Lithium Iodate 279 COMPONENTS: ORIGINAL MEASUREMENTS: Shklovskaya, R.M.; Arkhipov, S.M. (1) Lithium iodate; Li103; [13765-03-2] Kidyarov, B.l.; Mitnitski, P.L. (2) lodic acid; HI03; [7782-68-2] lzv. S~b. Otd. AQad. NauQ SSSR S~. (3) Water; H20; [7782-18-5] Khim. NauQ 1976, (61, 89-91. VARIABLES: PREPARED BY: T/K = 273 to 373 K Hiroshi Miyamoto EXPERIMENTAL VALUES: The solubility of lithium iodate in aqueous solutions containing 10 mass % Hl03a t/OC solubility of Lil03 mass % mol kg-l (compiler) o 45.07 4.512 10 45.30 4.554 20 43.62 4.255 25 43.53 4.239 30 42.91 4.133 40 42.83 4.120 50 42.70 4.098 60 42.52 4.068 70 42.19 4.013 80 42.1 4.00 90 41.1 3.84 100 42.19 4.013 aInitial composition of aqueous solution is 10 mass % HI03 . AUXILIARY INFORMATION METHOD/APPARATUS/PROCEDURE: SOURCE AND PURITY OF MATERIALS: The compiler assumes that saturated "Chemically pure" grade Lil03 was used. solutions were prepared isothermally. The total amount of impurities did not Equilibrium was reached in 8 hours. exceed 0.001 %. lodic acid was prepared as described in The iodate concentration of the saturated ref (1). solutions was determined by titration with thiosulfate solution. ESTIMATED ERROR: Nothing specified. REFERENCES: 1. Vulikh, A.I.; Bogatyrev, V.L.; Kaz'minskaya, V.A.; Zherdienko, L.P. Me.thodq Po.euche.u.qa KhimcheAUQh Reallivov ~ PltepaJtatov lREA, VCfP. 16.M., 5.5. 280 Lithium Iodate COMPONENTS: ORIGINAL HEASUREHENTS: (1) Lithium iodate; LiI03; [13765-03-2] Tarasova, G.N.; Vinogradov, E.E.; Lepeshkov, I.N. (2) Ammonium iodate; NH4I03; [13446-09-8] Zh. Neo~g. Khim. 1976, 21, 3373-6; (3) Water; H20; [7732-18-5] RUh~. J. InMg. Chem. IEngl. TltaMl.} 1976, 21, 1858-60. VARIABLES: PREPARED BY: Composition at 298.2 K. Hiroshi Miyamoto EXPERIMENTAL VALUES: Composition of saturated solutions at 25.0°c Lil03 NH 4I03 Nature of mass % mol % mass % mol % the solid (compiler) (compiler) phasea 0.00 0.000 3.72b 0.359 A 1.13 0.116 2.79 0.270 " 9.14 1.001 1.48 0.153 A+C 9.35 1.026 1.47 0.152 " 9.28 1.083 1.50 0.155 " 9.17 1.005 1.46 0.151 " 9.34 1.026 1.50 0.155 " 19.48 2.344 0.12 0.014 C 37.21 5.557 0.15 0.021 37.93 5.721 0.16 0.023 " 42.27 6.769 0.06 0.009 " 41.92 6.692 0.19 0.029 C+B 42.14 6.735 0.05 0.008 43.90b 7.195 B b For binary systems the compiler computes the following: -1 soly of LiI03 = 4.303 mol kg -1 soly of NH4I03 = 0.200 mol kg AUXILIARY INFORMATION HETHOD/APPARATUS/PROCEDURE: COMMENTS AND OR ADDITIONAL DATA: Isothermal method used. Equilibrium was The phase diagram is given below (based on reached in 5-6 days. The liquid and solid mass % units). phases were analyzed for Li+ by the periodat method. Iodate was determined by titration with sodium thiosulfate in the presence of H2S04 and KI and NH + was determined 4 l­ gravimetrically with sodium tetraphenyborate I I The composition and nature of the solid lOt phases were found by use of Schreinemakers' I I method of residues, X-ray diffraction, I thermography and infrared spectroscopy. I I I x SOURCE AND PURITY OF MATERIALS: I I Lithium iodate was prepd from lithium car­ I bonate and iodic acid. IDI4I03 was prepd \ I by mixing a slight excess of NH40H with I HI03 in water. The precipitate was then \ I filtered and washed to remove the excess mI3' I I ESTIMATED ERROR: Soly: nothing specified. Temp: precision ± 0.1 K. Lithium Iodate 281 COMPONENTS: ORIGINAL MEASUREMENTS: (1) Lithium sulfate; Li2S04; [13453-86-6] Shk1ovskaya, R.M.; Arkhipov, S.M.; Kidyarov, B.I.; Tsibu1evskaya, K.A. (2) Lithium iodate; LiI03; [13765-03-2] Zh. Neo~g. Khim. 1978, 23, 2565-6; (3) Water; H 0; [7732-18-5] Ruu.. J. InMg. Chern. (Eng£.. T!litnbl.l 2 1978, 23, 1421-2. VARIABLES: PREPARED BY: Composition at 298.2 K Hiroshi Miyamoto EXPERIMENTAL VALUES: Composition of saturated solutions at 25.0°C LilO3 Li2S04 Nature of mass % mol % mass % mol % the solid (compiler) (compiler) phasea 43.82b 7.173 - - A 41.53 6.778 2.25 0.607 37.76 5.956 3.80 0.991 35.99 5.690 5.87 1.535 32.40 4.965 7.36 1.865 27.35 4.078 10.67 2.632 25.44 3.755 11.91 2.908 22.30 3.247 14.19 3.417 19.51 2.799 16.00 3.797 17.66 2.550 18.50 4.418 A+B 16.51 2.355 18.73 4.418 B 14.98 2.112 19.41 4.526 " 12.96 1. 