1310-73-2Relevant articles and documents
Catalysis and hydrolysis properties of perovskite hydride NaMgH3
Wang,Zhang,Liu,Ouyang,Zhu
, p. S197-S201 (2013)
The addition of NaH by ball milling is shown to greatly improve the hydrogen storage properties and the hydrolysis properties of MgH2, which is related to the formation of ternary hydride NaMgH3 with specific perovskite structure. Th
Kinetic and equilibrium study on formic acid decomposition in relation to the water-gas-shift reaction
Yasaka, Yoshiro,Yoshida, Ken,Wakai, Chihiro,Matubayasi, Nobuyuki,Nakahara, Masaru
, p. 11082 - 11090 (2006)
Kinetics and equilibrium are studied on the hydrothermal decarbonylation and decarboxylation of formic acid, the intermediate of the water-gas-shift (WGS) reaction, in hot water at temperatures of 170-330°C, to understand and control the hydrothermal WGS
Messer, C. E.,Fasolino, L. G.,Thalmayer, C. E.
, p. 4524 - 4526 (1955)
Hanf, N. W.,Sole, M. J.
, p. 3065 - 3074 (1970)
Gilles, P. W.,Margrave, J. L.
, p. 1333 - 1335 (1956)
Busing, W. R.
, p. 933 - 936 (1955)
Halla, F.,Egartner, L.,Weil, R.
, (1948)
Shereshovets, V. V.,Yanbaev, R. K.
, (1988)
Sallinger
, p. 423 - 423 (1927)
Walter, H.
, (1907)
Haga, T.
, p. 240 - 250 (1906)
Jensen,Roiger
, p. 846 (1972)
Klemenc, A.,Gutmann, V.
, (1950)
Heterogeneous kinetics of the uptake of HOBr on solid alkali metal halides at ambient temperature
Mochida,Akimoto,Van Den Bergh,Rossi
, p. 4819 - 4828 (1998)
The heterogeneous reactions of HOBr with solid crystalline NaCl [HOBr(g) + NaCl(s) → BrCl(g) + NaOH-(s)] and KBr [HOBr(g) + KBr(s) → Br2(g) + KOH(s)] substrates at ambient temperature have been investigated using a Teflon coated Knudsen cell reactor. Powder, grain, and spray-deposited salt substrates were used for the measurement of the HOBr reactivity. The observed uptake probability depends on the total external surface area of the salt substrates. For NaCl substrates, Br2 and BrCl are observed as products; for KBr substrates, Br2 is observed as the sole product. In both cases, a dependence of the initial uptake probability γ0 on HOBr flow rate has been observed. The initial uptake is large at low flow rate and 10 times smaller at high flow rate. Values of γ0 ≤ (6.5 ± 2.5) × 10-3 for NaCl and γ0 ≤ 0.18 ± 0.04 for KBr are obtained under our experimental conditions of limiting low flow rates akin to atmospheric conditions. The production of Br2 is observed even for HOBr interacting on solid NaNO3, a non-halogen containing substrate. The yield measurements imply that a HOBr self-reaction occurs on salt surfaces according to 2HOBr → Br2 + H2O + 1/2O2. The decrease in Br2 yield with increasing HOBr flow rate from 100 to 50% indicates that a competition between the heterogeneous reaction of HOBr with NaCl or KBr and the self-reaction of HOBr takes place on the solid salt surface under laboratory experimental conditions. The decrease of γ0 with time indicates that approximately 5-10% of the Br atoms on a KBr surface interact with HOBr.
Abel, E.,Orlicek, A.,Proisl, J.
, (1938)
Soerensen
, p. 639 - 639 (1897)
Kinetics of HOBr uptake on NaBr and NaCl surfaces at varying relative humidity
Chu, Liang T.,Diao, Guowang,Chu, Liang
, p. 5679 - 5688 (2002)
The uptake kinetics of HOBr on NaBr and NaCl particle-film surfaces has been studied in a flow reactor coupled with a differentially pumped quadrupole mass spectrometer. Spray-deposited and aerosol-deposited salt-particle films were used for the measurement of HOBr reactivity. A rapid gas-surface reaction was observed on the NaBr surface at 250 K, and the initial uptake coefficient ?3w was determined to be 0.029 ?± 0.004 and 0.021 ?± 0.004 at relative humidities (RH) of 0.5 and 12.2%, respectively. ?3w is lower at 260 K. For the reaction on NaCl particle surfaces, ?3w decreases slightly from 2.0 ?± 0.3 ?? 10-3 to 8.1 ?± 1.3 ?? 10-4 at 250 K as RH increases from 1.5 to 18.2%. The results are interpreted in terms of the mechanism HOBr(ad) + NaX(s) a?? BrX + NaOH(s), which involves the adsorption of HOBr on the surface, with the reactions occurring mainly on a NaX surface domain without water coverage at low RH. The surface morphology of the particle films was characterized by scanning electron microscopy, and the tortuosity factor, ??, of the NaCl particle film was determined to be 2.18.?3w was corrected for internal surface effects to provide true uptake coefficients ?3t. Typical ?3t values for HOBr on NaBr and NaCl at 250 K and RH of 10% are 2.5 ?? 10-3 and 5 ?? 10-5, respectively. Calculations suggest that the HOBr heterogeneous activation on NaBr may be competitive, if surface regeneration occurs.
Hydrolysis of vanadocene dichloride: A revisit
Honzí?ek, Jan,R??i?ková, Zdeňka,Vinklárek, Jaromír
, p. 39 - 41 (2016)
A key hydrolysis product of vanadocene dichloride was isolated and structurally characterized. The oligomeric character of the species precludes its detection by classical EPR spectroscopic tools. A detailed study of the with high purity reagents disproves appearance of Cp2V(OH)2, which was postulated previously based on mechanistic approach.
Frary,Nietz
, p. 2268 - 2268 (1915)
Raff, L. M.,Iddings, F. A.,Murphy, G. W.
, p. 127 - 131 (1960)
Maxted
, p. 1016 - 1016 (1917)
Plasma-assisted synthesis and properties of Na3N
Vajenine, Grigori V.
, p. 5146 - 5148 (2007)
Dark-blue sodium nitride, Na3N, was prepared by the reaction of metallic sodium or liquid Na-K alloy with plasma-activated nitrogen at low pressure. The compound crystallizes in the cubic anti-ReO3-type structure (space group Pm3m with a = 4.73301(6) A and Z = 1) according to powder and single-crystal X-ray diffraction data. Na3N decomposes above 104°C into the elements, with ΔHf estimated at +64(2) kJ/mol.
PROCESS FOR PRODUCING A LACTIC ACID-AMINE COMPLEX
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Page/Page column 13, (2015/11/03)
A process for the production of a complex of lactic acid and either ammonia or an amine, comprising: a) reacting a stream rich in saccharide with sodium hydroxide to produce a reaction mixture comprising sodium lactate; b) contacting at least a portion of the reaction mixture with ammonia or an amine and with carbon dioxide, or with the carbonate and/or bicarbonate salt of ammonia or an amine, to produce sodium carbonate and/or bicarbonate and a stream rich in said complex; c) reacting at least a portion of the sodium carbonate and/or bicarbonate with an alkaline earth metal hydroxide to produce sodium hydroxide and alkaline earth metal carbonate, wherein the alkaline earth metal is selected from the group consisting of calcium and magnesium; and d) recycling at least a portion of the sodium hydroxide produced in step c) to step a).