1.1. The stationary potentials of zinc electrode in potassium hydroxide solutions (from 0.2 N to saturated solution) have been measured. When the concentration of potassium hydroxide is greater than 1 N, the φ_c～logaαкон plot shows a linear relation, the slope of which is found to be-59 mv.
1.?y定?电极在?溲趸??溶液(从0.2N到?和溶液)中自动溶解的稳定电位,找出当碱浓度大于～1N时,φc～log α_(KOH)具?性关系,其斜率为—59毫伏特。
2.Definition : Soft Soap is soap made by the interaction of potassium hydroxide or sodium hydroxide with a suitable vegetable oil or oils or with fatty acids derived therefrom.
定义:软皂是一种由氢氧化钾或氢氧化钠和适合的植物油或油或其生产的脂肪酸作用生成的肥皂。
4.2,4-Dinitrophenolbenzylether was synthesized from 2,4-dinitrophenol,potassium hydroxide and benzyl chloride under microwave irradiation using potassium iodide as catalyst and Carbowax 200 as solvent.
在微波辐射下,以2,4-二硝基酚、KOH和氯化苄为原料,KI为催化剂,聚乙二醇200为溶剂合成了标题化合物。
5.It is found that the use of chromosorb WAW (60 ~ 80 mesh) as supporter, potassium hydroxide as tailing reducer and carbowax 20M as stationary liquid proved to be satisfactory. A nice separation of piperazine and its coproducts is obtained on a glass packed column of 1. 5m length.
采用Chromsorb WAW（60～80目）为担体,以氢氧化钾作减尾剂,聚乙二醇（PEG 2万）作固定液,在长 1.5m的玻璃填充柱上哌嗪及其共生物得到良好的分离。
6.This paper reports that 3-benzyl-4-amino - 5-mercapto-1,2,4-triazole reacted with ethylene dichloride or ethylene dibrom ide in potassium hydroxide-anhydrous alcohol solution,yielding a new compound 3-benzyl-6,7- dihydro-5H-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazine, whose structure was established on the basis of elemental analysis, ~1H NMR,and ~(13)C NMR spe ctra.
本文报道了 3 苄基 4 氨基 5 巯基 1,2 ,4 三唑与 1,2 二氯乙烷或 1,2 二溴乙烷在氢氧化钾 乙醇溶 液中反应 ,合成新化合物 3 苄基 6,7 二氢 5H 1,2 ,4 三唑并 [3 ,4 b] 1,3 ,4 噻二嗪 . 化合物结构由核磁共振氢谱、碳谱与元素分析确定 .
7.With the piperidine as catalyst, p-hydroxybenzaldehyde condensed with 2,4-thiazolidinedione to give 5-(4- hydroxybenzylidene)thiazolidine-2,4-dione, which was reduced by hydrogen/Pd-C to afford 5-(4-hydroxybenzyl)~thiazolidine- 2,4-dione. The dione subsequently reacted with potassium hydroxide and 2-(5-ethyl-2-pyridyl)ethyl sulfonate to produce pioglitazone, and finally with hydrochloride acid to obtain the hydrochloride salt.
在六氢吡啶作用下 ,对羟基苯甲醛和 2 ,4 噻唑烷二酮缩合生成5 [( 4 羟苯基 )亚甲基 ] 2 ,4 噻唑烷二酮 ,经钯炭催化氢化还原生成 5 [( 4 羟苯基 )甲基 ] 2 ,4 噻唑烷二酮 ,再和氢氧化钾反应生成相应的钾盐 ,然后与 5 乙基 2 羟乙基吡啶和甲基磺酰氯反应得到的磺酸酯作用生成吡格列酮 ,最后用盐酸酸化得到其盐酸盐 .
8.The Cl - is dissociated from florfenicol which is heated and refluxed in alkaline circumstance. Dissolve the sample in alcohol, add 20ml of 50% potassium hydroxide solution, heat and reflux for 4 hours, cool, dilute with 100ml of distilled water, neutralize with diluted nitric acid , add 7.5ml of diluted nitric acid, choice silver glass electrode and titrate with silver nitrate solution (0.1mol/L).
将本品用乙醇溶解 ,加 50 %氢氧化钾溶液 2 0 ml,加热回流 4h,冷却 ,加水 1 0 0 ml稀释 ,用稀硝酸中和后 ,再加稀硝酸 7.5ml,照电位滴定法 ,用银 -玻璃电极 ,以硝酸银滴定液 ( 0 .1 mol/ L)滴定。
9.method : using ODS colum,0. 06mol/L dipotassium hydrogen phosphate (adjust the solution with 10mol/ml potassium hydroxide to pH 9. 0)-ace-tonitrile (35 : 65) as mobile phase,The column temperature was 40℃.
方法:采用ODS柱,以0.06mol/L磷酸氢二钾溶(10mol/ml氢氧化钾溶液调节pH至9.0)-乙腈(35:65)为流动相,柱温:40℃;
10.The dione subsequently reacted with potassium hydroxide and 2-(5-ethyl-2-pyridyl)ethyl sulfonate to produce pioglitazone, and finally with hydrochloride acid to obtain the hydrochloride salt.
5-乙基-2-羟乙基吡啶和甲基磺酰氯反应生成的磺酸酯与5-[(4-羟基苯基)甲基]-2,4-噻哗烷二酮的钾盐反应生成5-[4-[2-(5-乙基-2-吡啶基)乙氧基]苄基]-2,4-噻唑烷二酮(吡格列酮),吡格列酮用盐酸酸化得到盐酸吡格列酮。
