查询词典 acetone

Cumene hydroperoxide ; resin ; decomposition ; phenol ; acetone ; catalyst

过氧化氢异丙苯；树脂；分解反应；苯酚；丙酮；催化剂

Keywords cumene process;phenol;acetone;zeolite;catalyst

异丙苯法；苯酚；丙酮；沸石分子筛；催化剂

Reasons for filter frequent block for the post-treatment of acetone cyanohydrin are analyzed.

分析了丙酮氰醇合成后处理中过滤器经常堵塞的原因。

Acetone cyanohydrin may have different extent of toxic effect on cellular membrane and organelle membrane.

丙酮氰醇对染毒动物细胞和细胞器膜均有不同程度的毒效应。

Table 2 The activity of Na+,K+-ATPase and cytochrome oxidase,fluorescent polarizationafter subacute exposure to acetone cyanohydrin ±s,n=6

表2 丙酮氰醇亚急性染毒大鼠红细胞膜和脑线粒体膜的Na+，K+-ATP酶、细胞色素氧化酶活力及荧光偏振度

Acetone cyanohydrin ; polymerization inhibition ; crystallization ; filtering ; hydrocyanic acid

丙酮氰醇；阻聚；结晶；过滤；氢氰酸

In cyclohexanone/acetone mixed solvent, the initial SPS concentration is high.

在非良溶剂体系，可乳化的最大初始浓度比良溶剂体系的高。

Our company is very famous in the market for over 40 chemical products such as Phenol, Acetone and Cyclohexanone.

公司多年来经销的以苯酚、丙酮、环己酮等四十余种化工产品闻名遐迩。

Some bacterial species, because of the chemical nature of their cell walls, have the ability to retain the crystal violet even after the treatment with an organic decolorizer such as a mixture of acetone and alcohol.

革兰氏染色可以区分二种类型的细菌之细胞壁，有些细菌因其细胞壁的化学特性，能在如丙酮或酒精等脱色剂的处理后，仍能够保留结晶紫的颜色

Chapter two 4-Hydroxybenzoic acid is connected with PEG6000 through defoliant DCC at rooom temperature, then the product is refluxed with chloroacetic acid in acetone to afford PEG-bound phenyloxyacetic acid, which is reacted with thionyl chloride, ammonium thiocyanate and arylamines in turn to give PEG-bound disubstituded thioureas. After the cleavage with sodium methoxide in methanol, the eleven disubstituted thioureas are obtained.

第二章 利用PEG6000作载体，通过脱水剂DCC在室温下将对羟基苯甲酸以酯键连接在PEG6000上，再与氯乙酸在较温和的条件下生成PEG6000支载的芳氧乙酸，然后，依次与亚硫酰氯、硫氰酸铵、芳胺反应，生成PEG6000支载的硫脲，最后用甲醇钠的甲醇溶液切割PEG，得到了十一种1，3-二取代硫脲。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。