British Abstracts: Pure chemistry and physiology. ser. A1940 |
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... heated . MgO and BF , react thus : 3MgO + 3BF3 = 3MgF2 + ( BOF ) ; a similar reaction proceeds less readily with CaŎ . BF , can displace the weak SiO2 from silicates and the displaced oxide is volatilised as SiF At higher temp . BF ...
... heated . MgO and BF , react thus : 3MgO + 3BF3 = 3MgF2 + ( BOF ) ; a similar reaction proceeds less readily with CaŎ . BF , can displace the weak SiO2 from silicates and the displaced oxide is volatilised as SiF At higher temp . BF ...
Trang 366
... heated MnO2 to yield CH2O . L. S. T. New mechanism for the action of the vanadium pentoxide - silica - alkali pyrosulphate catalyst for the oxidation of sulphur dioxide . J. H. FRAZER and W. J. KIRKPATRICK ( J. Amer . Chem . Soc ...
... heated MnO2 to yield CH2O . L. S. T. New mechanism for the action of the vanadium pentoxide - silica - alkali pyrosulphate catalyst for the oxidation of sulphur dioxide . J. H. FRAZER and W. J. KIRKPATRICK ( J. Amer . Chem . Soc ...
Trang 328
... heated at 305-315 ° in N2 or dry distilled with Cu yields 4 : 4 ' - dimethoxystilbene , whilst ( IV ) heated with p - OMe CH4 CH2 CO2H gives a substance , C18H1605 ( ? ) , m.p. 174 ° , possibly 6 : 8 - dimethoxy - 3- p - anisylcoumarin ...
... heated at 305-315 ° in N2 or dry distilled with Cu yields 4 : 4 ' - dimethoxystilbene , whilst ( IV ) heated with p - OMe CH4 CH2 CO2H gives a substance , C18H1605 ( ? ) , m.p. 174 ° , possibly 6 : 8 - dimethoxy - 3- p - anisylcoumarin ...
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EXPERIMENTAL PHYSIOLOGY | |
1940 | 1 |
CHEMISTRY AND RELATED SUBJECTS | |
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absorption absorption spectra Acad acid activation energy activity adsorbed alkali alloys Amer Anal analysis approx ation atoms Atti X Congr bands calc catalyst CCl4 Chem chemical Chim chloride CO₂ coeff colloidal compounds Compt concn const crystals curves decomp decreases described determined deuterons diffusion discussed dissociation effect electrolytes electron emission energy equation equilibrium EtOH Faraday Soc ferromagnetic film formation gases H₂ H₂O heat hydrogen hydrolysis increases intensity ionisation ions isotopes kg.-cal lattice layer liquid magnetic Me.v measured meson mesotrons metals method mixtures N₂ neutrons obtained oxidation paramagnetic particles phase Phys Physical Rev polarisation potential pptd pressure Proc protons Raman reaction rend Russ salts SiO2 solid solid solution solubility solutions solvent spectra spectrum structure surface temp theory thermal titration Trans vals vapour velocity viscosity X-ray