查询词典 acid

When the molar ratio of tungstic acid∶acidic organic additive∶cyclohexene∶hydrogen peroxide was 1∶1∶40∶176 (tungstic acid, 2.5 mmol) and the tungstic acid/resorcinol used as catalyst, the isolated yield of adipic acid was up to 90.9% for 8 h.

以钨酸/有机酸性添加剂为催化体系，在无有机溶剂、相转移剂的情况下，催化30%过氧化氢氧化环己烯合成己二酸。

Film, sulphuric acid paper haihong-type: this type of original, exposure time, should be carefully handle, because some of the pictures and texts used in film than sulfate for paper document the required exposure time to increase twice as much, or even better, this type of original in exposed not only to ready a sheet of typing paper to retaining to part of the exposure time, but also to prepare a ratio of sulphuric acid paper size large waste PS version mastering sulfuric acid paper blocked the view of typing paper, and the film also exposure, this piece of PS version is good to all of retaining this side of sulfuric acid paper for extending the original copy for the last half of the original version, so that the exposure time of light and dark sides.

软片、硫酸纸参半型：这栽典范榜样的原版，在曝平工夫上，更答不苛澈底不天把持，因为用软片的一些图不白给比用硫酸纸的图不白所需曝平工夫给补充二倍，甚至更众些，这栽典范榜样的原版在曝平时，不但给绸缪好一张打字纸来挡去一局部曝平工夫，而且还给绸缪一块比硫酸纸面积稍不小一不面的宝PS版，在把持好硫酸纸遮关打字纸，而软片一面还给曝平的环境下，这块PS版不离起到残部挡好硫酸纸的这边，以延不幼软片这半版原版的曝平工夫，使双方的图不白深浅分歧。

The adsorption of formic acid, acetic acid, propanoic acid, pemanoic acid on basic polysiloxane resin was studied.

本文研究了甲酸、乙酸、丙酸和戊酸在三乙醇胺交联聚硅氧烷树脂上的吸附行为。

The phenol degradation mechanism was expected as:phenol→benzoquinone→maleate→oxalic acid,Malonate→propanoic acid,acetic acid,formic acid→CO_2 and H_2O.

试验分析苯酚在反应过程中分解机理为：苯酚→苯醌→马来酸→乙二酸、丙二酸→丙酸、乙酸、甲酸→水和二氧化碳。

Series of ternary and quadruple doping complexes of europium with benzoic acid ,p-aminobenzoic acid,phthalic acid , m-phthalic acid, and 1,10-phenanthroline were synthesized.

合成了铕与以苯甲酸、对氨基苯甲酸、对硝基苯甲酸、邻苯二甲酸和间苯二甲酸等为第一配体，邻菲咯啉为第二配体的掺杂配合物。

Strong corrosion fluid sulfuric acid, nitric acid, phosphorous acid, hydrochloric acid, caustic sodium and organic solvent, etc.

强腐蚀性流体(硫酸、硝酸、磷酸、盐酸类、苛性钠及有机溶剂等)。

They include thiamin (B1), riboflavin (B2), niacin, vitamin B6, pantothenic acid, folic acid, biotin, and vitamin B12; some authorities also include choline, carnitine, lipoic acid, inositol, and para-aminobenzoic acid.

它们包括硫胺素(维生素B1)、核黄素(维生素B2)、烟碱酸(维生素B3)、哆醇(维生素B6)、泛酸、叶酸、生物素、维生素B12，有些说法还包括了胆碱、肉毒碱、硫辛酸、肌醇、对氨基苯酸。

The Company perennial operating a variety of organic chemical raw materials, varieties include: methanol, ethanol, ethylene glycol, n-butyl alcohol, isobutyl alcohol, isopropyl alcohol, acetic acid, vinyl acetate, acetic acid acetate, acetic acid small lipid , styrene, toluene, phthalic anhydride, xylene, acetone, butanone, cyclohexanone, DMF, sulfuric acid, methyl isobutyl ketone, glycol ether, three toluene, octyl resin, melamine, etc. and so on.

本公司常年经营各种有机化工原料，品种有：甲醇、乙醇、乙二醇、正丁醇、异丁醇、异丙醇、冰醋酸、醋酸乙烯、醋酸乙脂、醋酸丁脂、苯乙烯、甲苯、苯酐、二甲苯、丙酮、丁酮、环己酮、DMF、硫酸、甲基异丁基酮、乙二醇丁醚、三甲苯、二辛脂、三聚氰胺，等等。

I for Hong Kong and Taiwan-owned business enterprises in the chemical industry more than twenty years of marketing, agent distribution Chemical famous brand, the main service items are as follows: methanol, ethanol, ethylene glycol, n-butyl alcohol, isobutyl alcohol, isopropyl alcohol, ice acetic acid, vinyl acetate, acetic acid acetate, acetic acid Ding resin, styrene, toluene, phthalic anhydride, xylene, acetone, butanone, cyclohexanone, DMF, sulfuric acid, methyl isobutyl ketone, glycol ether, three toluene, octyl resin, melamine, and so on.

我公司为港台商独资企业，于化工行业行销二十余年，代理经销国外著名化工品牌，主要服务项目如下：甲醇、乙醇、乙二醇、正丁醇、异丁醇、异丙醇、冰醋酸、醋酸乙烯、醋酸乙脂、醋酸丁脂、苯乙烯、甲苯、苯酐、二甲苯、丙酮、丁酮、环己酮、DMF、硫酸、甲基异丁基酮、乙二醇丁醚、三甲苯、二辛脂、三聚氰胺，等等。

The company operating a variety of perennial organic chemical raw materials, varieties include: methanol, ethanol, ethylene glycol, n-butyl alcohol, isobutyl alcohol, isopropyl alcohol, acetic acid, vinyl acetate, acetic acid acetate, acetic acid Ding resin, styrene, toluene , phthalic anhydride, xylene, acetone, butanone, cyclohexanone, DMF, sulfuric acid, methyl isobutyl ketone, glycol ether, mesitylene, octyl resin, melamine.

本公司常年经营各种有机化工原料，品种有：甲醇、乙醇、乙二醇、正丁醇、异丁醇、异丙醇、冰醋酸、醋酸乙烯、醋酸乙脂、醋酸丁脂、苯乙烯、甲苯、苯酐、二甲苯、丙酮、丁酮、环己酮、DMF、硫酸、甲基异丁基酮、乙二醇丁醚、三甲苯、二辛脂、三聚氰胺。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。