Pyrene (Photo-neat)
Category: Dyes
Pyrene is a simple, four-fused benzene PAH:...
Posted by Molecule of the Day at 10:37 PM • 3 Comments • 0 TrackBacks
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Dyes:
Fluorescein: What makes the Chicago River green?
Category: Dyes
Edit: Looks like I might be off on this. CNN has a clip in the rotation right now about the yearly tradition of dying the Chicago river green for St. Patrick's day. They're saying it's a "secret orange dye." Well,...
Posted by Molecule of the Day at 4:52 PM • 5 Comments • 0 TrackBacks
Indigo (Chemistry: putting plants out of business)
Category: Dyes
Like alizarin, indigo is a dye that we used to have to rely on a plant to make. Now we're able to synthesize it:...
Posted by Molecule of the Day at 10:56 PM • 1 Comments • 0 TrackBacks
Carminic Acid (No, seriously, you're eating bugs)
Category: Dyes
This one always shocks people the first time they hear it. Have you ever seen "carmine" on an ingredients label of some food in the red-purple color family? Yeah, you're eating bugs....
Posted by Molecule of the Day at 10:19 PM • 7 Comments • 0 TrackBacks
Benzophenone (Cold Glow)
Category: Dyes
Benzophenone is something you probably encounter most often in sunscreen:...
Posted by Molecule of the Day at 8:11 PM • 5 Comments • 0 TrackBacks
Tiron (And then, the mighty Tiron bound the iron tightly.)
Category: Dyes
Tiron is a metal ligand and can be used in colorimetric metal assays....
Posted by Molecule of the Day at 7:34 PM • 1 Comments • 0 TrackBacks
p-phenylenediamine (Hazardous Henna)
Category: Dyes
Henna tattoos are a pretty harmless way for hippies to entertain and adorn themselves. A relatively benign dye, Lawsone, stains the skin (or hair) a ruddy brown. Like a semi-temporary tattoo. However, you're limited to pretty much just that color....
Posted by Molecule of the Day at 7:20 PM • 4 Comments • 0 TrackBacks
Silver-Indium-Antimony-Tellurium (AgInSbTe)
Category: Dyes
I just love this. Ever wonder how a rewritable CD works?...
Posted by Molecule of the Day at 9:04 PM • 3 Comments • 0 TrackBacks
Alizarin (Not so mad for madder anymore, are we?)
Category: Dyes
The word chromatography, reveals its origins - in the beginning of the 20th century, Mikhail Tsvet - color compounds. The modern stable of robust, tunable separation techniques (i.e., chromatography) is probably one of the most important things chemistry has given...
Posted by Molecule of the Day at 7:32 PM • 3 Comments • 0 TrackBacks
Fluorescein (Glowing rivers)
Category: Dyes
Edit: Looks like I might be off on this. If you're in Chicago, the river will be green this weekend. For that, you can thank fluorescein:...
Posted by Molecule of the Day at 8:00 AM • 1 Comments • 0 TrackBacks
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