据日本《化学工业》杂志报导:日本某工厂使用石油化学方法制造柠檬酸钙。以前柠檬酸钙大多用于食品工业,现能把它用作发电用的高压锅炉、原子能炉以及石油化工设备的化学洗涤剂。从而开拓了柠檬酸的新用涂。由于柠檬对于奥氏体钢不易发生应力腐蚀,而溶介氧化层的能力比其他有机酸强,反应生成物也较稳定,因此,洗净后的金属表面非常光洁。柠檬酸的腐蚀性极小。比如:温度为60℃的5%盐酸与温度为90℃的30%的柠檬酸相比, According to Japan’s “Chemical Industry” magazine: a Japanese plant using petrochemical methods to manufacture calcium citrate. Calcium citrate, mostly used in the food industry, is now being used as a chemical detergent in high-pressure boilers, nuclear furnaces and petrochemical plants for power generation. Thus opened up the new use of citric acid coating. Lemons are less susceptible to stress corrosion than austenitic steels, and dissolve the oxide layer more strongly than other organic acids, resulting in a more stable reaction product. Therefore, the cleaned metal surface is very bright and clean. Corrosion of citric acid is minimal. For example: 5% hydrochloric acid at 60 ° C compared to 30% citric acid at 90 ° C,