Thermal-oxidative stability of poly (vinyl chloride) (PVC) by carboxylic ester rare earth salt (CERES) has been studied during thermoexidativeageing in static condition in air.
用热烘法研究了羧酸酯稀土（CERES）对聚氯乙烯（PVC）的热氧稳定作用。
2
Methods tropisetron hydrochloride was synthesized from indol-3-yl carboxylic acid by chlorination and condensation with tropic alcohol lithium, then salt formation with hydrochlororic acid.
方法：以吲哚-3-甲酸为起始原料，酰氯化后与托品醇锂发生缩合反应，再与盐酸成盐制得盐酸托烷司琼。
3
A solidification matrix includes a straight chain saturated carboxylic acid salt, sodium carbonate, and water.