xylenol

The O-alkylation of 2,5-dimethylphenol with 1,3-dihalogen- propane and some monohalogen carboxylic esters are studied.

研究了2,5-二甲苯酚与1,3-二卤代丙烷及一卤代羧酸酯的O-烷基化反应。

Reaction of calcium with xylenol orange (XO) and cetylpyridium bromide(CPB) in the NH 3 NH 4Cl buffer medium at pH 10.

8的NH3 NH4Cl缓冲溶液介质中 ,Ca2 + 与二甲苯酚橙 (XO)及溴化十六烷基吡啶 (CPB)生成蓝色的三元配合物 ,其组成比例约为n(Ca2 + ) n(XO) n(CPB) =1 2 6 ,其最大吸收波长为 6 10nm ,表观摩尔吸光系数为 4。