Crystallization - Chem Definition
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Uploaded by periodicvideos on May 9, 2011
Why are bearded chemists better at crystallization?
More chemistry at http://www.periodicvideos.com/
- 634 likes, 2 dislikes
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Top Comments
All Comments (186)
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Oh don't do that! :-Z
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@vlptr The joke is told in chemistry labs around the world, (at least in Australia) its not about a person its just a play on the words used in instructions.
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@knockdoun generally, a very long cool down period yields better crystals. Depends on what you're crystallizing and what your goals are though, if it's something that crystallizes easily and you don't care about the size, you can cool them quick.
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I liked the crystallization labs in organic chemistry... fun stuff.
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Is rapid temperature change better for crystal formation rather than temperature change over a longer period of time?
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@tarunkakar1 magic
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HOW CAN I FORM CRYSTALS OF POTASSIUM TITANIUM FLUORIDE K2TiF6....CAN ANYBODY HELP..!! IN THIS.
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im 11 and i needc to learn this, its abit advanced but seeing the votes its probably good. is there a simple way to help me? :)
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The concentrated Sodium Acetate solution is a super cooled solution of NaCH3COO. It's getting warm because the freezing point of Sodium Acetate is around 50 deg Celsius. When the crystals form, it jumps to the freezing temperature. The same thing would happen if you super cooled water to say -2 deg C, once you introduced some nucleus for the water molecules to crystallize on, the formation of ice crystals would consequently have the temperature jump up by 2 degrees.
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AAARRGGHH D: How I wish I was able to see this before I actually did the experiment in the lab. :( Well, at least NOW I know how to do it properly. :) Thank you!
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@vlptr well, you're entitled to your opinion.
He makes fun of professors (especially himself) far more often.
The glass rod on the wall is a fun, human story and relevant to topic... Tales from the lab is one of the things that makes our videos different!
I can assure The Professor is someone who cares very deeply for all his students - and I'm serious about that.
periodicvideos 9 months ago 66
@vlptr yes, it was wrong of him to name the student and embarrass them like that...
oh hang on, he didn't name them!
Fair enough though... Your opinion is valid.
I'll make sure I pass your objection along to The Prof... He reads all the comments anyway, so he'll see this and I'm sure you've made him feel a bit bad about it! :(
periodicvideos 9 months ago 27