is a hydrocarbon in which
a hydrogen atom has been replaced with the highly polar (SO2OX)
group, where X is a metallic ion or alkyl radical.
Petroleum sulfonates are refinery by-products
of the sulfuric acid treatment of white oils.
Sulfonates have important applications as
emulsifiers and chemical intermediates in
petrochemical manufacture. Synthetic sulfonates can be manufactured from
special feedstocks rather than from white oil
basestocks.