The fumigant Vikane® (sulfuryl fluoride) was tested on a selection of materials, including metals, pigments, resins, celluloses, proteins, and dyes. Varying amounts of chemical and physical changes were noted in the materials, some of which could be attributed to the acidic impurities in the fumigant. Fumigations with the impurities removed from the Vikane® caused fewer changes. These results indicate that careful considerations of pest type and materials to be fumigated must be taken into account.