Russian Journal of Inorganic Chemistry, Tập 10,Phần 1British Library Lending Division with the cooperation of the Royal Society of Chemistry, 1965 |
Từ bên trong sách
Kết quả 1-3 trong 10
Trang 57
... perrhenate . To obtain anhydrous lanthanum perrhenate the mono- hydrate was dehydrated to constant weight at 200 ° . Found , % : La2O , 18.50 ; Re2O , 81.85 . Calculated for La ( ReO4 ) 3 , % : La2O , 18.31 ; Re20 , 81.69 . Anhydrous ...
... perrhenate . To obtain anhydrous lanthanum perrhenate the mono- hydrate was dehydrated to constant weight at 200 ° . Found , % : La2O , 18.50 ; Re2O , 81.85 . Calculated for La ( ReO4 ) 3 , % : La2O , 18.31 ; Re20 , 81.69 . Anhydrous ...
Trang 58
... perrhenate ( Mg 0.01 , Ca 0.00014 , Al 0.0005 , Si 0.006 , Fe 0.0005 % ) . The ammonium perrhenate was reduced in a tube furnace by hydrogen at 300-350 ° and the rhenium powder compacted in a hydraulic press ( under a pressure of 4.5 tf ...
... perrhenate ( Mg 0.01 , Ca 0.00014 , Al 0.0005 , Si 0.006 , Fe 0.0005 % ) . The ammonium perrhenate was reduced in a tube furnace by hydrogen at 300-350 ° and the rhenium powder compacted in a hydraulic press ( under a pressure of 4.5 tf ...
Trang 59
... perrhenate crystal hydrates were also studied by thermography ( Kurnakov apparatus ) and thermo- gravimetry ( continuous weighing balance ) . Yttrium perrhenate crystal hydrates are colourless , non - hygroscopic , and readily soluble ...
... perrhenate crystal hydrates were also studied by thermography ( Kurnakov apparatus ) and thermo- gravimetry ( continuous weighing balance ) . Yttrium perrhenate crystal hydrates are colourless , non - hygroscopic , and readily soluble ...
Ấn bản in khác - Xem tất cả
Thuật ngữ và cụm từ thông dụng
absorption spectra acid Akad alkali aluminium ammonia ammonium analysis aqueous solutions atoms band beryllium beryllium chloride bromide caesium calculated carbonate cation cerium cerium(IV Chem chemical chloride chromium(III cm-¹ coefficient composition compounds concentration constant crystallisation crystals curve decomposition density determined diagram dissociation EDPA equilibrium experimental extraction fluoride formed gallium H₂O heat capacity hexaborides hydrates hydrochloric acid hydrogen hydrolysis hydroxide increase indium infrared Inorg ionic strength iron(III isotherms K₁ kcal Khim lanthanum ligands liquid lithium melting metal methanol method mixture molar mole molecules Nauk SSSR Neorg niobium nitrate obtained oxalic oxalic acid oxide perchlorate perrhenate phosphate platinum(II plexes potassium precipitate prepared ratio reaction rhenium rubidium Russ ruthenium salicylaldehyde salts samarium shows sodium solid phase solu solubility solvents specimens studied sulphate sulphur Table temperature thallium thermal thermograms thiourea tion values X-ray yttrium Zhur zinc zinc bromide zirconium