MicrobeHunter.com Microscopy Forum

Posted: **Wed Mar 13, 2019 10:34 pm**

Ascorbic Acid in water, grown in vacuum chamber.
10x pol

Enjoy,
Radazz

Posted: **Wed Mar 13, 2019 10:38 pm**

nice job

Posted: **Wed Mar 13, 2019 11:24 pm**

Great image...

BillT

Posted: **Thu Mar 14, 2019 1:57 am**

Thank you gentlemen.
I wasn’t sure it would make a difference, but it seems to have impacted the evaporation pattern.
Radazz

Posted: **Thu Mar 14, 2019 10:26 pm**

Radazz wrote:Thank you gentlemen.
I wasn’t sure it would make a difference, but it seems to have impacted the evaporation pattern.
Radazz

I have considered a DIY vacuum chamber chamber for a few experiments. A couple of questions please.
Were you using a commercial vacuum chamber?
What was the vacuum measurement and did it vary?
I presume the vacuum was held until sample was completely dry.

Thanks,
jim

Posted: **Sun Mar 17, 2019 9:56 pm**

Jim,
Commercial two quart vacuum chamber and pump by BAC
-30 Hg. Stayed steady

Dried completely in vacuum
Took much longer than I was expecting.

Radazz

Posted: **Mon Mar 18, 2019 12:59 am**

Thanks for the reply Radazz. I've wondered about the use and possible effect of vacuum in crystallography. Yes, it can take a fairly long time for the solutions or colloidal dispersions to dry even in normal atmosphere. I find the nicer crystals more often with slower growth but do use a slide warmer quite frequently with good results. I'm not always so patient an individual.

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