查询词典 phenol-phthalein

The AM1 method was used for a quantum chemistry study of the phenol hydroxylation reaction mechanism. The possible reaction path of the phenol and oxyhydrogen free radical was optimized, and the structures of stable intermediates in the reaction mechanism were also obtained.

本文还首次采用AM1方法对苯酚羟基化反应机理进行了量子化学研究，将苯酚与氢氧自由基的反应沿可能的反应路径进行几何优化，得到反应历程上相关驻点稳定构型的三维结构。

Ozonization with enhancement of hydrodynamic cavitation was used in the degradation of phenol,and the influences of ozone flux,parameters of porous plate,inlet pressure of the porous plate on phenol degradation were investigated.

研究了在水力空化强化臭氧降解苯酚时臭氧通入量、多孔板的参数、多孔板的入口压力对苯酚降解的影响。

Pharmacopeia specification for phenol includes (1) purity is to be no less than 98 wt %,(2) clear solubility of 1 part of phenol in 15 parts of water,(3) a congealing temperature to be not lower than 39°C, and (4) a content of nonvolatiles of no more than 0.05 wt %.

给酚的美国药典规格包括(1)纯度是多达 98个重量%，(2)结清酚的 1个部分的溶解度在水的 15个部分中，(3)使冻结温度不是比 39个° C 低的，和(4)不超过 0.05个重量的非挥发性的内容%。

In combination with the situation that apparent color of phenol product turns red, measure of strengthening fee quality control, optimized phenol distillation process, strengthening mass flow control, the discoloration issue was relieved.

结合生产中出现的苯酚产品外观颜色变红的情况，提出了加强原料质量控制、优化苯酚蒸馏工序、加强物流控制等措施，减轻变色问题。

With pyroxy as an adsorbent,the adsorption of pyroxylin for phenol in sewage,the rate of adsorption,the capacity of adsorption and the effect of pH on the adsorption of phenol were studied.

本文所用焦木素是以造纸黑液提取的木素为原料制备的，其吸附性能与活性炭类似，其原料来源丰富，价格低廉，且可利用废物，将其应用于含酚废水的处理，达到以废治废的目的。

In the rhombohedron, each top site is occupied by a pair of ligand-unsupported Ag atoms which are surrounded by six phenol groups in an ethane-like structure. The phenol groups at another ends of the ligands bridge the rhombohedrons into novel non-interpenetrating three-dimensional network.

在每个棱柱体内，每个顶点由无桥连配体支持的、周围的六个酚羟基以一种不寻常的、类似于乙烷分子结构的扭曲方式排列的一对 Ag 原子占据，配体另一端酚羟基将棱面体连接成新颖的非穿插的具有棱形通道(沿 a 和 b 轴方向)的三维网络结构。

Rock wool can absorb some phenol, and phenol can almost be degradated completely after 120 min.

岩棉对苯酚有一定的吸附作用。经过120min的处理，苯酚基本上被完全降解。

The opti mumreagent,which was selected out through comparing the staining effects of 4 staining reagents(I-IK coloration solution,improved phenol fuchsin,safranine staining solution and aceto carmine),was i mproved phenol fuchsin.

通过比较4种染色试剂(I-IK染液、改良苯酚品红、番红染液和醋酸洋红)的染色效果选出的最佳试剂为改良苯酚品红。

This paper made a kind of with Xiu water forecast l aw determine high density volatilize phenol dilute multiple, have offer de a kind of scientific accurate operating analysis method for being in height of density sample, simplefast, can ensure high density volati lize successfulness and the reliability of phenol sample analysis, have great application and extending valu

提出一种以溴水预测法确定高浓度挥发酚稀释倍数，为高浓度水样提供了一种科学准确的操作分析方法。

In order to study the effects of acid catalysts on wood liquefaction in phenol, the liquefaction of wood powder from Chinese fir and poplar in the presence of phenol using several relatively weak acids as catalysts, such as phosphoric acid (85%), sulfuric acid (36%), hydrochloric acid (37%) and oxalic acid (99%), were investigated.

为了探讨酸性催化剂对木材苯酚液化的影响，该研究采用磷酸(85%)、低浓硫酸(36%)、盐酸(37%)、草酸(99.5%)4种弱酸性无机酸，在不同温度下进行了木材的液化试验。

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。