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【答案】应助回帖
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hanxiao9985: 金币+200, 翻译EPI+1, ★★★★★最佳答案, 谢谢， 辛苦了！ 2013-06-08 20:42:32
Fluoride has the very high chemical activity and biological activity, which is one of the great harm of pollutants，no matter to people, flora, fauna or ecological system. At the same time, fluorine and its family almost become the important chemical raw materials additives and other important refrigerant material for industry. Recently, it's this duality that many scholars concern and research about.
This paper introduces the basic characteristics of fluoride and potassium fluoride, fluoride effects on human health, industrial fluorine pollution source and fluorine pollution of surface water in China's far-reaching effects on the human nature. And explaining the preparation of potassium fluoride with multiple perspectives. This paper deals with fluorine ion and chloride ion in the waste which can be converted to determination of fluoride ion content in industrial waste, using acid and alkali titration and fluorine ion electrode potential analysis.
Nowadays, due to China's containing fluorine medicine, containing fluorine agrochemical, containing fluorine dye and rapid development, especially the fluorine-containing pesticides have been listed as national key product, so this paper studies the recycling of potassium fluoride is of great value.
Key words: fluoride; Industrial fluorine; Potassium fluoride recovery; Fluorine ion electrode potential analysis
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