potassiumsodiumX-ray diffractionThe interaction of TiN with Na2O–K2O–P2O5melts was investigated at (Na+K)/P molar ratios of 0.9, 1.0, and 1.2 and at Na/K molar ratios of 1.0 and 2.0. Interactions in the system led to the loss of nitrogen and the partial loss of phosphorus and ...
(136) were recovered. These results are attributed to the low nucleophilicity of indole. To confirm the importance of a base, we added potassiumtert-butoxide. Indeed, the reaction smoothly proceeded to provide product15in 72 % yield in the presence of DMAPO (1 mol %) and potassium...
Google Scholar Google Scholar Nikiforov AV, Berg RW, Petrushina IM, Bjerrum NJ (2016) Specific electrical conductivity in molten potassium dihydrogen phosphate KH2PO 2O–CsH2PO4–CsPO3system – a novel electrolyte for water electrolysis at ~225–400 °C. Ionics 24(9):2761–2782.https://doi...
Hantzschreaction;4H-chromenederivatives;potassiumdihydrogenphosphate 中图分类号 TQ25;O621.3+4 文献标识码 A 文章编号 1672-4321(2014)01-0007-04 KH2PO4催化Hantzsch反应合成4日一色烯衍生物 胡晓允,王雪如,单自兴 (1中南民族大学化学与材料科学学院,武汉430074;2武汉大学化学与分子科学学院,武汉430072) ...
phase equilibriumpotassium compounds/ phase relationsphase equilibriumpseudo-quaternary systemslow coolingspontaneous crystallizationcomposition diagramPhase equilibrium in the pseudo-quaternary system K2O–MoO3–P2O5–Bi2O3 was studied as three-component solvent K2MoO4–KPO3–MoO3 containing 15 mol% Bi2O3...
ChemInform Abstract: Phase Relations in the System K2MoO4—KPO3—MoO3 —Bi2O3: A New Phosphate K3Bi5(PO4)6bismuth, Biphosphorus, Ppotassium, Kstructure (solids and liquids)molybdenum, Moequilibriadoi:10.1002/chin.200824018Kateryna V. Terebilenko...
A total of 4 g of graphite powder was added into a solution composed of 2 g of potassium persulfate (K2S2O8) (J. T. Baker, Phillipsburg, NJ, USA), 2 g of phosphorus pentoxide (P2O5) (J. T. Baker, Phillipsburg, NJ, USA), and 30 mL of conc. sulfuric acid (H2SO4). The ...
Figure 10. Pore ion content evolution of MKPC cement paste and mortars (1, 2, and 3M M/P) at 100%RH and isolated curing: (a) phosphates, P; (b) borates, B; (c) magnesium, Mg; and (d) potassium, K. The pH of the liquid pore media was analysed to better understand the ...
The hydrate 2 was isolated from the filtrates when di-n-butyltin dichloride, dimethyltin(IV) dichloride, diphenyltin(IV) dichloride, tri-n-butyltin chloride, or triphenyltin(IV) chloride were used during the reaction. The crystal structures show that coordination of potassium occurs through the ...
The new mineral zincoberaunite, ideally ZnFe(PO)(OH)·6HO, the Zn analogue of beraunite, is found in the Hagendorf South granitic pegmatite, Hagendorf, Bavaria, Germany, in two associations: (1) with potassium feldspar, quartz, jungite, phosphophyllite and mitridatite (the holotype) and ...