789 19.80 4.521 " 9.43 1.268 21. 30 4.736 " 7.51 0.945 22.03 4.825 " 5.55 0.727 23.17 5.020 2.99 0.385 24.34 5.183 " - - 25.84 5.401 " a A = a-LilO3; B = Li2S04·H20 b For the binary system the compiler computes the following: -1 soly of LiI03 = 4.289 mol kg AUXILIARY INFORMATION METHOD/APPARATUS/PROCEDURE: COMMENTS AND/OR ADDITIONAL DATA: Isothermal method used. Equilibrium was The phase diagram is given below (based on reached in 15-20 days. mass % units). Aliquots of liquid phases were analyzed for iodate by iodometric titration and for sul­ fate gravimetrically as barium sulfate. Before precipitating the sulfate ion, the Liro aliquots were treated with hydroxylamine hydrochloride in acidic medium to reduce l\ 103-' after which iodine was removed by boiling the solution. The solid phases were 40 identified by the method of residues, and X-ray diffraction. 60 SOURCE AND PURITY OF MATERIALS: Highly pure grade a-LiI03 and lithium sulfate monohydrate were used. ~O ESTIMATED ERROR: ~ Soly: nothing specified. ZO Temp: precision ± 0.1 K. k ,...... \. 'Li 80 H O ZO' qo 60 Li S0 .H O 2 4 2 2 4 2 282 Lithium Iodate COMPONENTS: ORIGINAL MEASUREMENTS: (1) Lithium chloride; LiCl; [7447-41-8) Shklovskaya, R.M.; Arkhipov, S.M.; Kidyarov, B.I.; Kuzina, V.A. (2) Lithium iodate; LiI03; [13765-03-2) Zh. Nea4g. Khim. 1979, 24, 203-6; (3) Water; H 0; [7732-18-5) RU6.6. J. 11104g. Chern. (Engi. T4aI1.6L) 2 1979, 24, 113-4. VARIABLES: PREPARED BY: Composition at 298.2 K Hiroshi Miyamoto EXPERIMENTAL VALUES: Composition of saturated solutions at 25.0·C LilO3 LiCl Nature of mass % mol % mass % mol % the solid (compiler) (compiler) phasea 43.82b 7.173 A 39.58 6.147 0.96 0.64 32.34 4.662 3.73 2.31 " 20.08 2.600 9.37 5.203 12.58 1.543 13.77 7.247 " 6.96 0.831 18.77 9.617 " 3.37 0.407 25.91 13.42 2.04 0.255 32.82 17.59 1.97 0.251 35.61 19.46 " 1.90 0.243 35.94 19.68 A+C 1. 95 0.250 36.60 20.15 C 1. 70 0.218 36.96 20.34 C+D 0.89 0.115 39.11 21.67 D 0.71 0.093 41.03 23.01 " 0.52 0.069 42.99 24.42 0.39 0.052 44.68 25.67 " 0.33 0.044 45.16 26.03 D+B 45.51 26.19 B a D a A a a-Lil03;B = LiCl; C = Lil03'LiC1.H2O; 2LiI03·3LiCl.3H20 b For the binary system the compiler comtutes the following: soly of LiI03 = 4.289 mol kg- AUXILIARY INFORMATION METHOD/APPARATUS/PROCEDURE: COMMENTS AND lOR ADDITIONAL DATA: The ternary system LiI03-LiCl-H20 was The phase diagram based on mass % units is studied by the isothermal method. Equili­ given below. brium was established in 20-30 days. Aliquots of the liquid phases were analyzed for lithium by ion exchange, and for iodate by iodometric titration. The chloride was determined by difference. The solid phases were identified by the method of residues, checked by X-ray diffraction, 80 and thermographically. "Lir03' LiCl.H20 SOURCE AND PURITY OF MATERIALS: '"2l.iI03·3r~Cl.3H20 GO a-LiI03 and LiCl.H20 were of special ,\ purity grade. ESTIMATED ERROR: 40 Soly: nothing specified. Temp: precision ± 0.1 K. 20 o 20 LiCl Lithium Iodate 283 COMPONENTS: ORIGINAL MEASUREMENTS: (1) Lithium bromide; LiBr; [7550-35-8] Arkhipov, S.M.; Kashina, N.I.; Kidyarov, B.I.; Kuzina, V.A. (2) Lithium iodate; Lil03; [13765-03-2] Zh. Neang. Khlm. 1983, 28, 2647-9; (3) Water; H20; [7732-18-5] RUM. J. Inang. Chern. (Eng£. T!ta./M£.l 1983, 28, 1503-4. VARIABLES: PREPARED BY: Composition at 298.2 K Hiroshi Miyamoto EXPERIMENTAL VALUES: Composition of saturated solutions at 25.0 o C LilO3 LiBr Nature of mass % mol % mass % mol % the solid (compiler) (compiler) phasea 43.80b 7.168 A 36.40 5.521 2.39 0.759 33.51 5.103 6.00 1.913 26.40 3.864 10.77 3.301 17.10 2.427 18.66 5.545 " 6.39 0.915 31.66 9.497 " 3.34 0.501 39.01 12.25 2.13 0.340 45.33 15.13 1.86 0.303 47.25 16.10 A+B 1.46 0.239 48.01 16.43 B 0.86 0.145 51.07 18.03 0.65 0.113 53.50 19.47 0.40 0.071 55.60 20.75 " 0.32 0.058 56.47 21.