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Key Terms: Crystalline Suspension, Crystalline Precipitate, Colloidal Precipitate, Colloidal Suspension, Ionic Compound, Precipitants, Precipitation, Relative Supersaturation, SolubilityĬolloidal precipitates are solid masses formed in colloidal suspensions. What is the Difference Between Colloidal and Crystalline Precipitate The main difference between colloidal precipitate and crystalline precipitate is that colloidal precipitates do not form easily and are difficult to be obtained via filtering whereas crystalline precipitates are easily formed and are easily obtained via filtering. Colloidal precipitates are formed in colloidal suspensions while crystalline precipitates are formed in crystalline suspensions. There are two types of suspensions as colloidal suspensions and crystalline suspension based on the particle size in the suspension. But later on, the precipitate particles will sediment to the bottom of the container unless disturbed. The formed precipitate may stay as a suspension in the solution if there isn’t sufficient gravity. The low temperature reduces the solubility of salts, causing them to precipitate in the solution. In addition, precipitates can form when the temperature of the solution is lowered. The chemical species that cause this precipitation is called precipitants. Then these ions can react with each other to form a precipitate or stay as a solubilized ion in that solution. Soluble ionic compounds can break into their ions in the solution. A precipitate is formed when two soluble ionic compounds are mixed. Precipitation is the formation of an insoluble solid mass in a liquid solution this insoluble solid mass is called the precipitate. Precipitation reactions are also useful to extract elements, like magnesium, from seawater.Main Difference – Colloidal vs Crystalline Precipitate For example, a barium nitrate solution will react with sulfate ions to form a solid barium sulfate precipitate, indicating that it is expected that sulfate ions are present. Precipitate development is valuable in the detection of the type of cation in a salt. Subsequently, the precipitate may easily be separated by filtration/decanting or centrifugation. Antisolvent is added - This radically drops the solubility of the desired product.Using a supersaturated solution - Without sufficient force of gravity (settling) to bring the solid particles together, the precipitate remains in suspension.The chemical that leads the solid to form is called the precipitant. Temperature of a solution is lowered - The lower temperature reduces the solubility of a salt, resulting in its precipitation as a solid.Two soluble salts react in solution to form one or more insoluble products.Powders derived from precipitation are known as flowers. The precipitate-free liquid remaining above the solid is called the supernate or supernatant. Precipitate is referred to as a pellet after sedimentation when using a centrifuge to press it into a compact mass. When the reaction occurs in a liquid solution, the solid formed is called the precipitate. Precipitation is the creation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid.