The Corrosive Solvent is a neon-blue liquid chemical solution used by the Yautja. It is carried in small vials and quickly breaks-down and dissolves Xenomorph bio-mass on contact. This substance is extremely corrosive, and reacts violently with water. A small amount of it (2 vials worth) was able to completely evaporate an olympic-sized swimming pool, along with 2 corpses that were submerged in it. This blue-solvent was used by the predator Wolf during his mission to contain a Xenomorph infestation on Earth.