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Openai/6944ff1d-2674-8011-adde-43f941cba070
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=== Assistant: 結論先給出,再說原因。 === 結論先給出,再說原因。 ==== ### ==== 會形成沈澱(明顯) * 硬水中的 Ca²⁺、Mg²⁺ 會與 磺酸根(–SO₃⁻) 形成不溶或低溶解度鹽 * 表現為: - 清潔力下降 - 泡沫減少 - 容易產生皂垢樣沉積 * 硬水耐受性:差 ===== 會形成沈澱(但比 LAS 輕微) ===== * 硫酸酯鹽(–OSO₃⁻) 仍會與 Ca²⁺、Mg²⁺ 作用 * 生成 Ca/Mg lauryl sulfate,溶解度有限 * 表現: - 高硬度水下起泡與清潔力下降 - 可能有輕微白濁或沉積 * 硬水耐受性:中等偏差 ===== 基本不會形成沈澱 ===== * 聚氧乙烯(EO)鏈提供空間位阻與親水性 * Ca²⁺、Mg²⁺ 不易形成穩定不溶鹽 * 即使在高硬度水中仍能保持溶解 * 硬水耐受性:佳 ==== | | | | ==== | --- | --- | --- | | | | | | | | | | | | | ==== - 硬水地區若使用 LAS 或 SLS: - 必須添加 螯合劑(如:EDTA、GLDA、檸檬酸鈉) - 或與 非離子界面活性劑 複配以降低沈澱風險 ==== * 這也是為什麼家用洗碗精幾乎全面使用 SLES 或非離子,而非純 LAS。 如果你需要,我可以依 水硬度數值(ppm CaCO₃) 幫你計算最低螯合劑添加量。
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