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四氟乙烷磺酸内醋(I)或氟碳基全氟甲基磺酞氟(II)与氟化钾、四氟乙烯和氯化碘或碘在二乙二醇二甲醚中常压、反应,制得5-碘-3-氧杂全氟戊磺酞氟ICF_2CF_2CF_2S0_2F(III),它与四氟乙烯调聚得I(CF_2CF_2)_n+1OCF_2CF_2SO_2F, n=1, 2, 3, 4,·…利用Swans方法将此类碘化物转变成氟化物F(CF_2CF_2)_n+1OCF_2cF_2SO_2F,最后与碱作用生成钾盐.所有产物的结构均经元素分析、红外光谱、F核磁共振谱和层析分析确定.全氟烷基醚磺酸钾作为抑铬雾剂应用于镀铬工艺,其抑铬雾效果良好.在无机械排雾设备情况下,添加该钾盐0.02..,0.04克/升,可使铬雾逸出的最大浓度降低到0.005..,0.002毫克(三氧化铬)/米叹空气),能防止铬酸对人身之毒害,并可节约铬酸20...30,既免除了排雾设备及净化回收系统,又节约了动力.在镀铬中添加此种抑铬雾剂,对镀层的光亮度并无影响,
Tetrafluoroethanesulfonic acid endo-acetic acid (I) or fluorocarbon perfluoromethylsulfone fluoride (II) is reacted with potassium fluoride, tetrafluoroethylene and iodine chloride or iodine in diethylene glycol dimethyl ether at atmospheric pressure (CF2CF2) _n + 1OCF_2CF_2SO_2F with tetrafluoroethylene, n = 1, 2, 3, 4, 5-iodo- ························································································, Determine the potassium perfluoroalkyl ether sulfonate as chrome fog agent applied to the chrome plating process, the chrome fog effect is good in the absence of mechanical mist removal equipment, add the potassium salt 0.02 .., 0.04 g / l, So that the maximum concentration of chromium fog escaped to 0.005 .. 0.002 mg (chromium trioxide / m sigh air), to prevent chromic acid on the human body and can save chromic acid 20 ... 30, both free Row fogging equipment and purification recovery system, but also save power in the chrome added to this chrome fog agent, the brightness of the coating has no effect,