重曹は磨き粉向き、セスキ炭酸ソーダは油汚れ向き/enのソースを表示

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{{豆知識
|番号=0026
|本文=Baking soda and sodium sesquicarbonate are both weakly alkaline, but sesquicarbonate is more alkaline and dissolves more easily, so it suits wiping or soaking greasy grime. Baking soda, whose grains do not dissolve easily, suits scrubbing as a scouring powder.
|なぜ=The pH (degree of acidity or alkalinity) of the solution is 8.2 for baking soda (2%, 20°C) and 9.8 for sodium sesquicarbonate (1%, 25°C). Baking soda has fine particles that do not dissolve easily, so it works as a cleanser.
|ジャンル=生活・家事
|ファクト度=A
|ファクト度の根拠=pH and solubility confirmed in manufacturer material; the comparison of how easily they dissolve is the manufacturer's description, not a figure
|ネタ度=A
|ネタ度の根拠=Two similar white powders, told apart with numbers
|便利度=A
|便利度の根拠=Makes clear which one to buy and use
|検証ステータス=根拠あり
|根拠1URL=https://www.live-science.com/honkan/partner/bicarbonate01.html
|根拠1要約=Manufacturer (Seikatsu to Kagaku Sha) on baking soda: its solution is very weakly alkaline at pH 8.2 (2%, 20°C); its fine particles do not dissolve easily, so it can be used as a cleanser
|根拠1格付け=一次
|根拠2URL=https://www.live-science.com/honkan/partner/sesquicarbonate01.html
|根拠2要約=The same manufacturer on sodium sesquicarbonate: dissolves easily in water; its solution is weakly alkaline at pH 9.8 (1%, 25°C)
|根拠2格付け=一次
|補足=pH varies with concentration and temperature; the same manufacturer gives baking soda as pH 8.4 elsewhere, so values vary. The claim that sesquicarbonate dissolves more easily rests on the manufacturer's description, not on figures under the same conditions. Baking soda is not suitable for aluminium.
|投稿者=まめち編集部
|汚れの性質=酸性の汚れ
|効く成分=セスキ炭酸ソーダ・重曹
|検証日時=2026-10-29
|検証方式=AI＋人
|本家既出チェック=本家に既出
|本家の該当ページ=https://ja.wikipedia.org/wiki/炭酸水素ナトリウム
|派生元=汚れと洗剤は相性で選ぶ
}}