... Fuming nitric acid 发烟硝酸 Fuming sulphuric acid 发烟硫酸 Furfurane (Furane) 呋喃(一氧二烯伍圜) ...
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N a mixture of pyrosulphuric acid, H2S2O7, and other condensed acids, made by dissolving sulphur trioxide in concentrated sulphuric acid 发烟硫酸 (Also called oleum, Nordhausen acid)
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