Toll definition, a payment or fee exacted by the state, the local authorities, etc., for some right or privilege, as for passage along a road or over a bridge. See more. Dictionary.com
The International Union of Pure and Applied Chemistry (IUPAC, /ËaÉªjuËpÃ¦k/ or /ËjuËpÃ¦k/) is an international federation of National Adhering Organizations that represents chemists in individual countries. It is a member of the International Council for Science (ICSU).
SAO PAULO, BRAZIL 2017. For the first time in South America, IUPAC will bring an entire continent of chemists closer to the global community. We will deliver an unforgettable IUPAC Congress, energized by the passion, hospitality and creativity of the Brazilian people.