the solution are heated before mixi

the solution are heated before mixing to increase the solubility of the product that will precipitate.If the solution is less supersaturated during the precipitation,crystals form more slowly and grow to be larger and purer than if they precipitate rapidly.The larger crystals are easier to filter.

結果 (繁體中文) 1:

溶液混合，以增加將precipitate.If溶液中的沉澱過程中較少的過飽和產物的溶解度之前進行加熱，晶體形成更慢和成長為比如果更大和更純它們沉澱rapidly.The更大的晶體更容易過濾。

結果 (繁體中文) 2:

溶液在混合前加熱，以增加沉澱產物的溶解度。如果溶液在沉澱過程中超飽和程度較低，晶體形成速度會比快速沉澱時更慢、更純淨。較大的晶體更容易過濾。

結果 (繁體中文) 3:

溶液在混合之前被加熱，以新增沉澱產物的溶解度。如果沉澱過程中溶液過飽和程度較低，則晶體的形成比快速沉澱時更慢，生長更大和更純淨。較大的晶體更容易過濾。