Separation Techniques ATAR Chemistry Lyss - Coggle Diagram
Separation Techniques ATAR Chemistry Lyss
This involves passing the mixture through a mesh to prevent the bigger particles passing through.
E.G Sieving to remove air bubbles and impurities from flour. Panning for gold.
Filtration involves separating solid objects from a liquid or gas mixture. It provides a barrier that only liquid and gas can pass through, preventing the solid from entering.
E.G. Tea Bags preventing the tea leaves from mixing with the liquid, but also allowing the flavouring to seep into the water. Pool filters filtering out rocks and leaves.
Sedimentation is the process of letting denser particles settle to the bottom of the container over time and then carefully pouring the liquid out whilst the solids stay at the bottom. The process of pouring the liquid into another container is decantation.
E.G Mud settling to the bottom of a pond. Tea leaves settling to the bottom of a tea cup.
If two liquids have different densities then they can be separated with a separation funnel. It is the process of letting two layers settle and then opening a tap, letting the denser object flow out.
E.G. Separating oil and water, and water and gasoline.
Spinning a mixture rapidly at a high speed so the denser particles go to the bottom and the less dense rise to the top.
E.G. Separating plasma and platelets in blood and removing the fat from regular milk to make skinny milk.