在氟化钾催化下， 芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应，得到高产率的缩合产物。
The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.
采用氟离子选择电极法测定氰氨化钙炉料中氟化钙的含量，进行了条件和应用试验。
Calcium fluoride content in calcium cyanamide charging is determined by a fluoride ion selective electrode method, and its conditions and applications are tested.
采用磷酸双氰胺盐作环氧粉末涂料的固化剂、氟化钠作添加剂。
This research USES dicyandiamide as firming agent in epoxy powder coating and sodium fluoride as additive in epoxy.
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