查询词典 phenol-phthalein

The optimum condition of PWF prepared fromliquefied wood is: actual pH of liquefied wood without extra acid, 105℃, 150min and 0.7～0.8of ratio of formaldehyde to phenol.

木材液化产物制备PWF的适宜工艺参数为：pH为木材液化产物的实际值，温度105℃，时间150min，n∶n=0.7～0.8。

Brown-rotted wood can be more easily liquefied than normal wood. When the weightratio of wood and Phenol to phosphoric acid was 1:2:0.16, the residue content of liquefieddecayed wood was only 7.6％for 0.5h.

试验结果证明，当1％NaOH抽出物或结晶度变化至54％和28％左右时，木材的生物预降解程度即可达到缓和液化条件的目的。

As early as 1872, German chemist Adolf Von Baeyer was investigating the recalcitrant residue that gathered in the bottom of glass-ware that had been host to reactions be-tween phenol (a turpentine-like solvent dis-tilled from coal tar, which the gas-lighting industry produced in bulk) and formalde-hyde (an embalming fluid distilled from wood alcohol).

早在1872年，德国化学家阿道夫？冯？拜耳就在研究主要由酚（从煤气照明工业大批量产出的煤渣中提炼的类似松节油样的溶剂）和甲醛（从本醇中提炼的防腐液体）之间的反应所产生聚集在玻璃器皿底部的棘手的残渣。

A colorless to yellowish oily liquid containing phenol s and creosols,obtained by the destructive distillation of wood tar,especially from the wood of a beech,and formerly used as an expectorant in treating chronic bronchitis.

杂酚一种含有酚混合物的无色到黄色油状液体，可由木焦油干馏而得，以前被用作治疗慢性支气管炎的祛痰剂

Cresol and xylenol: redish-brown liquid, Phenol series products are poisonous, strongly corrosive and combustible.

苯酚常温下为白色或略有红色的结晶，甲酚和二甲酚为红棕色液体，酚类产品有毒，有极强的腐蚀性，可燃。

Analytical results showed that the upper clear liquid of pyrolysis oils was mainly consisted of water-soluble substances,such as phenol,cresol,xylenol,sugars,hydantoins,morpholines,pyranones and pyridine derivatives compounds,etc.,while the lower sediment was mainly insoluble or hardly water-soluble substances,such as the big substituent phenolics(the number of substituent carbon atoms of which is greater than or equal to 2),aryl phosphate esters,fatty acid esters and nitrile compounds,and so on.

研究表明，热解油上层清液主要是一些较易溶于水的物质，如苯酚、甲酚、二甲酚、糖类、乙内酰脲类、吗啉类、吡喃酮类和吡啶类化合物等；而下层沉淀则主要为不溶或难溶于水的物质，如大取代基酚类（取代基碳原子数≥2）、磷酸三芳基酯类、脂肪酸酯类和腈类化合物等。

When an effective dosage of benzene, Xylene or phenol was added Zebra fish would loss their swimming activity and proceed to death.

将一次有效剂量的苯、二甲苯及苯酚加入时，鱼会丧失游动能力直至死亡，且伴随着鱼体光子辐射的明显变化。

The intermixture of positive ion surfactant Cetyltrimethyl Ammonium Bromide and zwitterion surfactant N,N-C12BE was used to modify the natural zeolite. Correlative parameters of modified zeolite adsorbing Cr and phenol from wastewater were studied.

摘 要：用阳离子表面活性剂十六烷基三甲基溴化铵与两性离子表面活性剂 N，N-二甲基十二烷基甜菜碱复配的混合表面活性剂对天然沸石改性，研究了改性沸石吸附废水中 Cr 和苯酚的相关参数。

Method］ Take foramen magnum resin D101 to separate polysaccharide from the zymotic fluid of Cordyceps mycelium, the phenol-SO2 method to measure polysaccharide in sample.

方法］采用D101大孔树脂分离冬虫夏草菌丝体发酵液中的多糖；采用苯酚-硫酸法测定样品中多糖含量。

Acute toxicities of phenol,Cu2+,nitrite and total ammonia to juvenile Chinese sturgeon Acipenser sinensis fingerlings were determined in static bioassays.

研究了苯酚、Cu2+、亚硝酸盐和总氨氮对8~12日龄中华鲟 Acipenser sinensis稚鱼的急性毒性，中华鲟稚鱼的全长为(2.36±0.10)cm，平均体重为0.07 g。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。