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- xylenol sulfophthalein 二甲磺酞
- Brown liquid ,mainly consist of phenol ,cresol and xylenol etc. 棕褐色液体，主要由苯酚，甲酚和二甲酚等组成。
- The product is mixed by six kinds of xylenol foreign matters. 二甲酚为六种二甲酚异构体的混合物，可制取各种化学品。
- The paper summaries the preparation,properties and application of xylenol isomers. 本文说明二甲酚异构体的生产、性质和应用，有助于对其开展综合利用。
- The process and control index of extracting xylenol from the by_product produced from coal tar processing is described. 叙述了从加工煤焦油产生的副产品中提取二甲酚的工艺及控制指标 ,具有很高的借鉴价值。
- A fiber-optic reflected sensor has been developed by immobilizing xylenol orange on 717 anion ion exchange resin. 研究了一种将二甲酚橙固定在上海717阴离子交换树脂上作为试剂相的光导纤维反射型传感器。
- In neutral solution a quaternary complex of aluminium can be formed in red colour with NaF, xylenol orange(XO) and cetylpyridine bromide. 在氟化钠、二甲酚?~(XO)及溴化十六烷基吡啶(CPB)存在的近中性溶液中,铝可形成红色的组成比为Al:F:XO:CPB=1:2:1:1的Al-F-XO-CPB四元络合物。
- The process and control index of extracting xylenol from the by_product produced from coal tar processing is described.It has a high reference value. 叙述了从加工煤焦油产生的副产品中提取二甲酚的工艺及控制指标,具有很高的借鉴价值。
- The paper summaries the preparation,properties and application of xylenol isomers. It helps to make use of Xylenol comprehensively. 本文说明二甲酚异构体的生产、性质和应用，有助于对其开展综合利用。
- The result shows that high valued 3,5-xylenol with a purity of over 95% can be extracted from industry level xylenol fraction by rectification. 以焦油中低附加值产品工业二甲酚后馏分为原料,用精馏的方法可以得到质量分数>95%25的3,5-二甲酚高附加值产品。
- A resonance light scattering(RLS)method for determination of deoxyribonucleic acid (DNA) was esta- blished by using xylenol orange as fluorescent probe. 用共振光散射技术,建立了以二甲酚橙为探针分子测定DNA的方法。
- The formation of the complex between lead ion and immobilized xylenol orange caused a large reflected light intensity change, and lead ion in the solution can be determinated. 铅离子与固定在阴离子交换树脂上的二甲酚橙的络合反应,使试剂相光反射强度发生了很大的变化,从而使溶液中的铅离子得以测定。
- Founded in 2001, the main chemical products, mainly in coal chemical derivative products. Products are xylene, Cuben. Xylenol, tar, washing oil products. 成立于2001年，主营化工产品,主要以煤化工衍生产品为主．产品有二甲苯，粗笨．二甲酚，焦油，洗油等产品
- brom(o)sulfophthalein(sulfobromophthalein) 磺溴酞钠
- The adsorptive behaviour of 16 elements in trace amounts as hydroxides and chelates of pyrrolidindithiocarbamidate of xylenol orange from aqueous solution on Amberlite XAD-4 resin was examined by using a short column. 本文采用短吸附柱(10×60mm,充填高度24mm)研究了非离子性吸附树脂AmberliteXAD-4从水溶液中对16种金属元素的氢氧化物,二硫代氨基甲酸衍生物的配合物和二甲酚橙配合物的吸附行为。
- Method:this article adopted EDTA complexometric titration,with xylenol orange(XO)-CPCmixed indicator changing from amaranth to French grey for termination,versus barium sulfate proceed quantitative analysis. 方法 :本文采用EDTA络合滴定法 ,以二甲酚橙 (XO) -氯化十六烷基吡啶 (CPC)混合指示剂由紫红色变为浅灰色为终点 ,对硫酸钡进行定量分析。
- Coking phenol in normal temperature: white and slightly red crystals.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。
- Methods: Researches the crop of monkshood in different growth periods by the experiment of drying rate, measures the total quantity of alkaloid contained in monkshood by xylenol orange colorimetry . 方法:采用折干率实验,研究不同生长期附子的产量,采用甲橙比色法测定附子中总生物碱含量。
- Extraction of xylenol from low temperation coal tar 低温焦油中二甲酚的提取
- Xylenol orange modified silica gel 二甲酚橙键合硅胶
