Originally named Heiser, a heavy metal band, they changed to thrash metal and recorded a full-length in 1994. Some members are now in other bands.   The band also released a 4-track demo called "Demente de la Sociedad" in 1993.   H₂SO₄ is the formula for Sulfuric acid.   Country of origin: Spain Location: Vitoria-Gasteiz, Alava, Basque Country Status: Split-up Formed in: 1992 Genre: Thrash Metal Lyrical themes: Society Last label: Walkiria Years active: 1992-?   César - Bass Isi González - Drums Luis - Guitars Iván - Vocals