Etchant Solution (Powder) Web Source

KatyBri

Hello,

Does anyone know of a good .com source (ad good price) for dry ferric chloride powder (to be diluted with water to make PCB etchant solution)?

Thanks

RDL2004

Most places sell it already in solution, but I know All Electronics and Ocean State Electronics have the dry form (branded Datak).

If you are in the US, I would just recommend trying a local Radio Shack, they sell the solution in pint bottles for about $5 which is a reasonable price and very convenient if you're not doing a lot of boards.

You might try chemical supply places and also look into ammonium persulphate.

www.allelectronics.com/cgi-bin/item/ER-3/445/DRY_CONCENTRATED_ETCHANT_.html

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- Rick

KatyBri

I'm not familiar with ammonium persulphate. What's the story with it?

RDL2004

Its just another common etchant. It's more likely to be found online as a dry chemical instead of in solution because once dissolved it doesn't have as good a shelf life as ferric chloride.

www.mgchemicals.com/products/410.html

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- Rick

pwillard

I know I'm dredging up an old discussion by mentioning this... but I home brew my own etchant from common materials. I get Hyrdogen Peroxide solution from the local pharmacy and a jug of Muriatic Acid from the local Home Supply like Lowes or Home Depot but you can also get it from a swimming pool supply store.

See http://www.fullnet.com/~tomg/gooteepc.htm for more info.

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There's nothing like a new idea and a warm soldering iron.

Blackbird455

http://forums.parallax.com/forums/default.aspx?f=15&m=208075 A true gem of a thread.............. Read my last post, shows how very economical and readily available this stuff is !!!!

Not to mention all of the other good info in this thread.

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Noli nothis permittere te terere