查询词典 sulfur chloride

Besides, n-butyl and sec-butyl tosylate that are difficult for oxidative addition can react with phenylmagnesium bromide to form corresponding cross-coupling products. Primary alkyl halide which contains β-hydrogen and is relatively hard to undergo the reaction , n-butyl chloride for instance, can react with aryl Grignard reagents in the presence of NiB alloy as well.

此外，难以进行氧化加成的对甲苯磺酸正丁酯和对甲苯磺酸仲丁酯可以与苯基溴化镁作用生成相应的交叉偶联产物；反应相对困难的含β-H的伯卤烷，如：正氯丁烷也可以在NiB催化下与芳基格氏试剂发生偶联。

The effect of impurities in DMDAAC monomer solution, such as NaCl, allyl chloride, allyl alcohol, allyl aldehyde, active carbon, low molecular polymer of DMDAAC, yellow residua, Fe~(3+), Fe~(2+), Cu~(2+), on the polymerization reactivity of preparing PDA with 30％cationicty was researched in this paper.

本文研究了二甲基二烯丙基氯化铵单体溶液中氯化钠、烯丙基氯、烯丙醇、烯丙醛、活性炭、低分子聚合物、黄色物质、Fe~(3+)、Fe~(2+)、Cu~(2+)等杂质对合成阳离子度为30％PDA的聚合反应性能的影响。

The experimental conditions of decoloration disposal for printing and dyeing waste water with Cr~(3+) and litmusless dyes are optimized utilizing chitosan with 70% acetyl removed, aluminum sulphate or polyaluminum chloride for flocculation.

以脱乙酰度为70%的壳聚糖、硫酸铝和聚铝作为絮凝剂对含Cr3+和中性染料的印染废水絮凝脱色进行了处理条件的优化，对试验结果作了对比分析。

Effect of pickling condition on variation of content of sodium chloride in muscle of Sliver carp, soluble protein and amino nitrogen in brine was investigated.

以白鲢为材料，研究了不同腌制条件下鱼肉与盐卤成分的变化及其动力学特性。

CuWO_4·2H_2O/Cu_2WO_4_2 precipitates were first obtained by adding aqua ammonia into a liquor solution containing natrium tungstate and copper chloride, then the solution was heated to remove ammonia.

将该复合粉压坯在H2 气氛中于不同温度下烧结后，对烧结体的微结构和物理、力学性能等进行了测试分析。

Nanosized W-Cu powder containing 20 weight percents of Cu was prepared by a homogeneous coprecipitation process,in which Cu2WO42 / CuWO4·2H2O precipitates were first obtained by adding aqua ammonia into a liquor solution containing natrium tungstate and copper chloride and heating the solution to remove ammonia.

采用蒸氨均相共沉淀法，即加热含有Cu2+和WO42-的氨络合物溶液，使氨蒸发，获得沉淀物，然后对沉淀物进行煅烧、还原，最终制得了含Cu量为20%的W-Cu复合粉。

The technological and engineering problems in recovering calcium chloride from evaporated waste ammonia liquid of ammonia-soda process was analyzed.

文章分析了高海拔地区回收纯碱蒸氨废液中氯化钙遇到的工艺技术和工程化问题，通过试验研究，调整工艺参数并对设备进行适当改造，实现了低成本、高品质生产设计要求。

Reduction photometry of Tin chloride and ammonium molybdate spectrophotometric method is two main methods of the determination of total phosphorus in water.

氯化亚锡还原法和钼酸铵分光光度法是测定水中总磷的两种主要监测方法，本文通过试验分析得出两种方法的最佳显色时间分别是15-30分钟和10-30分钟，且钼酸铵分光光度法的显色较稳定等结论。

In sulfuric acid, ascorbic acid-stannous chloride mixtures of ammonium molybdate Ge Ge reduced molybdenum blue, The maximum absorption wavelength of 805 nm.

在硫酸介质中，抗坏血酸—氯化亚锡混合体系将锗钼酸铵还原成锗钼蓝，其最大吸收波长为805 nm。

300Mg Calcium L-threonate containing 40mg 〓Ca was given to the subjects shortly after intravenous injection of 4mg 〓Ca chloride solution. Urine samples were collected for 48 hours, and purified by precipitation of ammonium oxalate.

研究中，14名受试者在空腹状态下口服〓Ca标记的L-苏糖酸钙咀嚼片（含300mg元素钙，其中〓Ca 40mg），同时静脉注射含有4mg 〓Ca的氯化钙溶液，分段收集给药前和给药后48小时内的全部尿样。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。