氯酸

In the acylation reaction between anisole with acetyl chloride, The catalyst of ZnCl〓/HY-98 prepared by MWI had the best catalytic activity and the selectivity of p-methoxy acetopheone. The catalytic active centers were ZnCl〓 dispersed in zeolite and the Bronsted acid sites in HY-98 zeolite itself.

在苯甲醚与乙酰氯的酰化反应中，微波固相法制备的ZnCl〓／Y催化剂有相对较好的催化活性和选择性，起催化作用的主要是分散在分子筛表面的ZnCl〓和分子筛本身的B酸。

To improve the cyano reactivity, cyano-terminated PPENs were prepared by the end-capping reaction of PPEN-OL with CBN; benzonitrile terminated polys were also prepared by the polycondensation of excess 4,4'-oxydianiline with 1,2-dihydro-2-(4-carboxyphenyl)-4-[4-(4-carboxyphenoxyl)phenyl]-phthalazinone, followed by end-capping with CBA. The polymers synthesized exhibited good solubility in NMP, DMAc and DMF, and were crosslinked to afford phenyl-s-triazine-containing polymers under the similar conditions.

为提高氰基活性，以对氯苯腈为原料，对PPEN-OL进行封端，设计合成了含氰端基的聚芳醚腈；以含二氮杂萘酮联苯结构二酸单体与4，4'-二氨基二苯醚为原料，经Yamazaki膦酰化缩聚，并用对氰基苯甲酸进行封端，合成了含氰端基的聚芳醚酰胺。

Three ways leads to the synthesis of fenclorin, one way discussed here has 3 steps. Stepl :benzonitrile using as raw material goes though dry hydrogen chloride and becomes a-imino phenylmethyl ether after meet carbinol.

解草啶的合成主要有三条路线，本文选取合成路线是以苯甲腈为原料，经三步反应而成：1、苯甲腈在干燥的氯化氢通入，与甲醇形成亚氨基苯甲醚，通入氨气后置换甲氧基得到苯基脒盐酸盐(收率76.18%)。2、苯基脒盐酸盐在碱性条件下与丙二酸二乙酯环合而得嘧啶醇(收率84.39%)。3、嘧啶醇在三氯氧磷中羟基被氯化得到产品解草啶(收率87.29%)。

When sunlight mixes with the bromide and chlorine in Ivanhoe's water, the carcinogen bromate can form.

当阳光混合的溴和氯在巴黎的水，溴酸钾可致癌物质形式。

The adsorption and reaction process of isobutane and butene were investigated by using in-situ IR, Reaction-MS and Adsorption methods.

利用HF酸溶解以及用二氯甲烷进行萃取等方法，对失活催化剂的性质进行了细致的研究。

Our company adopt advanced production technology and equipment, to paint in different modified resin system pre-dispersion, used for high-grade inks, paints and coatings production, the main products are lipid soluble and alcohol soluble nitrocellulose pre-dispersed pigment-based color films, water-based acrylic paints pre-dispersed color tablets, chlorine vinegar pre-dispersed pigment color polymer films, cellulose acetate butyrate pre-dispersed pigment color films, polyvinyl butyral pre-dispersed pigments, such as color film.

本公司采用先进的生产技术和设备，把颜料在不同的改性树脂体系中进行预先分散，用于高档油墨、油漆和涂料的生产，主要产品有脂溶和醇溶型硝化棉预分散颜料色片、水性丙烯酸预分散颜料色片、氯醋聚合物预分散颜料色片、乙酸丁酸纤维素预分散颜料色片、聚乙烯醇缩丁醛预分散颜料色片等。

We set up an orthogonal experiment, use diclofenac sodium as drug model, detect the pemeate velocity, lag time, and transit dose accumulated in 24 hours(Q24) as index of drug action of azone, menthol and camphol using together on skin of back of unde rat on the equipment of percutaneous absorption in vitro, evaluate the contribution of transdermal enhancers by Topsis.

在离体透皮吸收装置上，采用正交试验的设计方法研究不同浓度的氮酮、薄荷醇、冰片联用对双氯芬酸钠在离体裸小鼠背部皮肤上的透皮行为，以累积透过量、渗透速率和滞后时间为药效指标，运用Topsis法评价促透效果。

We set up an orthogonal experiment, use diclofenac sodium as drug model, detect the pemeate velocity, lag time, and transit dos e accumulated in 24 hours(Q24) as index of drug action of azone, menthol and camphol using together on skin of back of unde rat on the equipment of percutaneous absorption in vitro, evaluate the contribution of transdermal enhancers by Topsis.

在离体透皮吸收装置上，采用正交试验的设计方法研究不同浓度的氮酮、薄荷醇、冰片联用对双氯芬酸钠在离体裸小鼠背部皮肤上的透皮行为，以累积透过量、渗透速率和滞后时间为药效指标，运用Topsis法评价促透效果。

Chapter 2; Synthesis of 4,7,- dichlorine -5 (and 6)- carboxylic acid Rhodamine bright fluorescent dye

第二章 4，7，-二氯-5(和6)-羧酸罗丹明荧光染料的合成研究

Chloral content in phosphate fertilizer must be controlled under crop's critical dosage and assist fertilizer

废酸磷肥中的三氯乙醛含量必须控制在作物临界剂量以下，并应采取适当施肥方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。