Unverified75% confidenceDecision RuleTime unknown
纯草木灰不溶于水(灰渣沉淀),真正可直接溶解使用的产品是经过滤提纯的碳酸钾结晶粉。若产品溶解后有大量黑色不溶残渣,说明是粗滤原灰,会残留纤维缝隙难漂洗
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