METHOD FOR PURIFYING DIFLUOROACETIC ACID CHLORIDE

摘要

[Problem] To provide a method for producing a highly pure difluoroacetic acid chloride composition product that at least contains difluoroacetic acid fluoride, by using a simple means and a simple device. [Solution] A method for purifying difluoroacetic acid chloride, including the step of bringing a difluoroacetic acid chloride composition that contains at least difluoroacetic acid fluoride into contact with calcium chloride at a temperature enabling reaction thereof thereby converting the difluoroacetic acid fluoride into difluoroacetic acid chloride.