Figure 47.
Salts of alkali metals and ammonium, and salts containing nitrate and acetate are always soluble. Carbonates, sulfates, hydroxides, phosphates, and heavy metal salts are typically insoluble in water.
COLLOIDS A colloid is one of three main types of mixtures (with solutions and suspensions being the other two). It is a solution with particles that range from 1 to 1000 nanometers in diameter but that are able to remain evenly dispersed throughout the solution. These are also referred to as colloidal dispersions because they will not settle to the bottom of the container.
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