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Topic: Potassium Dichromate ...  (Read 1943 times)
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minority1039
« on: February 24, 2007 06:55:47 PM »

where can you find it???  I've heard try ceramics places, but the closest thing to a ceramics supply store I know of is Pots and Palettes.

Advice would be loved mucho.
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bradbane
« Reply #1 on: February 28, 2007 02:48:32 PM »

Are you doing photogravure? I've never heard of potassium dichromate being used for anything else.

You have to order it from industrial printing supply houses, and I think they only sell it in bulk (ie. 55 gallon drums). try talking to a college that has a printmaking program, they might be able to point you in the right direction or sell you a little bit. if you find a supply house that carries it ask for "rotogravure" chemistry.
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minority1039
« Reply #2 on: March 01, 2007 03:25:08 PM »

I was planning on using it in this: http://www.goshen.edu/art/DeptPgs/photoemulsion.html context
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bradbane
« Reply #3 on: March 04, 2007 09:23:13 PM »

i think it'll be more trouble tracking down potassium dichromate than it would be to just buy a cheap quart of emulsion. no screen printing emulsions use potassium dichromate anyways, it's a terrible, nasty, toxic, cancer-causing chemical.
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minority1039
« Reply #4 on: March 08, 2007 04:02:09 PM »

huh. well seeing as I'm not too keen on using a horribly awful horrendous chemical I'll stay away from it. thanks.
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« Reply #5 on: October 27, 2008 09:56:57 AM »

please please please note: When using Potassium Dichromate always use gloves and have a steady air flow in the room.
Potassium Dichromate is an acid calcium. The fume can be toxic and it's can lead to dermatitis on hands and forearms (most commonly). We are talking of "a chronic and difficult" to treat dermatitis.
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