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目前，食醋中游离矿酸的测定采用百里草酚蓝和甲基紫试纸法，这两种试纸对于食用醋酸和非食用醋酸（工业合成醋酸）无法鉴别。笔者提供用碘酸汞盐的碱溶液可测定工业合成醋酸中的无机酸铵盐，来鉴定是否为食用醋酸。方法如下。实验灵敏度为０．０２％。１实验原理：食用醋...
At present, the determination of free mineral acids in vinegar is based on the test strips of Thymol and Methyl Violet, which are not identifiable for the consumption of acetic acid and non-food acetic acid. The author provides alkali solution of mercuric iodide for determination of inorganic acid ammonium salts in industrial synthetic acetic acid to identify if it is edible acetic acid. Methods as below. Experimental sensitivity of 0.02%. 1 experimental principle: edible vinegar ...