article ini diambil dari chemistry.com
How to Make Liquid Magnets Imtroduction
A liquid magnet or ferrofluid is a colloidal mixture of magnetic particles (~10 nm in diameter) in a liquid carrier. The carrier contains a surfactant to prevent the particles from clumping together. Ferrofluids can be either water-based (the usual form for chemistry demonstrations) or organic-based (as in oils [...]
