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Lv 4
建哥 發問時間: 科學化學 · 1 0 年前

Sodium Lauryl Ether Sulfate


4 個解答

  • Tiger
    Lv 5
    1 0 年前


    Sodium laureth sulfate, or sodium lauryl ether sulfate (SLES), is a detergent and surfactant found in many personal care products (soaps, shampoos, toothpaste etc.). It is an inexpensive and very effective foamer.Its chemical formula is CH3(CH2)10CH2(OCH2CH2)nOSO3Na. Sometimes the number represented by "n" is specified in the name, as laureth-n sulfate (unsubscripted), for example laureth-2 sulfate. The product of commerce is heterogeneous, both in the length of the alkyl chain (12 being the mode of the number of carbon atoms), and in the number of ethoxyl groups, where n is the mean. n=3 is a common article of commerce. SLES can be derived from ethoxylation of SDS.Sodium dodecyl sulfate (SDS; also known as sodium lauryl sulfate or SLS) and ammonium lauryl sulfate (ALS) are commonly used alternatives to SLES in consumer products, although are more harsh on skin. [1]Anecdotal evidence and research suggests SLS/SLES irritates the eyes and skin through extended exposure. It also results in an increase in mouth ulcers (most commonly canker sores, RAS, Recurrent Aphthous Stomatitis), possibly through a disruptive/denaturing effect on the oral mucin layer.洗髮精會致癌?洗髮精的成分除了水及介面活性劑外,還有2. 起泡劑(Foambooster)--          為了讓消費者洗頭時心理上覺得泡沫越多越有效(事實上無絕對關係),有物超所值的感覺,廠商常添加了許多泡沫促進劑,前陣子網路上盛傳有許多牌子的洗髮精裏有Sodium Laureth Sulfate這種會致癌的成份,但後來經調查後說SLS主要的作用就是產生泡泡用的, 不會致癌。而美國CTFA4/16/1999 的報導,強調關於SLS會致癌的消息是典型的Internet Rumors, 就是 網 路 謠 言 啦! CTFA 是The Cosmetic, Toiletry, and Franrance Assocaiton 網 址 是,有心的網友可以上去查詢看看。 

    參考資料: from Tiger &
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  • 10 年前

    如果所謂的研究結果說哪些東西會致癌, 哪些東西不會致癌是可信的話, 那為什麼醫學科技高度發展的美國罹患癌症的比率如此高? 二次世界大戰後, 農藥.化工.醫葯.塑料.食品添加劑...等等人造合成品, 大量而全面的充斥我們四周, 這要如何研究呢? 一定要等到所有的科學家.醫生.衛生署官員都全部同意這條化學方程式: 農藥+化工+醫葯+塑料+食品添加劑+壓力=癌症, 我們才能避免這種無形的恐懼嗎? 或者無所謂, 反正大家還不都過得好好的, 只要定期健康檢查就好啦! 常常這個不能吃.那個不能用, 不是增加壓力嗎? 萬一真的檢查到了, 開刀割除.化療就好啦! 有這麼簡單輕鬆嗎? 覺醒吧!


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  • 1 0 年前


    2006-06-26 22:04:16 補充:


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  • 1 0 年前
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