3B- Crystallisation I by Sharizah https://padlet.com/rizarox/vooboeim8un9 Made with a dash of wit en-us 2018-01-26 23:57:12 UTC 2018-02-04 07:44:13 UTC hello@padlet.com The Use of crystallization nicholas_lai_dong_en https://padlet.com/rizarox/vooboeim8un9/wish/227737362 Crystallization is a process that can help industries, example like industries that mass production of crystals ,such as the production of edible salt. This can help other industries to think of more way to use this type of process to make more different type of food for people. ]]> 2018-02-03 11:54:03 UTC https://padlet.com/rizarox/vooboeim8un9/wish/227737362 The Precautions of Crystallization nicholas_lai_dong_en https://padlet.com/rizarox/vooboeim8un9/wish/227738338 1. Picking a suitable solvent for the process,  the solvent must dissolves moderately a large amount of compound at a high temperature.  Also must not dissolve at a low temperature even room temperature.

2. When heating the solvent remember to use a boiling chip to help making boiling much more calmly. If there is too much solvent  it cannot form properly during the cooling process of crystallization.

]]> 2018-02-03 12:09:30 UTC https://padlet.com/rizarox/vooboeim8un9/wish/227738338 The type of mixtures nicholas_lai_dong_en https://padlet.com/rizarox/vooboeim8un9/wish/227746912 The most common one is Copper(II) Sulfate.
It occurs heating it up when it dissolves it in water. When the temperature of the solvent cools down its when crystals starting to form.]]> 2018-02-03 13:02:55 UTC https://padlet.com/rizarox/vooboeim8un9/wish/227746912 Steps for crystallization nicholas_lai_dong_en https://padlet.com/rizarox/vooboeim8un9/wish/227815555 1. Choosing a proper solvent for the process , the solvent must dissolve in water for crystallization to work.
2.Dissolving the solvent in the water with a glass rod to increase the of the dissolving of the solvent. But first is to pour some crush solvent into the test tube or flask then dissolve in the water.
3.Need to Decolorize the solution first ,then boil the solution.
4.Removing the solids by filtration.
5.Allowing it to cool of at room temperature ,crystals will start to form .
6.Collect the crystal by filtration so that the crystals will not pass through the filter paper. This can be done using a pipette.
7.Drying the crystal by gently pressing against it using sheets of filter paper .This is one of the easiest way to do it.


]]> 2018-02-04 06:48:56 UTC https://padlet.com/rizarox/vooboeim8un9/wish/227815555