手工皂,原料里有烧碱,即氢氧化钠。
“手工皂與化學清潔劑不同,在與水接觸后大約24小時后,會被細菌分解成水與二氧化碳。”
==〉钠到哪里去了?
以前洗衣服用的黄肥皂,差不多就是现在时髦的手工皂。那玩艺,用多了烧手。
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