Caustic soda:
Sodium Hydroxide, commonly known as caustic soda, lye, or sodium hydrate, is a caustic compound which attacks organic matter. (caustic soda is sodium hydroxide, caustic potash is potassium hydroxide and silver nitrate is lunar caustic.) (snip)
APPLICATIONS
Direct application,(pulp and paper, soaps and detergents, aluminia, petroleum, textiles, water treatment,); organic chemicals, (propylene oxide, polycarbonate, ethyleneamines, epoxy resins,); inorganic chemicals, (sodium/calcium hypochlorite, sulfur-containing compounds, sodium cyanide, )
Ok. So it wasn't what I used in my last baking disaster ^-^
Chemical weaponery?
lunar caustic?