pH
作者: 图玛化工
来源: 图玛化工
发布时间: 2018-05-11 12:25
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pH
表示水溶液的酸性和碱性的度量单位。由水中氢离子(H3O+)浓度的对数的负数来定义。如果pH值为7溶液是中性的,pH小于7是酸性的,pH大于7是碱性的。
pH
Measures the acidity or the basicity of an aqueous solution. It is defined by the inverse of the log of the concentration of hydronium ion (H3O+) in water. A solution is neutral if the pH value is 7, acidic if the pH is less than 7 and basic when the pH value is higher than 7.