Dioxygen O2 Oxygen Triplet oxygen 163 Reactions utilise: Oxygen 60 Reactions form: Oxygen O 2      Real, long lived, electronically neutral reagent chemical. Gram formula weight (molecular mass) = 31.998 Melting point = -218 °C Boiling point = -183 °C Purity = 99 % Solubility in water = 4.000e-3 g/100mL Solubility in organics = slightly soluble The triplet state is the ground state. Wikipedia Page: Oxygen is defined with respect to the entities below: The entities below are defined with respect to: Oxygen Binary material (generic) Chalcogen (generic) Diradical (generic) Main group element (generic) Molecular material (generic) Oxidising agent (AS/A2 generic) Per-oxygen oxidising agent (generic) Period 2 element (generic) [O] Oxene Oxygen, 1st excited singlet state Oxygen, 2nd excited singlet state chemical compound molecule metal molecular science reaction mechanism ionic material acid base geometry reactivity synthesis science knowledge chemistry Lewis