Abstract: A conductive paste composition includes: carbon black having a porous structure and having a DBP oil absorption amount of greater than 240 mL/100 g and a specific surface area of greater than 350 m2/g; and a liquid silicone rubber base composition, in which in a case where the conductive paste composition is dried and cured at 180° C. for two hours to form a conductive film, a content of the carbon black in the conductive film is 4% by mass or greater and 24% by mass or less, and a surface resistance of the conductive film is 1 k? or greater and 9 k? or less.

Abstract: In carbon black of the present invention, peak intensity IA of a main peak derived from Fe3C, peak intensity IB of a main peak derived from FeS, and peak intensity IC of a main peak derived from FeO(OH) in a radial distribution function, which is obtained by performing Fourier transform with respect to a broadband X-ray absorption fine structure spectrum of a K absorption edge, satisfy 0.7?IA(IB+IC)?6.0. A production method for a carbon black of the present invention includes subjecting raw material carbon black to a heat treatment at a temperature of 900° C. to 1500° C. for a time of 5 minutes to 180 minutes under an atmosphere of a halogen element-containing gas.