Erlenmeyer flask dimensions into the hottest 50 place solution to cool at room temperature, there are crystals formed and then soaked in cold water for approximately 20 minutes to complete residual, Crystal.
In erlenmeyer Hot flask 50 put the solution to cool to room temperature, crystals are formed. Then immersed in a tub of cold water for about 20 minutes. To complete the crystals fall
In the Erlenmeyer. Hot flask size 50 put the solution to cool to room temperature are crystals occur. Then soak in the bathtub cool about 20 minutes to Crystal Falls completely.