PETRONATE H is an all-natural medium molecular weight first intent sodium sulfonate recommended for use in soluble oils and semi-synthetic fluids to impart all of the benefits of natural sodium sulfonate. PETRONATE H has better emulsibility properties compared to the high molecular weight all-natural sodium sulfonates and better corrosion protection characteristics compared to the low molecular weight all-natural sodium sulfonates. Nominal dosages would range from 1.0 to 10.0 wt. % of the finished soluble oil or semi-synthetic fluid. PETRONATE H is compatible with most mineral base oils, white oils, and synthetic base stocks. PETRONATE H provides benefits such as better emulsibility and corrosion protection for industrial applications.