The use and function of centrifuge

Centrifuge is a machine that uses centrifugal force to separate liquid and solid particles or each component in a mixture of liquid and liquid.
  
The centrifuge is mainly used to separate the solid particles in the suspension from the liquid; or to separate the two incompatible liquids in the emulsion with different densities (for example, separating cream from milk); it can also be used to remove Liquids in wet solids, such as drying wet clothes with a washing machine; special ultra-velocity tube separators can also separate gas mixtures of different densities; using the characteristics of different density or size of solid particles in the liquid to settle at different speeds, and some sedimentation The centrifuge can also classify solid particles according to density or particle size.
  
  How to use the centrifuge:
  
  In the course of the experiment, to separate the precipitate from the mother liquor, two methods of filtration and centrifugation are often used. However, in the following cases, the centrifugal method is better.
  
  ①The sediment is viscous or the mother liquor is viscous.
  
  ②Small precipitation particles, easy to penetrate the filter paper.
  
  ③The amount of precipitation is too much and loose.
  
  ④The amount of precipitation is small, and quantitative determination is needed. Or the amount of mother liquor is small, so the loss should be reduced during separation.
  
  ⑤The precipitation and mother liquor must be separated quickly.
  
  ⑥General colloidal solution.