The paper discusses the preparation of stearic bicine diester for sizing agent and its application in paper-making.

论述了双硬脂酰取代酯施胶剂的制备及其中的应。

A new tetrakis( p glycylglycinephenyl)porphin and its rare earth (Yb,Sm) complexes were synthesized.They have been characterized by elemental analysis,UV vis,IR, 1HNMR and laser Raman spectra.

首次合成了一种新型的四（对酰）苯基卟吩及其稀土镱、钐的配合物。元素分析、红外光谱、紫外可见光谱、核磁共振和激光拉曼光谱等方法进行了表征。

As shown by study the extracting powers of two extraction agents are changed with acidy of developer extracting power N,N-diphenyl glycine is stronger than N-n-butyl glycine for 5 metal ions.

N，N—二苯基对5种金属离子的萃取能力强于N—正丁基。