Liquid phosphite used as antioxidant and mixture thereof

The invention discloses liquid phosphite used as an antioxidant and a mixture of the liquid phosphite. The liquid phosphite comprises phosphite with a structural formula of (R1O) (R2O) (R3O) P or a blend of the phosphite. Wherein R1, R2 and R3 are independently selected alkylated aryl, ester aryl, thioether aryl, styrenated aryl, ether aryl, ketone aryl, alkoxy aryl and olefin aryl, and at most two of R1, R2 and R3 are alkylated aryl. 一种用做抗氧剂的液体亚磷酸酯及其混合物，由含有结构式为(R1O)(R2O)(R3O)P的亚磷酸酯或其共混物组成。其中R1，R2，R3是独立选择的烷基化芳基、酯代芳基、硫醚代芳基、苯乙烯化芳基、醚代芳基、酮代芳基、烷氧基代芳基、烯烃代芳基，并且R1，R2，R3中最多有两个是烷基化芳基。