研究了对羟基苯甲酸钴和对羟基苯甲酸镍对天然橡胶与黄铜粘合的影响。
The effect of cobalt and nickel p-hydroxy benzoates on the adhesion between NRand brass was studied.
从氟代甲苯出发，以醋酸为溶剂，采用液相空气氧化法，在钴锰盐和1，1，2，2-四溴乙烷催化体系存在下，合成了氟代苯甲酸，采用升华方法进行精制。
Fluorobenzoic acids were prepared from fluorotoluenes through liquid phase air oxidation with acetic acid as solvent and Co~(2+)-Mn~(2+)-1, 1,2,2-tetrabromoethane as catalyst.
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