| abstract |
A rubber composition for a tire comprises a diene rubber, a petroleum-derived wax, and a fatty acid metal salt, wherein the difference (Δ = Cmw-Cmf) obtained by dividing the carbon number (Cmf) of a fatty acid forming on the is most contained in the fatty acid metal salt subtracted from the carbon number (Cmw) of a hydrocarbon most contained in the petroleum-derived wax, is -10 or more and 8 or less. The rubber composition can suppress whitening of a rubber surface while maintaining ozone resistance. A pneumatic tire comprises a rubber part having the rubber composition, wherein the rubber part is at least one selected from the group consisting of a tread rubber, a sidewall rubber and a rim tape. |