Rubidium iodate

E. Muller made potassium iodate by electrolyzing the iodide. H. L. Wheeler 44 made rubidium iodate, RbI03, by the action of a mol. of iodine pentoxide on one of rubidium carbonate by treating a hot dil. soln. of iodine trichloride with rubidium hydroxide or carbonate by the action of iodic acid on a hot cone. soln. of rubidium chloride, RbCl. T. V. Barker obtained a good yield by passing chlorine into a hot cone. soln. of a mixture of rubidium iodide and hydroxide whereby the sparingly soluble iodate is precipitated. Caesium iodate, CsI03, was made in a similar way. 

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 ... 

Rubidium periodate, RbI04.—When a mixture of rubidium iodate and hydroxide in hot concentrated solution is oxidized with chlorine, the periodate is formed in colourless quadratic crystals isomorphous with those of potassium periodate, and with the density 3-918 at 16° C. At 13° C. its solubility is 0-65 gram in 100 grams of water.18... 

Karataeva IM, Vinogradov EE (1974) Lithium iodate- rubidium iodate- water and Uthium iodate- cesium iodate- water systems at SO.deg. Zh Neorg Khim 19 3156-3160... 

Palladium(II) oxide, 4825 Palladium(IV) oxide, 4835 Perchloric acid, 3998 Periodic acid, 4425 Permanganic acid, 4434 Peroxodisulfuric acid, 4482 Peroxodisulfuryl difluoride, 4328 Peroxomonosulfuric acid, 4481 Peroxytrifluoroacetic acid, 0666 Platinum hexafluoride, 4371 Platinum(IV) oxide, 4836 Plutonium hexafluoride, 4372 Potassium bromate, 0255 Potassium chlorate, 4017 Potassium dichromate, 4248 Potassium iodate, 4619 Potassium nitrate, 4650 Potassium nitrite, 4649 Potassium perchlorate, 4018 Potassium periodate, 4620 Potassium permanganate, 4647 Rhenium hexafluoride, 4373 Rubidium fluoroxysulfate, 4309 Ruthenium(VIII) oxide, 4862 Selenium dioxide, 4838 Selenium dioxide, 4838 Silver permanganate, 0021 Sodium chlorate, 4039 Sodium chlorite, 4038 Sodium dichromate, 4250 Sodium iodate, 4624 Sodium nitrate, 4721 Sodium nitrite, 4720... 

V. 1 Olivier a trace of iodine. L. Dieulafait found traces of lithium, rubidium, and caesium salt H. Beckurts, chlorates and perchlorates up to 5 64 per cent. M. Marcker, borates and humus C. F. Schfinbein, nitrites and ammonia R. Wagner, iodine and bromine. H. Griineberg says the former is present as iodate or periodate. 

Palladium(II) oxide, 4819 Palladium(IV) oxide, 4829 Perchloric acid, 3992 Periodic acid, 4419 Permanganic acid, 4428 Peroxodisulfuric acid, 4476 Peroxodisulfuryl difluoride, 4322 Peroxomonosulfuric acid, 4475 Peroxytrifluoroacetic acid, 0662 Platinum hexafluoride, 4365 Platinum(IV) oxide, 4830 Plutonium hexafluoride, 4366 Potassium bromate, 0255 Potassium chlorate, 4011 Potassium dichromate, 4242 Potassium iodate, 4614 Potassium nitrate, 4645 Potassium nitrite, 4644 Potassium perchlorate, 4012 Potassium periodate, 4615 Potassium permanganate, 4642 Rhenium hexafluoride, 4367 Rubidium fluoroxysulfate, 4303 Ruthenium(VIII) oxide, 4856 Selenium dioxide, 4832 Selenium dioxide, 4832 Silver permanganate, 0021... 

Caesium iodate, CsI03.—The iodate is precipitated by the action of chlorine on a hot concentrated solution of caesium iodide and hydroxide.6 It yields monoclinic crystals, isomorphous with the corresponding salts of rubidium and potassium, and of density 4-831 at 16° C. At 24° C. its solubility is 2-6 grams in 100 grams of water.7... 

F. Bammelsberg and T. V. Barker made anhydrous ammonium metaper-iodate, NH4IO4, in tetragonal crystals which are isomorphous with the corresponding sodium, potassium, and rubidium salts, and which have the axial ratio 1 5211. 

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