Ever wonder why plutonium got symbol Pu and not Pl?
Which car logo used to be an element symbol?
Where to find americium at home and why Mendeleev didn’t like tellurium?

If so, the Periodic Table Challenge is just for you.

Play now!

in Chemistry International

Apr-June 2020 issue
Nearly 30 years ago, an international structure was set into place with the capacity to coordinate effective environmental cooperation in the Arctic. Practically, the Arctic Monitoring and Assessment Programme (AMAP) is to monitor and assess the levels, trends, and effects of pollutants and climate change on the Arctic ecosystem and the people living there, especially the indigenous peoples. A review of that programme is presented on p. 8.

- Primo Levi vs Dmitri Mendeleev by Elena Ghibaudi (Page 2)
- Towards a Digital IUPAC by Leah R. McEwen (Page 15)
- IUPAC Periodic Table Challenge by Juris Meija (Page 18)

& News, Projects, imPACt, and more ...


Diversity and Inclusion

Chemistry is all about diversity: each new bond, each additional group makes the whole richer and stronger. IUPAC recognizes that to fulfill its vision, it must strongly commit to embracing and promoting transparency, diversity, inclusion, and equal opportunities for all.


IUPAC Structure Review

IUPAC needs the collective wisdom of all of its stakeholders to imagine whether, and how, IUPAC should evolve in order to carry out its tasks most efficiently.
Your input, together with the thoughts and ideas of other stakeholders, will help guide recommendations for the timely evolution of IUPAC and enable its future contributions to the betterment of humankind.

LEARN MORE & Take the survey


The items are designed to promote IUPAC and chemistry worldwide and bring awareness to the work of IUPAC and of course, the IUPAC Periodic Table of Elements!
So, check out the store and see how you could support IUPAC in our vision to be the indispensable worldwide resource for chemistry and celebrate IUPAC100!
Our new store was launched in Paris at the World Chemistry Congress and General Assembly to mark IUPAC’s Centenary celebration in 2019 and the International Year of the Periodic Table.



to access premium content
Starting in July 2018, access to Chemistry International will be restricted to IUPAC Members and Affiliate Members. Authentication will require that you LOGIN for free licensed access to CI.
The default distribution of CI is now digital and those who wish to receive a print copy are invited to subscribe.

LOGIN also to review your profile and mailing address, and to reaffirm what personal information IUPAC can share publicly.


Advancing the Worldwide Role of Chemistry

IUPAC serves the international scientific endeavor in the dual function of a fundamental science and mission-oriented Union. The Union is in a unique position to contribute to the central interdisciplinary chemical sciences.

  • An

    Analytical Chemistry

  • Ph

    Physical Chemistry

  • En

    Chemistry and Environment

  • Or

    Organic Chemistry

  • In

    Inorganic Chemistry

  • Wn

    Chemistry Applied to World Needs

  • Pc

    Publications and Cheminformatics Data Standards

  • Hh

    Chemistry and Human Health

  • Po


  • Nt

    Nomenclature and Terminology

  • Ec

    Chemistry Education

  • Gc

    Green Chemistry for Sustainable Development

  • Ic

    Chemistry and Industry


IUPAC Periodic Table Challenge

Play the Periodic Table challenge to discover the amazing world of chemical elements.

Wonder why plutonium got symbol Pu and not Pl? Which car logo used to be element symbol, where to find americium at home and why Mendeleev didn’t like tellurium?

Join in and find out!

Over 50 nations are Affiliated with IUPAC Is yours? Click to find out

National Adhering Organizations

Learn More

Associate National Adhering Organizations

Learn More

Associated Organizations

Learn More

Company Associates

Learn More

Individual Members

Learn More

Upcoming Event: 1 August 2020

ONLINE Research and Innovations in Chemical Sciences: Paving the Way Forward

Join from anywhere

Upcoming Event: 13 August 2021


IUPAC 2021 Congress - Frontiers in Chemistry

Plan to attend