Results 201 to 210 of about 7,198 (242)
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Alkali Blues: Blue‐Emissive Alkali Metal Pyrrolates
Chemistry – A European Journal, 2019Abstract2‐Iminopyrroles [HtBuL, 4‐tert‐butyl phenyl(pyrrol‐2‐ylmethylene)amine] are non‐fluorescent π systems. However, they display blue fluorescence after deprotonation with alkali metal bases in the solid state and in solution at room temperature. In the solid state, the alkali metal 2‐imino pyrrolates, M(tBuL), aggregate to dimers, [M(tBuL)(NCR)]2 (
Oliver Back +3 more
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Effect of the inherent alkalis of alkali activated slag on the risk of alkali silica reaction
Cement and Concrete Research, 2017Abstract Alkali silica reaction (ASR) occurred in the alkali activated slag (AAS) concrete was evaluated by a revised mortar prism method. The mortars were made of blast furnace slags activated by alkali silicate solution possessing different modulus (0.5, 0.75, 1 and 2) as well as cations (sodium and potassium) and standard sand with a volume ...
Ricarda Tänzer, Yu Jin, Dietmar Stephan
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Azidoaurates of the Alkali Metals
Zeitschrift für anorganische und allgemeine Chemie, 2006AbstractSynthesis, crystal structure as well as IR‐ and Raman‐spectroscopic properties of the new ternary azidoaurates(III) A[Au(N3)4] (A = K, Rb, Cs) are reported. The translucent orange‐red compounds were prepared by reaction of the respective binary azides with HAuCl4 in aqueous solutions at room temperature.
Afyon, S. +6 more
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The locations of alkali cations in alkali-metal–fullerides
Physica B: Condensed Matter, 2000Abstract We study the locations of alkali cations in alkali-metal–fullerides by calculating the interaction between alkali cations and C60 molecules, which consists of short-range interatomic (ionic) potentials and long-range Coulomb interaction. It is shown that the octahedrally coordinated alkali cations shift away from the center along the 〈1 1 1〉
X.H Chen, J.C Peng, W.Z Li
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Forensic Science International, 1995
A case is reported of a worker in an aluminium plant who was found lying in a shallow pool of concentrated caustic solution, which had been heated to approximately 95 degrees C. He had been employed to operate a pump draining a sump. A pressurised ruptured airline lay nearby, this being the likely precipitating cause of an alkaline spray. The spray led
K A, Lee, K, Opeskin
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A case is reported of a worker in an aluminium plant who was found lying in a shallow pool of concentrated caustic solution, which had been heated to approximately 95 degrees C. He had been employed to operate a pump draining a sump. A pressurised ruptured airline lay nearby, this being the likely precipitating cause of an alkaline spray. The spray led
K A, Lee, K, Opeskin
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2004
Abstract For multi-electron atoms we cannot solve the Hamiltonian analytically, but by making appropriate approximations we can explain their structure in a physically meaningful way. To do this, we start by considering the elementary ideas of atomic structure underlying the periodic table of the elements.
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Abstract For multi-electron atoms we cannot solve the Hamiltonian analytically, but by making appropriate approximations we can explain their structure in a physically meaningful way. To do this, we start by considering the elementary ideas of atomic structure underlying the periodic table of the elements.
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Heat of mixing of equiatomic alkali-alkali alloys
Journal of Physics F: Metal Physics, 1980The Gibbs-Bogoliubov variational technique is used to study the internal energy and entropy of liquid alkali metals as well as heat of mixing and excess entropy of mixing for equiatomic NaK, KRb and NaCs alloys. A Heine-Abarenkov-type model potential has been considered with Hartree, Hubbard-Sham and Vashishta-Singwi exchange and correlation functions.
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Alkali Silica Reaction Processes: The Conversion of Cement Alkalies to Alkali Hydroxide
SP-131: Durability of Concrete--G.M. Idorn International Symposium, 1992openaire +1 more source
THE MECHANISM OF THE EFFECT OF ACIDS AND ALKALIES ON THE DIGESTION OF PROTEINS BY PEPSIN OR TRYPSIN
Journal of General Physiology, 1923J H Northrop, Northrop John H
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