Elemental sulfur is very corrosive to carbon steel. Literatures have shown that the corrosion rate of carbon steel in contact to elemental sulfur could be several inches per year. This paper studies effect of the sulfur species on corrosion of carbon steel. The effect of sulfur solvents on form of sulfur species on corrosion rates and mechanism was investigated. The high level of corrosion mitigation strategy was proposed to control the corrosion in the environment.