摘要: Prodn. of copper oxide-chloride (A; Cu(OH)2.CuCl2.nH2O; n=0-3) comprises treating Cu metal in aq. medium with Na or Ca hypochlorite as oxidising agent at pH3-7. Reaction is pref carried out in presence of Cl2 and/or HCl at 40-80 deg.C....
Discovery of a harmaline-metabolizing enzyme. Harmaline-metabolizing enzyme HarA was found from strain C-4A.aStructure of harmaline.bLC/MS analyses of the reaction product of harmaline. Reaction mixtures containing harmaline and each of a cell-free extract of strain C-4A and purified HarA were inc...
1H NMR spectra were acquired on a Bruker 400 MHz spectrometer in D2O containing 0.125 M sodium deuteroxide to increase hyaluronate proton mobility, thus improving spectra resolution. 1H NMR spectrum displays peaks of methyl NHCOMe at 1.79–1.86 ppm, as well as peaks of methyl groups OMe ...
When diluted, the solution changes its colour to green and then blue. CuCl2 is formed when copper(II) oxide, CuO, is treated with hydrochloric acid, HCl: CuO + 2HCI→CuCl2 + H2O. 2.6 Color/Form Yellow-brown 2.7 Corrosivity It is corrosive to aluminum. 2.8 Decomposition ... WHEN HEATED...
When diluted, the solution changes its colour to green and then blue. CuCl2 is formed when copper(II) oxide, CuO, is treated with hydrochloric acid, HCl: CuO + 2HCI→CuCl2 + H2O. The anhydrous form constitutes yellow to brown monoclinic crystals. It is hygroscopic; forms dihydrate on ...
1.用于通过热化学铜-氯(Cu-Cl)循环产生氢气的方法,所述方法包括步骤:a)使铜与干燥的氯化氢(HCl)接触以形成氯化亚铜(CuCl)和氢气;b)步骤a)的氯化亚铜(CuCl)的电解以产生铜和氯化铜(CuCl<Sub>2</Sub>);c)步骤b)的氯化铜(CuCl<Sub>2</Sub>)的水解以产生氧化铜(CuO)和氯化氢(HCl);d)使氧化铜(CuO)...
·H2O, Probus); graphite oxide (previously synthesized by Hummers method); distilled water; Milli-Q water; sodium borohydride (NaBH4, >98%, Sigma Aldrich); ethylene glycol (>99%, Labkem); sodium sulfite (Na2SO3, 98%, Carlo Erba Reagents); hydrochloric acid (HCl, 37%, Labkem); hydrogen...
(VIII) oxide) for 1 h and 0.1 M PBS (pH 7.0) for 1–2 h. Dehydration was carried out using graded series of ethanol (50%, 70%, 80%, 90%, 95% and 100%) for about 15 to 20 minutes at each step. The samples were filtered and embedded in Spurr’s resin. Ultra-...
Figure 1.Location of the oxide heap in Almalyk mine, Uzbekistan. 2.2. Sample Preparation and Characterization Physicochemical properties of raw ore samples were examined to confirm the presence of Cu-bearing and gangue minerals. The ore samples were crushed to less than 1 cm using a jaw crusher...
Late blight, caused by Phytophthora infestans, is a major potato disease globally, leading to significant economic losses of $6.7 billion. To address this