Founded in 1876 and chartered by the U.S. Congress,

the American Chemical Society is one of the world’s

largest non-profit scientific organizations, with more

than 155,000 members in 150 countries.

There are five ACS Local Sections present in Oklahoma.

Oklahoma | Chartered 1919 | Stillwater, OK

MoKanOk | Chartered 1930 | Pittsburg, KS

Tulsa | Chartered 1947 | Tulsa, OK

Northern Oklahoma | Chartered 1955 | Ponca City, OK

Wichita Falls-Duncan | Chartered 1959 | Wichita Falls, TX

The Oklahoma Section of the ACS was chartered on May 14, 1919,

at Oklahoma State University, then Oklahoma A&M College.

The original section encompassed the entire new state of Oklahoma.

The first meeting of the section was held on December 4, 1919, in Stillwater.

As more ACS Local Sections were established in the state,

statewide meetings commenced. The first Trisectional meeting was held in 1947

in Oklahoma City, with an evening address on “Frontiers of Petroleum Chemistry”.

Tetrasectional and Pentasectional meetings followed, and the latter continue today.

In 1926, the Oklahoma Section hosted the 71st national ACS meeting in Tulsa.

The Oklahoma Section also hosted the Southwest Regional ACS meeting

in 1949, 1960, 2003, and most recently 2023.

Members of the ACS at the 71st national meeting in Tulsa in 1926