用纸层析法分离红蓝墨水后,如从滤纸上取得红色色素和蓝色色素?
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发布时间：2024-10-14 11:26
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时间：2024-11-14 11:04
墨水为水溶性有机染料,，红墨水和蓝墨水的染料成分在同一有机溶剂的溶解速率不同，进而，染料“爬”上纸的高度不同，从而实现分离。················································································································································他们都是混合物 如何分离啊 不就把它们自己分了???回答这里分离是指颜色分离吧,分离原理一句话就是利用红墨水和蓝墨水里面的染料对有机溶剂(如石油醚)的溶解度不同实现分离.物质分离在纸上··························································································································································································请采纳
