甲醛

Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.

以间硝基醛,乙酰乙酸乙酯,氨化试剂为原料。

Cu furaldehyde-ethylene diamine Schiff base complex was synthesized with the yield of 63.

合成了一种席夫碱金属络合物——醛乙二胺铜络合物,收率为63。

Moreover, the characteristics and the main applied fields of polyacetal resin were presented.

并介绍了聚醛树脂的特性主要应用领域。

A new curing agent was synthesized by the reaction of phenylamine-formaldehyde and dicyanodiamide.

利用胺-醛与双氰胺反应得到了一种改性产物。

Formaldehyde, benzene, ammonia and radioactive pollution' superscale have seriously affected people's health.

醛、、氨气放射性污染超标已经严重影响了人们的健康。

The absorption spectroscopic determination of aucubin by condensation with p-dimethylaminobenzaldehyde was optimized in this paper.

采用均匀设计法对对二氨基醛显色法测定桃叶珊瑚甙的显色条件进行了优化。

A reaction engineering analysis was given to a trioxane synthesis reactorssuggested by BASF company.

对德国BASF公司提出的聚醛合成反应器进行了工程分析。

Formaldehyde is widely used in vinylite, plastic, rubber, paper making, pharmacy, and antisepsis and so on.

醛用途十分广泛，涉及合成树脂、塑料、橡胶、造纸、制药防腐等领域。

Desulfonation of SFP lignosulfonate was studied in this paper under alkaline and high temperature and pressure.

对亚硫酸盐-醛-蒽醌制浆法（SFP）的副产品木质素磺酸盐在碱性高温条件下进行了脱磺工艺的研究。

A simultaneously potentiometric titration method for determining benzaldehyde and benzoic acid in electrosynthesis products was reported.

采用电位滴定法测定电合成产物中的醛酸,研究了盐酸羟胺用量、醇含量对测定的影响。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以醛丙酮为原料,氟化钾氧化铝作催化剂合成了苄叉丙酮。

The results showed that the main product was benzaldehyde and a little by-products were styrene oxide and phenylacetaldehyde.

发现该工艺中主要生成醛，少量副产物是环氧乙烷乙醛等。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚醛、冰醋酸丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下观察。

The colorimetry of sulfuric acid and p-Dimethylaminobenzaldehyde used to determinate the fusel oil of alcoholic liquor,but it occurs deviation.

测定白酒中杂醇油常采用硫酸-对二胺基醛比色法,但测定常有误差。

For Group B, the vitalight lamp radiation and steaming of methanal plus PP were used in combined air sterilization.

紫外线灯照射与醛加PP熏蒸联合空气消毒为B组。

Abstract : A new colorimetric chemosensor 1 based on a tripodal benzaldehydic-phenylhydrazone selectively sensing acetate ion has been synthesized.

摘要 ： 本文合成了一个新的基于脚架醛腙的能够选择地检测醋酸根离子的比色化学传感器 1 。

With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.

用氯化钙作沉淀剂，消除磷酸根离子的干扰，用醛法测定复合肥中的总氮。

Glycoluril prepared under optimized process conditions has the following good properties of low content of free formaldehyde,durable and stable and crease-proofing.

用优化的工艺条件制备的甘脲树脂，具有游离醛含量低、耐久定型、抗折皱的优良性能。

Thus, Gramine was prepared from Indole by condensatallizafion, the purity of Gramine was 98% , and the yield was 95% .

报道了芦竹碱新的合成方法,由吲哚与醛二胺缩合而制得芦竹碱,经重结晶后其含量为98％。

This paper has predicted indirectly by means of measuring the equivalent viscosity of resorcin-formaldehyde resin liquor(thereinafter referred to as RF resin).

通过测量在线取样的间二酚-醛树脂(以下简称RF树脂)溶液的当量粘度,来间接判断RF树脂的粘合性能。