The salt formation and crystallization process of cefoperazone with sodium bicarbonate water and acetone were reported.

The properties of products prepared by acetone process and prepolymer mixing process are compared.

简述水性聚氨酯制备方法,并对丙酮法和预聚物分散法所制产品性能进行比较.

Immerse the end of the column in a vial of acetone and check bubbles.

将柱尾端入丙酮中检查气泡.

A new bimetallic basicity catalyst used for synthesis of methyl isobutyl ketone from acetone and hydrogen.

制备了常压下丙酮与氢气合成甲基异丁基酮的双金属碱性催化剂,并测定了其反应活性.

It was than allowed to thoroughly dry and dissolved in acetone.

它是比让周到地烘干和溶化在丙酮里.

Table 1 property parameters of acetone.

参数数据如表1所示.

Acetone Finger nail polish remover , a preservative for dead frogs, an insecticide.

丙酮:指甲水和杀虫剂的组成成分, 也可用于防腐.

Properties Soluble in benzene, acetone, chloroform, a little soluble in alcohol, insoluble in water.

性质溶于苯 、 丙酮 、 氯仿, 微溶于乙醇, 不溶于水,对呼吸道与皮肤有刺激作用.

Acetone is impregnated fabric coating, above, to curing coatings will be dissolved.

方法是用浸透丙酮的布块在涂层上面擦拭, 若固化不良,涂层会被溶解.

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后,研磨好的新鲜试样必须在工业酒精及纯丙酮中洗涤.

One might expect azomethane to have a Y structure similar to that of acetone ( CH 3 ) 2 CO.

可以预期偶氮甲烷分子具有和丙酮 ( CH3 ) 2CO分子相似的丫形结构.

After some initial problems, acetone was successfully produced in quantity.

解决了最初的一些问题之后，终于成功地制造出了大量丙酮。

In refluxing acetonitrile, water could also undergo the similar addition with alkenyl perfluoroalkyl sulfones.

在回流的乙腈中水也可与氟烷基联烯砜发生类似的加成反应.

The Sudan dyes were extracted with acetonitrile and the clean-up procedure was not required.

建立了食品中苏丹红染料的液相色谱 - 质谱联用测定方法.

This paper reports the synthesis of 2-heptanone in the functions of absolute potassium fluoride and acetonitrile.

报道了在无水氟化钾和乙腈作用下2 - 庚酮的合成.

The milled sample was soaked in water containing NaCl, then extracted with acetonitrile.

磨碎的试样加入少量氯化钠,用水浸泡, 再用乙腈提取.

This technique cut off benzene and acetonitrile weakened the toxicity, reduced the production cost.

改进后的工艺革除了苯和乙腈, 降低了毒性和成本.

The technical characteristics of the acetonitrile extracted butadiene plant after remoulding were introduced.

简介了乙腈抽提装置的技术改造情况.

Methods In accordance to the international detective method, acetonitrile ( ACN ) was used as the substitute of additive solvent.

〔方法〕按照国际检测方法对辣椒粉做了苏丹红添加试验,样品溶剂换成乙 腈.

A novel process of acetonitrile recovery from pharmaceutical effluent was designed.

设计了一套回收制药废液中乙腈的新工艺.

The N-acetyl-carnosine eye drops were prepared, and was stable at room temperature for 2 years.

制备了N - 乙酰肌肽滴眼液,室温放置2年, 稳定性良好.