tyhjiösuodatus

Tyhjiösuodatus, also known as vacuum filtration, is a laboratory technique used to separate a solid from a liquid using a vacuum. This method is particularly effective when the solid particles are fine or when the liquid needs to be removed quickly. The process involves drawing the liquid through a filter medium, such as filter paper or a sintered glass funnel, by applying a vacuum to the side of the filter opposite the solid-liquid mixture.

The apparatus typically consists of a Buchner funnel or a similar filter funnel, a filter flask, a vacuum source, and connecting tubing. The filter paper is placed in the funnel, and the solid-liquid mixture is poured onto it. When the vacuum is applied, the liquid is pulled through the filter paper and into the filter flask, leaving the solid behind. This results in a cleaner separation and a drier solid compared to gravity filtration.

Tyhjiösuodatus is widely used in various scientific disciplines, including chemistry, biology, and environmental science. It is employed for tasks such as collecting precipitates from reaction mixtures, isolating microorganisms from liquid cultures, and purifying chemical compounds. The efficiency of tyhjiösuodatus makes it a preferred method for applications requiring rapid and thorough separation of solids and liquids.