Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued.
由于苯酚对人体有刺激性作用,它基本上已不再被当作常用的防腐剂了。
Catechin is a phenol antioxidant found in grape seeds.
葡萄籽中含有的儿茶素是一种酚类抗氧化剂。
Experts suggest that the maximum density of volatile phenol in the water will not exceed 0.005mg/L before it is pumped into water factories.
根据专家意见,确定沿线各自来水厂进水挥发酚最高允许浓度为0.005mg/L(不差于三类水)。
Initial heating of the phenol and formaldehyde (in the presence of an acid or base to get the reaction going) produced a shellac-like liquid good for coating surfaces like a varnish.
开始加热,酚和甲醛(需有酸或碱促使其反应进行)便产生了像紫胶样的液体,能像清漆一样涂于物体表面。
Two pathways to the formation of phenol were proposed.
苯酚的形成有两个可能的路径。
Nail polish contains toxic products like toluene, phenol and xylene.
指甲油中含有有毒物质如甲苯,苯酚,二甲苯。
The amount of combined phenol rose with the reaction time extending.
随着液化反应时间的延长,液化产物结合酚含量上升。
A new syntan product prepared with tar phenol and lignin sulfonic acid.
以工业副产物木素磺酸和焦油酚为主要原料研制出一种新的合成鞣剂。
It is insoluble in carbon disulphide, soluble in hot aniline and phenol.
它不溶于二硫化碳,溶于热苯胺和苯酚。
The phenol resins and plastics were the original synthetic thermosetting materials.
酚树脂和塑料是原始的热硬化性合成材料。
Objective: to set up menthol tincture phenol preparation and quality control method.
目的:建立薄荷脑苯酚酊的制备与质量控制的方法。
The effect of PCP degradation with phenol or glucose as growth substrate was compared.
比较了细菌分别以苯酚和葡萄糖为生长底物时对PCP的降解效果。
The removal effect of phenol was good in acid condition, but poor in alkaline condition.
在酸性条件下苯酚的去除效果较好,碱性条件下降解率很低。
It is a condensation polymer of phenol and formaldehyde activated with an alkaline catalyst.
它是酚与甲醛在一种碱性催化剂作用下缩聚的聚合物。
It was studied on the curing activity of DCPD phenol epoxy resin with anhydrides and amines.
研究了DCPD酚环氧树脂与酸酐及胺类固化剂的固化反应活性。
The adsorption performance of plant oil for phenol was studied by ultraviolet spectrophotometry.
采用紫外分光光度法研究了植物油脂吸附苯酚的性能。
The experiment has offered a comparatively reliable parameter for the phenol wastewater treatment.
这一实验为工业处理含酚废水提供了较为可靠的运行参数。
This paper investigated factors of photocatalytic degradation of phenol in Titanium Dioxide suspension.
采用二氧化钛悬浆体系,考察了光催化降解苯酚的影响因素。
The electrochemical reaction mechanism of phenol at this electrode is studied by the cyclic voltammetry.
还对苯酚在蒙脱石修饰碳糊电极上的反应机理进行了探讨。
The contents of carboxyl, phenol hydroxyl, and lactones groups on carbon black surface have been determined.
同时测定了炭黑表面羧基、酚羟基、内酯基等酸性含氧基团的含量。
Because of its irritating effect on humans , the use of phenol as a general antiseptical has been discontinued.
由于苯酚对人体带有刺激性作用,它基本上已经不被当做日常防腐剂了。
OBJECTIVE:To establish phenol-vitriolic colorimetry for the assaying of polysaccharides in Torreya yunnanensis.
目的:建立以苯酚-硫酸比色法测定云南榧子中多糖含量的方法。
The copolymerization reaction and its kinetics of lignin and phenol with peroxidase as catalyst were researched.
进行了过氧化物酶催化木质素与酚聚合反应及其动力学实验研究。
Recent progress and synthesis methods on direct hydroxylation of benzene to phenol are systematically introduced.
介绍了近年来苯直接羟化合成苯酚的研究进展和合成方法。
METHODS:TLC and phenol-sulfuric acid methods were used to qualitative and quantitative analysis of polysaccharides.
方法:采用薄层色谱法和苯酚—硫酸比色法。
This paper expounds the influence of the purity of 4-antipyrine on the measurement of volatile phenol contents in water.
文章阐述了用纯度高低不同的4—氨基安替比林测定水中挥发酚类含量的影响。
Objective to establish a capillary gas chromatography for determining the contents of phenol and menthol in itch relief agent.
目的建立毛细管气相色谱法同时测定止痒灵中苯酚和薄荷脑的含量。
Results show that the main causes of low induction period of cracked naphtha are the high diene number and low phenol content.
结果表明,二烯值大、酚含量低是加氢渣油催化裂化汽油诱导期短的主要原因。
Results show that the main causes of low induction period of cracked naphtha are the high diene number and low phenol content.
结果表明,二烯值大、酚含量低是加氢渣油催化裂化汽油诱导期短的主要原因。
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