Russian Journal of Inorganic Chemistry, Tập 6,Số phát hành 7-12British Library Lending Division with the cooperation of the Royal Society of Chemistry, 1961 |
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Trang 1080
... cristobalite , the intensity of the latter decreasing with increase in temperature ; the maxima due to platinum ( Pt ) are shaded ; 6 ) 1373 ° ( 1370 ° - 1373 ° , 30 min ) ** ; mullite and cristobalite absent ; 7 ) 1300 ° , high ...
... cristobalite , the intensity of the latter decreasing with increase in temperature ; the maxima due to platinum ( Pt ) are shaded ; 6 ) 1373 ° ( 1370 ° - 1373 ° , 30 min ) ** ; mullite and cristobalite absent ; 7 ) 1300 ° , high ...
Trang 1081
... cristobalite , and its isotropy was attributed to submicroscopic crystal- lites 33 . Sinel'nikov 34 showed in a high - temperature X - ray dif- fraction study of its conversion into tridymite that the high- -temperature form of cristobalite ...
... cristobalite , and its isotropy was attributed to submicroscopic crystal- lites 33 . Sinel'nikov 34 showed in a high - temperature X - ray dif- fraction study of its conversion into tridymite that the high- -temperature form of cristobalite ...
Trang 1082
... cristobalite and of cristobalite into tridymite requires at least 0.01 % Na2O . 34,38 The The presence of aluminium oxide has an effect opposite to that of alkali metal oxides . Aluminium oxide reduces the crystallisation of quartz ...
... cristobalite and of cristobalite into tridymite requires at least 0.01 % Na2O . 34,38 The The presence of aluminium oxide has an effect opposite to that of alkali metal oxides . Aluminium oxide reduces the crystallisation of quartz ...
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acid Akad alcohol alkali alloys aluminium ammonia ammonium anion aqueous solution Blagorod bromide cadmium caesium calculated carbonate cerium Chem chemical chloride coefficient complex ion composition concentration copper corresponding cristobalite crystallisation crystals decomposition determined dissociation electrode equilibrium diagram ether ethyl eutectic formation formed gallium glauberite H₂O H₂SO heating curve hydrogen hydroxide increase indium Inorg Inst instability constant ionic strength isotherms K₂SO Khim ligands liquid lithium melting metal method molar ratio molar volumes mole molecules MTPC Na₂SO NaCl Nauk SSSR neodymium Neorg nitrate nitrilotriacetic acid NO₂ Obshch obtained oxide platinum Platiny Drug polyhalite potassium praseodymium precipitate prepared pyridine reaction reagent refractive refractive indices Russ salt saturated shows sodium solid phase solid solutions solubility solvents stability studied sulphate sulphide Table temperature thallium tin selenide tion titanium trans effect uranyl values X-ray Zhur zinc zirconium