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【单选题】
下列有关实验的说法不正确的是A.
当沉淀的颗粒较大时，也可用倾析法将固体和溶液分离
B.
结晶时，若溶质的溶解度越大，或溶液的浓度越高、或溶剂的蒸发速度越快，析出的晶粒就越细小
C.
利用硝酸和硝酸银溶液可区分工业盐和食盐
D.
制备阿司匹林时可能混有少量的聚合物杂质，可用碳酸氢钠溶液进行提纯
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