Russian Journal of Inorganic Chemistry, Tập 8British Library Lending Division with the cooperation of the Royal Society of Chemistry, 1963 |
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Kết quả 1-3 trong 51
Trang 243
... vanadium ( IV ) Excess of phenol Pyrocatechol Pyrogallol Guaiacol 3 : 1 2 : 1 3 : 1 3 : 2 2 : 1 1 : 1 TABLE 5. Colours of phenolic compounds of vanadium ( IV ) in sulphuric acid of different concentrations . H2SO , % Phenol pyrogallol ...
... vanadium ( IV ) Excess of phenol Pyrocatechol Pyrogallol Guaiacol 3 : 1 2 : 1 3 : 1 3 : 2 2 : 1 1 : 1 TABLE 5. Colours of phenolic compounds of vanadium ( IV ) in sulphuric acid of different concentrations . H2SO , % Phenol pyrogallol ...
Trang 281
... vanadium triiodide is important for refining the metal by the iodide method and also of theoretical interest , its thermodynamic properties have not been determined . Vanadium has two iodides which are stable in the condensed phase ...
... vanadium triiodide is important for refining the metal by the iodide method and also of theoretical interest , its thermodynamic properties have not been determined . Vanadium has two iodides which are stable in the condensed phase ...
Trang 284
... vanadium triiodide in alkaline solution with hydrogen peroxide has been found to be -143 ± 2 kcal mole - 1 ; the enthalpy of dissolution of vanadium pentoxide in the same solution in the presence of potassium iodide was -7.7 ± ± 0.1 ...
... vanadium triiodide in alkaline solution with hydrogen peroxide has been found to be -143 ± 2 kcal mole - 1 ; the enthalpy of dissolution of vanadium pentoxide in the same solution in the presence of potassium iodide was -7.7 ± ± 0.1 ...
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BABAEVA I B BARANOVSKII and Yu Ya KHARITO | 106 |
S VOLZHENSKII M V PASHKOVSKII | 129 |
February | 132 |
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absorption acetate acid Akad alkali alloys ammonia ammonium analysis anions aqueous phase aqueous solutions caesium calculated cations Chem chemical chloride cm² complex composition compounds concentration constant coprecipitation corresponding crystallisation crystals curve decomposition determined diagonals dissociation equilibrium diagram ether ethylenediamine eutectic extraction formation formed gallic acid H₂O heating hydrated hydrochloric acid hydrogen hydrolysis hydroxide increase indium Inorg ions iridium isomolar isotherm K₁ K₂TaF kcal Khim ligand melting metal method mixture molar mole molecules molybdate molybdenum NaCl NaOH Nauk SSSR Neorg niobium nitrobenzene Obshch obtained organic phase oxide partition coefficient phenols potassium praseodymium precipitate ratio reaction reciprocal system rhodium rubidium Russ salts shows sodium solid phase solid solutions solu solubility solvent spectra stability studied sulphide Table tantalum temperature ternary system thallium thermal thorium tion titration values vanadium vapour pressure X-ray Zhur