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Alpha Chi Sigma
The official crest of Alpha Chi Sigma.
Founded December 11, 1902 (1902-12-11) (107 years ago)
University of Wisconsin–Madison
Type Professional
Scope National
Colors      Prussian blue

     Chrome yellow

Publication Hexagon
Chapters Collegiate: 48 active; 3 pending
Professional: 9 chapters; 8 groups
Headquarters 2141 North Franklin Road
Indianapolis, Indiana, USA

Alpha Chi Sigma (ΑΧΣ) is a professional fraternity specializing in the field of chemistry. It has both collegiate and professional chapters throughout the United States consisting of both men and women and numbering over 59,300 members. The fraternity aims to bring together students and professionals pursuing a wide variety of chemistry-related careers.





The Alpha Chi Sigma fraternity was organized at the University of Wisconsin–Madison in late 1902 by a group of undergraduates who were fellow students in chemistry at that time. Later documents set the date of founding as December 11, 1902. The original founders were:

  • Raymond Tracy Conger
  • Harold Everett Eggers
  • Joseph Gerard Holty
  • Alfred Emil Kundert
  • Joseph Howard Mathews
  • Edward Gustav Mattke
  • Bart Eldred McCormick
  • Frank Joseph Petura
  • James Chisholm Silverthorn

Coat Of Arms

The seven symbols that stretch the length of the coat of arms are the "seven metals of the Ancients": gold, silver, iron, mercury, tin, copper, and lead. These symbols correspond to planets, gods, and days of the week [1].

Metal Gold Silver Iron Mercury Tin Copper Lead
God/Celestial Body Sol/Sun Luna/Moon Mars Mercury Jupiter Venus Saturn
Day of the Week Sunday Monday Tuesday Wednesday Thursday Friday Saturday

The rest of the symbols on the coat of arms are revealed only to those that go through the initiation ritual. This ritual secrecy is common practice among fraternities and sororities in the United States.


The Three Objects of Alpha Chi Sigma:

  1. To bind its members with a tie of true and lasting friendship.
  2. To strive for the advancement of chemistry both as a science and as a profession.
  3. To aid its members by every honorable means in the attainment of their ambitions as chemists throughout their mortal lives.


Membership to the Alpha Chi Sigma professional chemistry fraternity is open to collegiate and professional men and women with a strong interest in chemistry. Membership is for life. Those who are interested in becoming a member should contact their local (or nearest) chapter for further information about pledgeship and membership.

Famous Members

Nobel Prize in Chemistry

"for his contributions to our knowledge of molecular structure through his investigations on dipole moments and on the diffraction of X-rays and electrons in gases."

"for [his] discoveries in the chemistry of the transuranium elements."

"for his research into the nature of the chemical bond and its application to the elucidation of the structure of complex substances."

"for his work on biochemically important sulphur compounds, especially for the first synthesis of a polypeptide hormone."

"for his method to use carbon-14 for age determination in archaeology, geology, geophysics, and other branches of science."

"for the discovery of the reciprocal relations bearing his name, which are fundamental for the thermodynamics of irreversible processes."

"for his fundamental achievements, both theoretical and experimental, in the physical chemistry of the macromolecules."

"for his studies on the structure of boranes illuminating problems of chemical bonding."

"for [his] development of the use of boron-containing compounds into important reagents in organic synthesis."

"for his development of methodology for chemical synthesis on a solid matrix."

"for developing new ways to synthesize complex molecules ordinarily found in nature."

"for his contributions to the theory of electron transfer reactions in chemical systems."

""for the discovery and development of conductive polymers"

Nobel Prize in Physiology or Medicine

"for his discovery of the chemical nature of vitamin K."

"for [his] discovery that genes act by regulating definite chemical events."

"for [his] interpretation of the genetic code and its functions in protein synthesis."

"for [his] discoveries of Important Principles for Drug Treatment."

"for their discoveries concerning magnetic resonance imaging"

Nobel Prize in Physics

"for pioneering contributions to astrophysics, in particular for the detection of cosmic neutrinos."

Nobel Prize in Peace

"for warning of the dangers of radioactive fallout in nuclear weapons testing and war."

Priestley Medal

  • Farrington Daniels, Beta 1908, (1957). 1953 President of the American Chemical Society,, solar and nuclear energy pioneer.
  • Roger Adams, Zeta '12, (1946). Developed Adams' catalyst, 1935 president of the American Chemical Society, 1950 president of the AAAS.
  • James Bryant Conant, Omicron '12, (1944). President of Harvard University from 1933 to 1953, oversaw the Manhattan Project, winner of the Presidential Medal of Freedom.
  • Joel Henry Hildebrand, Sigma 1913, (1962). Replaced nitrogen in scuba tanks with helium and oxygen, the American Chemical Society's Joel Henry Hildebrand is named for him, president of the Sierra Club from 1937 to 1940. Winner of virtually every chemical award except the Nobel Prize.
  • Darleane Hoffman, Sigma 1988, (2000). Also winner of ACS Award in Nuclear Chemistry, US Medal of Science.
  • Warren K. Lewis, Alpha Zeta 1925, (1947). Called Father of Modern Chemical Engineering. Also won first American Chemical Society of Award in Industrial and Engineering Chemistry, the AIChE Founders Award, and the Perkins Medal. Introduced the concept of the unit operation.
  • M. Frederick Hawthorne, Beta Delta 1949 (2008) Noted Boron Chemist, Director of the International Institute of Nano and Molecular Medicine at the University of Missouri. Also won the King Faisal Award for Science.

Other Notable Brothers

Collegiate Chapters

Professional Chapters & Groups

  • Research Triangle Park Professional Chapter
  • San Antonio Professional Group
  • Southern Indiana Professional Group
  • Southwest Virginia Professional Group
  • St. Louis Professional Chapter
  • Sun Cities Professional Group
  • Twin Cities Professional Group
  • Washington, DC Professional Chapter

External links


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