Cesium
Chemical reactions
Reaction of cesium with acidsCesium metal dissolves readily in dilute sulphuric acid forming Cs(I) ions and hydrogen, H2.
2 Cs(s) + H2SO4(aq)  2 Cs+(aq) + SO42−(aq) + H2(g)Reaction of cesium with airCesium tarnishes slowly in air as it react with both oxygen and water in the air. If burned in air, the result is mainly formation of the orange cesium superoxide, CsO2.
Cs(s) + O2(g) CsO2(s) [orange]Reaction of cesium with halogensCesium reacts rigorously with all the halogens forming the corresponding cesium halides.
2 Cs(s) + F2(g) 2 CsF(s)2 Cs(s) + Cl2(g) 2 CeCl(s)2 Cs(s) + Br2(g) 2 CeBr(s)2 Cs(s) + I2(g) 2 CeI(s)Reaction of cesium with hydrogenCesium reacts with hydrogen, forming cesium hydride [5].
2 Cs(s) + H2(g) 2 CsH(s)Reaction of cesium with waterCesium reacts violently with water, forming cesium hydroxide (CsOH) and hydrogen, H2.
2 Cs(s) + 2 H2O(l) 2 CsOH(aq) + H2(g) |