الاتحاد الدولي للكيمياء البحتة والتطبيقية
The English and French-speaking countries adopted Davy and Gay-Lussac/Thénard's name "Potassium", whereas the Germanic countries adopted Gilbert/Klaproth's name "Kalium". The "Gold Book" of the International Union of Pure and Applied Chemistry has designated the official chemical symbol as K.