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针对引起壬基酚产品变色的主要原因，利用加二乙基羟胺稳定剂等方法，达到控制壬基酚产品颜色变化的时间的目的。
Aiming at the main reason of discoloration of nonylphenol product, the method of controlling the color change of nonylphenol product by the method of adding diethylhydroxylamine stabilizer and so on is adopted.