铵由氮和氢合成 ammonia is composed of nitrogen and hydrogen; ammoniaiscomposedofnitrogenandhydrogen
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例句与用法
The effect of molecular deposition filming flooding agent and quaternary ammonium salts on wettability of oil reservoir minerals 膜驱剂与季铵盐对油藏矿物润湿性的影响
Testing of leather ; determination of the contents of total nitrogen and of ammonium salts , calculation of hide substance 皮革的检验.总含氮量和铵盐含量的测定.皮革材料的计
Preparation and characterization of ultrathin ordered molecular deposition films of wo3 and bis - quarternary ammonium salt 三氧化钨与双季铵盐超薄有序分子沉积膜的制备及其结构研究
Preparation of insoluble quaternary ammonium bactericides by cross linked polystyrene carried bactericidal functional groups 交联聚苯乙烯树脂固载杀菌活性官能团制备季铵盐类杀菌剂
Excellent selectivity in alkyl transfer was noted in the sequence of phch2 > primary alkyl > secondary alkyl 季铵盐中烷基的转移具有较好的选择性,其优先顺序为:苄基伯烷基仲烷基。
A study was made of the properties of nr and the effect that natural rubber latex was conserved with feeble - acid - ammonium salt 摘要通过对弱酸铵盐性质的分析,探索弱酸铵盐对鲜天然胶乳的保存效果及其性能的影响。
O - or n - alkylation was carried out directly by simple heating the mixture of carboxylic acid or amine with quaternary ammonium salt 将羧酸或胺类化合物与季铵盐进行简单的混合加热,便可直接得到o -或n -烷基化产物。
The preparation methods of quaternary ammonium salt of chitosan at home and abroad , meanwhile were introduced , and heir advantages and shortcomings were compared 摘要对目前国内外壳聚糖季铵盐的制备方法加以介绍,并比较了它们的优缺点。
( 2 ) xrd analysis showed that better intercalation effect could be obtained by adopting ammonium ion with longer molecule length , solvent method and high density polyethylene ( 2 ) xrd测试显示,采用长链季铵盐、溶液法和高密度聚乙烯可获得较好的插层效果。
In this thesis , the blends of different organic amines or ammonium and unsaturated organic amine were used to modified montmorillonite to prepare organic montmorillonite 采用了不同的有机胺和铵盐与不饱和有机胺的混合物作为插层剂对蒙脱土进行有机化处理,制备有机蒙脱土。