Hydrofluoric Acid
Hydrofluoric acid is a colourless liquid containing more than 40% w/v of hydrogen fluoride; it emits suffocating fumes which smell rather like chlorine.聽 As a chemical reagent it is very reactive and although in its combined mineral form it is inert, in other forms it produces severe reaction in man.聽聽
Due to the extremely hazardous nature of the substance please contact Health and Safety before starting any new activity.