UNI-SAFE is a chemical and oil binding medium universally applicable to all liquids. Non-poisonous, skin compatible and non-allergic. Non-combustible and dust-free. Super absorbent – absorbs up to 75 times its own weight (1kg absorbs up to 75L). Safe to use on any chemical* - even the really nasty stuff like hydrofluoric Acid and fuming Nitric Acid. Raw pH indicators turn yellow when absorbing acids and red/orange when absorbing alkaline. Incredibly lightweight making it easy to handle. Contains 250 ml.