Russian Journal of Inorganic Chemistry, Tập 11,Phần 1British Library Lending Division with the cooperation of the Royal Society of Chemistry, 1966 |
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Trang 17
... REDUCTION OF SULPHATES OF THE RARE - EARTH ELEMENTS BY CARBON MONOXIDE V. P. Surgutskii and V. V. Serebrennikov We previously noted1 the anomalously low temperatures at which the reduction of sulphates of the rare - earth ele- ments ...
... REDUCTION OF SULPHATES OF THE RARE - EARTH ELEMENTS BY CARBON MONOXIDE V. P. Surgutskii and V. V. Serebrennikov We previously noted1 the anomalously low temperatures at which the reduction of sulphates of the rare - earth ele- ments ...
Trang 18
... reduction of europium sulphate was dissolved in 3 N sulphuric acid solution , and hydrogen sulphide was removed by ... reduction is due to the stepwise nature of the reaction : the reduction to europium ( II ) sulphate ( first stage ) ...
... reduction of europium sulphate was dissolved in 3 N sulphuric acid solution , and hydrogen sulphide was removed by ... reduction is due to the stepwise nature of the reaction : the reduction to europium ( II ) sulphate ( first stage ) ...
Trang 236
... reduction of the rubidium . Eventually we used mixtures with the ratio CaSi2 : RbCl 3. Fig . 1a shows the kinetic curves for the reduction of rubidium chloride at various tempera- tures in the range 600-900 ° and a vacuum of 2 × 10-2 ...
... reduction of the rubidium . Eventually we used mixtures with the ratio CaSi2 : RbCl 3. Fig . 1a shows the kinetic curves for the reduction of rubidium chloride at various tempera- tures in the range 600-900 ° and a vacuum of 2 × 10-2 ...
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acid solutions Akad alcohol alkali aluminium aluminium chloride amine analysis anion aqueous solutions bond boron trichloride boron trifluoride caesium calculated cation Chem chemical Chemistry chloride chromium(II cm-¹ Co(DH cobalt complex composition concentration coordination corresponding crystals curve decomposition decrease dehydration determined diagram diborane diglyme electrode enthalpies of dissolution equilibrium ether addition compound ethylenediamine europium eutectic extracting agent formed g-ion gadolinium germanium dioxide H₂O hafnium heated hydrates hydrochloric acid hydrogen hydroxide increase Inorg ions iron(III isothermal kcal Khim ligands melting metal method mixture mmoles molar mole molecules Moscow MZPC Nauk SSSR Neorg nickel niobium obtained optical density orthosilicate oxide potassium precipitate prepared PtCl pyrophosphate quantity ratio reaction reduction residue rubidium Russ salt shows sodium tetrahydroaluminate solubility solvents studied sulphate Table temperature ternary tetrahydrofuran thermal thiourea tion titration triammine uranium(IV values X-ray Zhur zirconium