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DEF/TAR 01

 
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Sumguy01



Joined: 28 Jan 2013
Posts: 1101
Location: Ketchikan Alaska USA

PostPosted: Sat Feb 03, 2018 5:57 pm    Post subject: DEF/TAR 01 Reply with quote

DEF (diesel exhaust fluid) and Tartaric acid.
Evaporating on a slide with no cover glass.
This set is from day #2.
obj. = 10x and 20x
Polarize with retarder plates.
Zerene stack.
A set from day #3 will follow.







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Smokedaddy



Joined: 07 Oct 2006
Posts: 1108
Location: Phoenix, Arizona

PostPosted: Sat Feb 03, 2018 7:21 pm    Post subject: Reply with quote

Very interesting.
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Jacek



Joined: 02 Oct 2011
Posts: 4999
Location: Poland

PostPosted: Sun Feb 04, 2018 3:28 am    Post subject: Reply with quote

Very nice Very Happy
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Olympusman



Joined: 15 Jan 2012
Posts: 3705

PostPosted: Sun Feb 04, 2018 10:51 am    Post subject: Polrization Reply with quote

Nice series.

Mike
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Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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vasselle



Joined: 05 Jan 2014
Posts: 1460
Location: France

PostPosted: Sun Feb 04, 2018 2:39 pm    Post subject: Reply with quote

very nice
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Microscope Leitz Laborlux K
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Sumguy01



Joined: 28 Jan 2013
Posts: 1101
Location: Ketchikan Alaska USA

PostPosted: Tue Feb 06, 2018 9:32 pm    Post subject: Reply with quote

Thanks for the comments .
Here are two more

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leonardturner



Joined: 14 Mar 2013
Posts: 409
Location: Atlanta, GA, USA

PostPosted: Wed Feb 07, 2018 5:16 am    Post subject: Reply with quote

Beautifully presented, but how on earth did you think to even try this?
#6 and #7 look like automotive logo designs; I could imagine one on the hood of something fast--

Leonard
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Sumguy01



Joined: 28 Jan 2013
Posts: 1101
Location: Ketchikan Alaska USA

PostPosted: Wed Feb 07, 2018 9:51 pm    Post subject: Reply with quote

( how on earth did you think to even try this? )
We use DEF at work and I noticed that where ever it was spilled and dried it left a crystalized residue.
So I checked it out with the microscope using X polarized lighting.
It looks really good on its own.
So now am trying different things mixed into it and have been getting some really nice results.
Very Happy
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leonardturner



Joined: 14 Mar 2013
Posts: 409
Location: Atlanta, GA, USA

PostPosted: Thu Feb 08, 2018 4:24 am    Post subject: Reply with quote

Thanks for the info--good find!

Leonard
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billben74



Joined: 09 Apr 2016
Posts: 145
Location: Cambridge, UK

PostPosted: Thu Feb 08, 2018 2:38 pm    Post subject: Reply with quote

Nice crystals. Some look like spaceships to me.
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Mike



Joined: 04 Aug 2006
Posts: 86
Location: Northeast Ohio

PostPosted: Sun Feb 11, 2018 7:41 am    Post subject: Reply with quote

Hello,

After my earlier mistake of assuming DEF was the condensed moisture one sometimes gets on startups, and learning it is an additive injected into the exhaust system to reduce NO2 emissions, I looked at the makes up and see it is aqueous urea solution made with 32.5% urea and 67.5% deionized water.

At any rate - wonderful shots and very interesting.

All the best,
Mike
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