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The kinetic parameters of vanadium catalytic oxidation of azomethine H by bromate have been determined by using spectrophotometric method .
以酸性介质中痕量钒催化溴酸钾氧化甲亚胺 H显色反应为对象，利用光度法研究了反应的动力学参数。
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Usually it turns into emerald at the time of chromium oxide or vanadium oxide, while aquamarine is formed due to the coloring of ferrous oxide, it becomes verobieffite due to the existence of magnesium, while heliodor is formed due to the coloring of iron oxide.
在存在氧化铬或氧化钒时通常就成了祖母绿，而海蓝宝石则是由于氧化亚铁着色而成的。成为铯绿柱石是由于镁的存在，而金绿柱石则是因氧化铁着色而成的。
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In acidic medium,ammonium vanadate and ammonium molybdate are added,which,with phosphorous acid,form yellow ternary acid of phosphor,vanadium and molybdenum,by which the content of phosphor can be determined.
试样经盐硝混合酸溶解，以过氧化氢将亚磷酸氧化成正磷酸，在酸性介质中，加入钒酸铵和钼酸铵与磷酸形成黄色的磷钒钼三元杂多酸，从而进行磷的测定。
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The ligand of the chiral Schiff base and acetylacetone vanadium are subjected to complexation in situ, hydrogen peroxide is taken as an oxidant, aryl alkyl thioether asymmetric oxidation reaction is catalyzed in a toluene or dichloromethane solution under low temperature or room temperature, enantioselectivity of chiral sulphoxide is 72 percent to 95 percent ee, and yield is 42 percent to 83 percent.
将上述手性西佛碱配体与乙酰丙酮氧钒原位络合，采用双氧水为氧化剂，在甲苯或二氯甲烷溶液中低温至室温下催化芳基烷基硫醚不对称氧化反应，手性亚砜的对映选择性为72％-95％ee，产率为42％-83％。
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The electroactive species Fe2+ can be transported easily through the thin films of KVFe6 to the underlaying glassy C electrode surface to be oxidized directly at less pos. potential, and it can also be oxidized at the film at more pos. potential by means of redox sites in the film.
电活性质点Fe^3^+可穿透六氰亚铁钒薄膜在玻璃碳基体电极表面于较负电位处直接氧化，也可经VHF膜中氧化还原点位的媒介在较正电位处理膜-溶液界面及膜内部发生催化氧化。
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Phosphorus in the sample reacts with the vanadomolybdate/ammonium molybdate reagent and a bright yellow colour is formed.
样品中的磷与钼酸亚钒/钼酸铵反应形成亮黄色。
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First, pure aluminium (Al2O3) is extracted from bauxite almost exclusively by the Bayer process.
铝钒土最大最著名的储量是在澳大利亚北部、圭那亚和巴西发现的。
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Since the syntheses of vanadium phophitesin the presence of piperazinium cation as structural director by Zubieta et al., thegreat interest in the synthesis of new transition metal phosphites has been aroused.
自从 Zubieta 实验小组以哌嗪分子作为结构导向剂合成了第一个亚磷酸钒化合物之后，过渡金属亚磷酸盐化合物的合成引起了人们极大的兴趣。
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ferrous：亚铁的
ferrous sulphate 硫酸亚铁 | ferrous 亚铁的 | ferrovanadium 钒铁
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zoisite：帘石
丹泉石属於黝帘石 (Zoisite) 的一个变种,丹泉石是因为含有钒而产生如蓝宝石般的亮丽蓝色,西元1967年,一位印度的采矿者,在坦尚尼亚采矿时,偶然发现了这种美丽色彩的宝石,因此又被称你坦尚尼亚宝石.
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eutaxic：层状的(矿床)
真鳄亚目 Eusuchia | 钒铅锌矿 eusynchite | 层状的(矿床) eutaxic
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vanadous：亚钒的
valence shell 价<电子>层 | vanadous 亚钒的 | vanadyl sulphate 硫酸氧钒