查询词典 molybdate

The results show that the technical parameters and the concentration of sodium molybdate have obvious effect on the composition of the alloy. The crystal grain size is from 6.2 to 12.7 nm and changes with current density, temperature and the pH value of the electrolyte.The crystalline growth of the alloy accords with the model of three-dimensional growth. The surface morphology is mainly determined by the rate competitions between the growing direction of vertical surface and the expanding direction along the surface towards circumambient. The results of the X-ray data show the presence of the multiphase containing solid solution and intermetallic compound in the deposits. The deposit phases alter from the FeNi and FeMo solid solution to the FeNi and MoNi4structure at 3 A/dm2. The deposits internal stress increases linearly with the decrease of the grain size. The lattice parameter of the deposits are slightly distorted

结果表明：工艺条件和钼酸钠浓度对合金组成的影响较大；所得合金晶粒尺寸为6.2~12.7 nm，并随电流密度、温度和电镀液的pH值的改变而变化；合金的晶体生长符合晶核三维生长模型，镀层表面形貌由平行和垂直于基体的生长速度的相对大小决定；镀层物相为固溶体和金属间化合物的多相结构，当电流密度为3 A/dm2时，镀层物相由FeNi和FeMo固溶相转化为FeNi和

A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a dry-in-place aqueous acidic liquid comprising: a component of anions, each of said anions consisting of at least four fluorine atoms and at least one atom of an element selected from the group consisting of titanium, zirconium, hafnium, silicon, and boron, and, optionally, ionizable hydrogen atoms, and optionally, one or more oxygen atoms; a component of cations of elements selected from the group consisting of cobalt, magnesium, manganese, zinc, nickel, tin, zirconium, iron, and copper; the ratio of the total number of cations of this component to the total number of anions of component being at least 1:5; sufficient free acid to give the composition a pH in the range from 0.5 to 5.0; a component selected from the group consisting of phosphorus-containing inorganic oxyanions and phosphonate anions; and a component selected from the group consisting of water-soluble and water-dispersible organic polymers and polymer-forming resins and, preferably, also including a component selected from the group consisting of tungstate, molybdate, silicotungstate, and silicomolybdate anions.

通过对包含以下成分的含水酸性液体进行干燥，可以在金属上形成无铬的转换涂层，该涂层与普通铬酸盐转换涂层相比，至少在抗腐蚀质量上等效：$_一种阴离子成分，所述各个阴离子包括至少4个氟原子，至少选自钛、锆、铪、硅与硼元素中的1个原子。任选地可离解的氢原子，任选地1个或多个氧原子；$_一种选自钴、镁、锰、锌、镍、锡、锆、铁与铜元素的阳离子成分，上述成分的阳离子总数与成分内的阴离子总数之比至少为1∶5；$_足够的游离酸以使该组合物的pH值在0.5～5.0的范围内；$_一种选自含磷的无机含氧阴离子与膦酸盐阴离子的成分；$一种选自水溶性与水可分散性有机聚合物与聚合物形成的树脂的成分，优选还包括一种选自钨酸盐、钼酸盐、钨硅酸盐与钼硅酸盐阴离子的成分。

Reagents: The chemicals used in this work were, ammonium molybdate, diammonium monohy-drogen phosphate,ascorbic acid,ammonium metavanadate,.zine powder and sodium hydroxide,etc.

Reagents ：所使用的化学品这项工作，钼酸铵，二铵monohy激素磷酸盐，抗坏血酸，铵偏，。

The results indicate that the size and morphology of as-prepared molybdic acid aggregates and annealed products-α-MoO3 powder were affected by the concentration of ammonium molybdate, HAc and CTAB.

结果表明，钼酸铵的浓度、醋酸和CTAB对多钼酸聚集体及其烧结后形成MoO3粉体的形貌和尺寸有影响。

Molybdic acid aggregates were prepared by the reaction of ammonium molybdate with HNO3 and HCl in a coexisting HAc or cetyl-trimethyl ammonium bromide solution, respectively.

钼酸铵在醋酸和十六烷基三甲基溴化铵调节下分别与硝酸和盐酸反应制备了多钼酸聚集体。

The molybdic acid aggregates with diameter of 1--2μm and length of several decades-micron can be obtained by the reaction of higher-concentration ammonium molybdate with HNO3 in a coexisting HAc or CTAB solution, repectively.

较高浓度的钼酸铵分别在醋酸和CTAB调节下与硝酸反应均可制备直径为1~2μm，长为数十微米的细长晶须，经过500~600℃烧结后则相应变为纳米级片状和颗粒状α-MoO3粉体；低浓度的钼酸铵在CTAB调节下与盐酸反应可制备不规则的晶体棒，经过烧结后得到颗粒状α-MoO3粉体。

Molybdic acid aggregates were prepared by the reaction of ammonium molybdate with HNO_3 and HCl in a coexisting HAc or cetyl-trimethyl ammonium bromide solution,respec- tively.

钼酸铵在醋酸和十六烷基三甲基溴化铵调节下分别与硝酸和盐酸反应制备了多钼酸聚集体。

Also, the corrosion performances and electrochemical behaviors of the phosphated/molybdate post-sealed HDG steel sheet in 5% NaCl solution were investigated, using Tafel polarization and electrochemical impedance spectroscopy measurements.

将热镀锌钢板先磷化再用钼酸盐溶液进行封闭后处理，通过塔菲尔极化和电化学阻抗测量研究其在5%NaCl水溶液中的腐蚀电化学行为，并与单磷化的热镀锌钢板进行了对比。

The results of color reaction of zirconia with ammonium molybdate indicate that, in both cases, DDPA adsorbed on zirconia via the combination of one phosphonic group with zirconia, and another phosphonic group was free.

通过磷的显色反应发现，DDPA只以1个膦酸基团与氧化锆结合，而另一个膦酸基团则处于游离状态。

The invention provides a foliar fertilizer specially used for Chinese gooseberries, which has the functions of cold resistance and consists of the following raw materials according to weight percentage: 0.1 to 8 percent of DMSO, 0.05 to 5 percent of trimethylene glycol, 0.05 to 5 percent of salicylic acid, 0.05 to 2 percent of compound ammonium nitrate, 1 to 15 percent of humic acid, 0.5 to 10 percent of chitosan, 1 to 10 percent of citric acid, 2 to 15 percent of urea, 1 to 10 percent of borax, 1 to 20 percent of zinc sulfate, 0.5 to 10 percent of ferrous sulfate, 0.05 to 5 percent of ammonium molybdate, 1 to 15 percent of manganese sulfate, 0.1 to 2 percent of SDBS and 35 to 80 percent of water.

本发明提供一种具有抗寒作用的猕猴桃专用叶面肥，它由下述各组分重量百分比的原料组成：二甲基亚砜0.1％～8％、丙二醇0.05％～5％、水杨酸0.05％～5％、复硝铵0.05％～2％、腐殖酸1％～15％、壳聚糖0.5％～10％、柠檬酸1％～10％、尿素2％～15％、硼砂1％～10％、硫酸锌1％～20％、硫酸亚铁0.5％～10％、钼酸铵0.05％～5％、硫酸锰1％～15％、十二烷基苯磺酸钠 0.1％～2％、水35％～80％。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。