Solvent naphtha, also known as solvent benzene, heavy benzene or aromatic naphtha, is the collective term for mixtures of light aromatic hydrocarbons that are obtained from coal tar, petroleum or oil shale. Under standard conditions, Solvent Naphtha is a colorless liquid with a pungent odor. | However, solvent naphtha is now also being produced from petroleum distillation products by catalytic reforming.