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什麽是水的硬度?釀造用水的硬度是如何區分的?

作者：山東天泰人氣：发布日期： 2021-03-08

信息摘要：

水的硬度是指水中離子(主要是鈣離子、鎂離子)沈澱硬脂酸鈉(皂化)的能力。
釀造用水的硬度區分見表1-1 區分最軟水軟水普通硬水中等硬水硬水最硬水

水的硬度是指水中離子(主要是鈣離子、鎂離子)沈澱硬脂酸鈉(皂化)的能力。

釀造用水的硬度區分見表1-1

區分	最軟水	軟水	普通硬水	中等硬水	硬水	最硬水
總硬度 /(mmol/L)	0~1.43	1.78~2.85	3.21~4.28	4.64~6.42	6.78~10.70	>10.70

注:水的硬度表示法有化学表示法(指每1L水中含CaCO3的物质的量,单位为mmol/)和习惯表示法(每1l水中含10 mg定义为1个德国度,单位为dH);这里水的硬度为化学表示法;化学表示法中1mmol/L的水硬度相当于习惯表示法中1.402dH的水硬度。

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