Skip to Content, Navigation, or Footer.
Logo of The Middlebury Campus
Saturday, Dec 6, 2025

News


a12pf_warner_190x-06

Tear gas traces its roots back to Middlebury

In 1928, Ben Corson and Roger Stoughton were investigating the reaction between carbonyl compounds and malononitrile in Warner Hall at Middlebury College when they discovered 2-chlorobenzylidene malononitrile (CS). Even though it garnered little attention when published in the Journal of American Chemistry ...