Tovarium (Tv) is an element prized for its resilience to chemical reactions.
Due to this high resistance to chemical reactions, it is mainly used in alloys for storing hazardous and volatile substances such as Vespene gas (DC Comics: Inertron; Transformers - Prime: Energon cube). When used in Neosteel alloys, containers are able to withstand small arms fire and limited amounts of energy from particle and laser weaponry.
Trace amounts of Tovarium have been found in samples of Zerg creep. Scientists speculate the trace amounts or by-products of the substance are used to prevent explosive strains from prematurely detonating.