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硫酸铜又名蓝矾、石胆,为透明深蓝色结晶或粉末,金属味,在空气中慢慢风化,易溶于水,水溶液呈弱酸性,有收敛作用及较强的杀病原体能力。硫酸亚铁又名绿矾、青矾、皂矾,为透明淡绿色结晶或粉末,味咸涩,带金属性,在干燥的空气中易风化,易溶于水,水溶液呈中性,在潮湿空气中或水溶液放置过久都易氧化
Copper sulfate, also known as blue alum, stone gall, transparent dark blue crystal or powder, metallic taste, slowly weathering in the air, soluble in water, aqueous solution was weakly acidic, with convergence and strong ability to kill pathogens. Ferrous sulfate, also known as green alum, blue alum, soap alum, as a transparent light green crystal or powder, salty astringent, metallic, easy to weathering in dry air, soluble in water, neutral aqueous solution, Air or water solution for too long are easy to oxidation