The Catic Friction Materials Co. Ltd in Shandong Province is a joint venture between the China Aero Technology I/E Corp, Beijing Company and the Yimeng Braking Materials Factory in Shandong Province. It deals mainly i...The Catic Friction Materials Co. Ltd in Shandong Province is a joint venture between the China Aero Technology I/E Corp, Beijing Company and the Yimeng Braking Materials Factory in Shandong Province. It deals mainly in semi metallic nonasbestos brake flakes for car use and related products. It has RMB20 million of total investment, 1, 200 staff and workers,展开更多
In the NaOH-NaCl-CH2（NH2）COOH medium,the reagent reacts with cethyltrimethylammonium bromide（CTMAB）and cteylpyrid-inium bromide（CPB）to form blue purple complex of component ratio 1∶2.The absorption maximum of t...In the NaOH-NaCl-CH2（NH2）COOH medium,the reagent reacts with cethyltrimethylammonium bromide（CTMAB）and cteylpyrid-inium bromide（CPB）to form blue purple complex of component ratio 1∶2.The absorption maximum of the complex is at 565nm.The range of Beer’s law to be obeyed,apparent molar absorptivity and critical micelle concentration of the cationic surfactants were determined,respectively.展开更多
文摘The Catic Friction Materials Co. Ltd in Shandong Province is a joint venture between the China Aero Technology I/E Corp, Beijing Company and the Yimeng Braking Materials Factory in Shandong Province. It deals mainly in semi metallic nonasbestos brake flakes for car use and related products. It has RMB20 million of total investment, 1, 200 staff and workers,
文摘In the NaOH-NaCl-CH2（NH2）COOH medium,the reagent reacts with cethyltrimethylammonium bromide（CTMAB）and cteylpyrid-inium bromide（CPB）to form blue purple complex of component ratio 1∶2.The absorption maximum of the complex is at 565nm.The range of Beer’s law to be obeyed,apparent molar absorptivity and critical micelle concentration of the cationic surfactants were determined,respectively.
