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??????Ƿ??????????ˮ??Һ,Ϊ??ɫ͸????????ɫð??Һ?塣?д̼?????ζ??????ʽ ??HF??H2O????ܶ? 1.15??1.18???е? 112.2??(???????ٷֱȼ?Ϊ38.2%)??????ͨ??Ũ??:Լ47% ???????ʵ??????????ɴ?35.35%???о綾????Ũʱ???ܶ?1.14g/cm3???е?393.15K??120?棩???????????ԣ???Ũʱ?ĵ???ȱ?ϡʱ?????һ??????????б𡣸?ʴ??ǿ???????????𺦽????ء???Ѹ?ٸ?ʴ?????Ⱥ?????ϡ?????Ӧ???ܱյ?????ƿ?ڱ??档??HF????ˮ???á????ڵ?̲???????ϴ?????ϵIJ?ɰ?????Ʒ??͡????׹????ϴ??ʴ?뵼???Ƭ????HNO3?Ļ??ᣩ????Ϊ??ԭ?Ӻͷ?ԭ?Ӽ??ϵ???????Խ?ǿ??ʹ?????????ˮ?в?????ȫ???롣??????ܹ??ܽ?ܶ??????ᶼ?????ܽ?IJ????????????裩????????̬???ķ????跴Ӧ????ʽ???£?

SiO2(s) + 4 HF(aq) ?? SiF4(aq) + 2 H2O(l)

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??ҵ?Ʒ?????ҵ????өʯ????????CaF2????Ũ??????????????ᡣ???ȵ?250??ʱ???????????ʱ㷴Ӧ???ɷ????⡣??Ӧ????ʽΪ??

CaF2 + H2SO4 ???????ȣ? 2 HF + CaSO4

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F2(g)+H2(g)=2HF(g)

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