposition but it is decomposed by hydrochloric acid. The presence of potassium iodide causes potassium iodate to dissolve more readily than in pure water and although A. Ditte says that a double salt is not obtained from the soln., yet the phenomenon is probably due to the formation of a complex salt in soln. J, N. Bronsted measured the solubility of potassium iodate in aq. soln. of potassium hydroxide. Potassium iodate does not dissolve in alcohol. According to H. L. Wheeler, 100 grms. of water at 23° dissolve 21 grms. of rubidium iodate, and 26 grms. of caesium iodate at 24°. The specific gravity of a sat. aq. soln. of lithium iodate 52 at 18° is 1 568 thesp. gr. of soln. of potassium iodate calculated by G. T. Gerlach. from P. Kremers data, are ... 

The united crystals usually contain some acid iodate. They should be dissolved in a small volume of water (100 cc.), carefully neutralized with dilute potassium hydroxide, and re crystallized. 

Iodate. Potassium iodale, [CAS 7758-05-6], KIO3. wliile solid, soluble, melting point 560°C, formed (1) by electrolysis of potassium iodide under proper conditions, (2) by reaction of iodine and potassium hydroxide solution, and the fractional crystallization of iodate from iodide. Used as a source of iodate and iodic acid. 

Magnesium carbonate V Manganese carbonate P. 70 Manganese dioxide, powder IV, XI Nickel carbonate XI Phosphorus, red II, X Porcelain chips, unglazed E. 5, P. 56 Potassium carbonate IX Potassium chlorate III, VIII Potassium dichromate IV Potassium hydroxide II, III Potassium iodate VIII Potassium iodide IV, VIII Potassium nitrate IV, XI Potassium permanganate IV, VIII Potassium sulphate Q. 3 Silicon dioxide, precipitated IX Silicon dioxide, coarse sand P. 66, 67 Silicon dioxide, fine sand P. 8, 43 Sodium bicarbonate P. 55 Sodium bromide IV Sodium carbonate, anhydrous III, IX, XI... 

Potassium iodide, KI.—The iodide is obtained by neutralizing the carbonate with hydriodic acid, and also by the interaction of potassium hydroxide and iodine, the iodate simultaneously produced being converted into iodide by heat or by the action of a reducer such as carbon ... 

It is manufactured by the action of iron-filings on iodine in presence of water, the soluble iodide Fe3I8 formed being decomposed by potassium hydroxide, a process accompanied by precipitation of the oxide Fes04 and formation of a solution of potassium iodide. The salt crystallizes on concentration of the aqueous solution. It can also be prepared from the ashes of seaweed, and from the iodate present in Chile saltpetre. 

Write the eqijation for the formation of potassium iodate by the reactioii of powdered iodine wnth a hot solution of potassium hydroxide. 

H. Kappeler made a similar sulpliate by reducing solid iddic acid with dry sulphur dioxide. Aq. potassium hydroxide reacts with iodine dioxide to form potassium iodate and iodide 6I02+6K0H—5KI03+KI+3H20. The oxide I4O9 is thought to be iodine iodate, with tervalent iodine, namely, 1(103)3, reacts with water,... 

Formation of Potassium Iodate with the Concentration of the Potassium Hydroxide. 

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