So salting out can be used to isolate a protein of interest from a mixture of different proteins. And in our example, we're going to look at a mixture of two proteins. So one of these proteins is a blood clotting protein known as fibrinogen. And another protein is serum albumin. And this is a protein that carries lipids, for example, fatty acids and cholesterol inside our blood plasma. Now, for fibrinogen, which is shown in green, this protein requires a concentration of 0.8 molar of ammonium sulfate to basically precipitate.