https://mamechi.org/index.php?action=history&feed=atom&title=%E6%B1%9A%E3%82%8C%E3%81%A8%E6%B4%97%E5%89%A4%E3%81%AF%E7%9B%B8%E6%80%A7%E3%81%A7%E9%81%B8%E3%81%B6%2Fen汚れと洗剤は相性で選ぶ/en - 版の履歴2026-10-29T16:29:53Zこのウィキのこのページに関する変更履歴MediaWiki 1.43.11https://mamechi.org/index.php?title=%E6%B1%9A%E3%82%8C%E3%81%A8%E6%B4%97%E5%89%A4%E3%81%AF%E7%9B%B8%E6%80%A7%E3%81%A7%E9%81%B8%E3%81%B6/en&diff=1486&oldid=prevMamechiAdmin: 英語訳を取り込み（pages/translations_en.json）2026-10-29T13:17:55Z<p>英語訳を取り込み（pages/translations_en.json）</p>
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{{豆知識<br />
|番号=0025<br />
|本文=Fingerprints, skin oil and grease come off more easily with alkaline cleaners (baking soda, sodium sesquicarbonate and the like), and limescale with acidic ones (citric acid, vinegar).<br />
|なぜ=Whether a cleaner works depends on how it pairs with what the grime is made of. Fatty acids in skin oil react with alkalis and come away more easily, while calcium and other main components of limescale dissolve in acid.<br />
|ジャンル=生活・家事<br />
|ファクト度=A<br />
|ファクト度の根拠=Confirmed by explanations from two cleaner manufacturers. Following a journal paper, the "neutralization" explanation is not used<br />
|ネタ度=S<br />
|ネタ度の根拠=Includes a correction to the familiar "acidic grime / alkaline grime" explanation<br />
|便利度=S<br />
|便利度の根拠=Immediately useful for choosing cleaners all around the house<br />
|検証ステータス=根拠あり<br />
|根拠1URL=https://www.live-science.com/honkan/jissen/acid.html<br />
|根拠1要約=Explanation by a cleaner manufacturer (Seikatsu to Kagaku Sha): fingerprints, grease and tobacco tar can be removed with alkali; so-called limescale is the grime that acid removes<br />
|根拠1格付け=一次<br />
|根拠2URL=https://note.kao.co.jp/n/nc5fe899cd7fa<br />
|根拠2要約=Explanation by Kao: fatty acids in skin oil react in weakly alkaline wash water and come away more easily<br />
|根拠2格付け=一次<br />
|根拠3URL=https://www.jstage.jst.go.jp/article/jhej/72/4/72_197/_pdf<br />
|根拠3要約=Komatsu and Oya, "Problems with the acid–alkali neutralization theory of cleaning", Journal of Home Economics of Japan 72(4), 2021: describing poorly water-soluble limescale as "alkaline grime" is inappropriate<br />
|根拠3格付け=一次<br />
|補足=Grime is often described as "acidic" or "alkaline" and said to be removed by neutralizing it, but a 2021 paper in the Journal of Home Economics of Japan calls that description inappropriate for poorly water-soluble grime such as limescale. This article covers only which cleaner works on which grime. Mixing chlorine-based cleaners with anything acidic releases a toxic gas.<br />
|投稿者=まめち編集部<br />
|検証日時=2026-10-29<br />
|検証方式=AI＋人<br />
|本家既出チェック=未確認<br />
}}</div>MamechiAdmin