查询词典 sodium

The object of study was orchard limy soils in Qin'an County of Gansu Province,a laboratory simulant experiment was carried out to probe into the effects of three sodic salinity(NaHCO3,NaAc,NaCl)on limy soil salinization characteristic(soil total salt,pH,water-solubility sodium,exchangeable sodium).

以甘肃省秦安县果园石灰性土壤为研究对象，利用室内模拟的方法，探讨了三种钠盐(NaHCO3、NaAc和NaCl)对石灰性土壤盐化特性(全盐、pH、水溶性Na+和交换性Na+)的影响。

Methods Mouse were smoking twice everyday in a self-made passive smoking cabinet, medicative group mouse were given respectively with sodium selenite, vitamin E, sodium selenite and vitamin E for 35 days.

方法小鼠置于自制被动吸烟箱中，每日吸烟两次，用药组小鼠分别给予亚硒酸钠、维生素E、亚硒酸钠和维生素E灌胃，连续35d。

According to the thermodynamics,it was discussed the possibility of reduction of sodium metaborate to produce sodium borohydride.

首先从热力学角度讨论偏硼酸钠还原生成硼氢化钠的反应；根据吉布斯函数，讨论反应进行的必要条件。

According to the thermodynamics , the value of enthalpy, entropy, Gibbs free enthalpy, it was discussed the possibility of reduction of sodium metaborate to produce sodium borohydride.

本文从反应焓、反应熵以及吉布斯自由能等热力学函数，分别讨论了由偏硼酸钠还原制备硼氢化钠反应的可能性。

A method for removing sulfur compounds from gasoline was investigated involving the conversion of sodium metaborate to sodium borohydride by electrochemistry deoxidation and the incorporation of a kind of metal compounds.

研究了利用电化学方法将偏硼酸钠还原成硼氢化钠，并加入一种金属化合物，用于汽油脱硫的方法。

Sodium borohydride ; sodium metaborate ; electrochemical reduction ; cyclic voltammetry

硼氢化钠；偏硼酸钠；电化学还原；循环伏安法

Pulp mills can use partial borate autocausticizing to increase their causticizing capacity or reduce energy intensity by adding sodium metaborate to the liquor cycle which drives autocausticizing reactions in the recovery boiler and forms sodium hydroxide in the smelt dissolving tank without the use of lime or additional causticizing processes.

纸浆厂可以利用硼酸盐自动苛性微粒来提高他们的苛性化能力或是通过在循环液中增加驱动回收炉中的自动苛性化反应和在冶炼溶解池中形成氢氧化钠而不使用石灰和额外的苛性处理的硼酸钠来减少能源的强度。

The hydrogen precipitation of different metals, platinum, lead, nickel, iron and titanium, were discussed in different pH value and current density. By using Cyclic Voltammetry to study the reduction reaction, copper, titanium, lead, Ti/PbO2 and Ti/MnO2 as cathode respectively, it is proved that sodium metaborate can be electrochemically reduced to sodium borohydride. The kinetic parameters and fractal dimension of these electrode, graphite, lead iron Ti/PbO2 and Ti/MnOa etc, will be researched.

采用循环伏安法，分别以铜、钛、铅、钛、Ti／PbO_2和Ti／MnO_2作为阴极，对该反应进行实验研究，证实了偏硼酸钠电化学还原制各硼氢化钠的可能性；分别对石墨、铅、铁、Ti／PbO_2和Ti／MnO_2等电极在本实验体系中的电极动力学参数(a，b，i_0)及分形维数进行了讨论，认为Ti／PbO_2为该体系中的最佳电极材太原理工大学硕士研究生学位论文料。

The Shandong Lianchuang chemical limited company is the domestic main sodium metasilicate manufacturer, year to year devotes to the sodium metasilicate research and development production.

沂水联创化学有限公司是国内主要的偏硅酸钠生产厂家，常年致力于偏硅酸钠的研发生产。

By means of molecular designing, a series of sodium branched-alkyl benzene sulfonates weresynthesized through seven process, involving Frieded-Crafts reaction, Grignard reaction, sulfonationand neutralization. Those isomers have similar structure, carbons of same quantity, but the position ofalkylaryl dissimilarity. Liner fat acid, metaxylene and halogenated hydrocarbon of different carbonnumber were used as the starting materials. Optimum processing condition was confirmed consideringinfluence of a series of reaction factors such as feed proportioning, quantity of catalysts, quantitysolvent, reaction time, temperature and pressure. Eight kinds of isomers of sodium hexadecylxylolsulfonates were finally synthesized, and characterized by FT-IR.

本文通过分子设计，以不同碳数直链脂肪酸、间二甲苯以及不同碳数的卤代烷为原料，经酰基化、格氏反应、加氢还原、磺化及中和等反应，合成了结构相似、烷烃链碳数一定、芳基在烷烃链不同位置的烷基芳基磺酸盐同分异构体；并考察了原料配比、催化剂用量、反应时间、反应温度、溶剂用量、反应压力等一系列因素对各反应的影响，进而确定最佳工艺条件，最终合成出十六烷基二甲苯磺酸钠的八种同分异构体，利用 FT-IR 对产物结构进行了分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。