查询词典 oxidizing agent

"It is a strong oxidizing agent (see oxidation-reduction), used in fireworks, explosive s, matches, fertilizers, glassmaking, steel tempering, and food curing; as a reagent; and as an oxidizer in solid rocket propellants."

硝石是一种强烈的氧化剂，被用于烟火、炸药、火柴、肥料、玻璃器具制造工业、钢铁回火以及食物保存处理，也被用作试剂和坚固的火箭推进物的氧化剂。

"It is a strong oxidizing agent (see oxidation-reduction), used in fireworks, explosives, matches, fertilizer s, glassmaking, steel tempering, and food curing; as a reagent; and as an oxidizer in solid rocket propellants."

硝石是一种强烈的氧化剂，被用于烟火、炸药、火柴、肥料、玻璃器具制造工业、钢铁回火以及食物保存处理，也被用作试剂和坚固的火箭推进物的氧化剂。

"It is a strong oxidizing agent (see oxidation-reduction), used in fireworks, explosives, matches, fertilizers, glassmaking, steel temper ing, and food curing; as a reagent; and as an oxidizer in solid rocket propellants."

硝石是一种强烈的氧化剂，被用于烟火、炸药、火柴、肥料、玻璃器具制造工业、钢铁回火以及食物保存处理，也被用作试剂和坚固的火箭推进物的氧化剂。

This class production is a white ,crystalline,odourless salt,it is used as initiator for the polymerisation of monomers and as a strong oxidizing agent in many nonhygroscopic. Used in cleaning and pickling of metal surfaces and bleach actiator.

项目产品过硫酸盐均为白色无味晶体，属于二级无机氧化剂，常做强氧化剂使用，也可用作单体聚合引发剂，电子工业电路板的侵蚀剂及纺织印染行业的漂白剂。

Resorcinol was prepared from isophthalic acid through liquid-phase catalytic oxidation and subsequent hydrolysis using oxygen in the air as oxidizing agent in the presence of catalyst copper and promoter manganese.

崔建新；肖如亭(天津理工大学生物与化工学院)摘要：以间苯二甲酸为起始原料，在催化剂铜和助剂镁作用下，以空气中的分子氧作氧化剂，通过液相催化氧化继而水解制得间苯二酚。

Instead of environmentally toxic chromium oxidant, singlet oxygen generated photochemically was used as environmentally friendly and benign oxidizing agent to accomplish the transformation of pseudodiosgenin diacetate to diosone efficiently in a low toxic and less expensive solvent acetone.

裂解薯蓣皂甙元所得的假薯蓣皂甙元，在低毒且廉价的丙酮溶剂中，在光敏剂和光的存在下，与氧气反应，得到的产物再经酸解消除反应得到合成其它多种甾族药物的重要前体16-脱氢孕烯醇酮醋酸酯。

The synthetic route starts from penicillin G, peroxyacetic acid(8.5%) as Oxidizing Agent to get penicillin G sulfoxide; esterifided with p-nitrobenzyl bromine to synthesize penicillin G sulfoxide ester; we synthesize 3-exomethylenecepham sulfoxide ester with phthalimide potassium and 4A molecular sieve as acid scavenger to open the ring, SnCl_4 as catalyzation to close the ring. The yield is over 60%.

本研究采用的合成路线为：以青霉素G钾盐为原料，选用工业过氧化氢制备的过氧乙酸(22.3%)稀释至8.5%为氧化剂，氧化得青霉素亚砜；采用对硝基溴苄为酯化试剂，制备青霉素亚砜酯；以NCP(N-氯代邻苯二甲酰亚胺)为开环试剂，酞酰亚胺钾和4A型分子筛为酸清除剂，顺利开环；再经无水SnCl_4催化闭环得3-环外亚甲基头孢亚砜酯，最终产率在60%以上。

The samples were fused with mixed flux of Li2B4O7 and LiBO2 (67∶33). The homogeneous cobalt glass powder was prepared with CoO3 and used as internal standard to improve the accuracy and precision. LiNO3 was added as oxidizing agent to prevent sulfur from volatilization during fusion.

以Li2B4O7和LiBO2（质量比67∶33）的混合熔剂熔融制样，将测量全铁量的内标Co2O3制备成均匀的Co玻璃粉，大大提高全铁量的测量准确度和精密度；加入LiNO3为氧化剂，解决了硫元素在制样过程中容易挥发的问题。

To find an improved conjugation method, our laboratory has developed a novel way to conjugate aldoses by amide-linkage with amine compounds via oxidative amidation using iodine as the appropriate oxidizing agent.

为了寻找可替代及改善连结之方法，我们实验室开发新的连接方法，利用碘促进醛醣氧化并与胺类化合物形成醯胺键。

The materials are gold mine of low sulfur content, calcine or gold contain abatement. Cyanogens lixiviant is alkaline thiourea, stabilizer is sodium sulphite or sodium silicate, they constitute high stability alkaline thiourea system, and bland oxidizing agent is potassium ferricyanide with moderate electric potential during sunking process.

本发明以低硫含量的金矿、焙砂或含金废料为原料，以碱性硫脲为无毒的代氰浸出剂，以亚硫酸钠或硅酸钠为稳定剂，组成高稳定性碱性硫脲体系，浸出过程中以具有适中电势的铁氰化钾为温和氧化剂。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。