查询词典 hydroxide

The process quality and using result of high purity barium carbonate prepared with barium hydroxide have been introduced.

介绍八水氢氧化钡制取高纯碳酸钡的工艺、产品质量及用户使用结果。

Using barium hydroxide octahydrate and urea as raw material,barium carbonate is prepared by homogeneous precipitation method.

以八水氢氧化钡和尿素为原料，采用均相沉淀法制备了碳酸钡粉体。

The catalysts were made up of a kind of tertiary amine and a small amount of barium hydroxide.

通过理论分析和实验总结，研究了不同种类的碱性催化剂对酚醛树脂水溶性的影响，最后确定同时使用某种叔胺类化合物和少量氢氧化钡作为合成水溶性酚醛树脂的催化剂。

The effects of synthesis temperature on the lattice parameter,the crystallite size and the content of CO2-3 of the prepared samples,the effects of the concentration of reactants on the particle size and morphology,and the effects of the molar ratio of barium hydroxide to tetrabutyl titanate on the molar ratio of bar...

研究了合成温度对样品的晶胞参数、晶粒大小和CO32-含量的影响；反应物浓度对样品的颗粒大小和形貌的影响；氢氧化钡与钛酸四丁酯的摩尔比对样品中钡钛摩尔比的影响。

The melting temperatures were found to be 71℃ for aluminum nitrate enneahydrate and 76℃ for barium hydroxide octahydrate, respectively. The measured temperature of fusion agreed with the data in literature.

但这些无机水合物在不同温度下的导热系数未见系统报道，为此，本文测定了一系列熔化热大于150 kJkg-1、熔点低于100℃的无机水合物在10℃~80℃温度范围的导

In this paper, use castor oil as raw material, barium hydroxide as a heterogeneous base catalyst to product biodiesel through transesterification was studied.

本文研究了以蓖麻油为原料，用氢氧化钡作为非均相碱催化剂，酯交换反应制备生物柴油。

Aluminum nitrate enneahydrate and barium hydroxide octahydrate are considered as potential phase change materials for energy storage.

用热敏电阻作加热元件和测温元件，首次测定了适合用作相变储能材料的九水合硝酸铝、八水合氢氧化钡导热系数的测定在10℃~80℃温度范围的导热系数，其实验值的不准确度分别为2.8%和3.2%。

Analytical methods such as exploration and confirmation, another long-term production company also eight water barium hydroxide, sodium bisulfate, etc., and annual distribution of various chemical raw materials, product quality reliable, reputable!

分析方法的探索和确认等，另外公司还长期生产八水氢氧化钡，硫酸氢钠等产品，并且常年经销各种化工原料，产品质量可靠，信誉良好！

The process for co-producing calcium hydroxide and high-pure barium chloride from barium chloride waste liquor and the main affecting factors were studied.

讨论了氯化钡废液联产氢氧化钙及高纯氯化钡的方法和主要影响因素。

The results show that the castor oil with barium hydroxide as catalyst in the transesterification reaction in the appropriate conditions: methanol to oil molar ratio of 6:1, 10:1, catalyst amount, reaction time 90 min

结果表明，蓖麻油在以氢氧化钡为催化剂的酯交换反应中适宜条件为：醇油摩尔比6：1，催化剂量10：1，反应时间90 min 不要翻译软件的！追加50！

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。