Nick,

I used Fisher Scientific Ferric Chloride 40% W/V undiluted.
(12.8-14.7% W/V Fe and 3.9-6.6% W/V HCl)

I didn't measure the temperature, but I used a lab heater under my plastic
tray
at the lowest setting so that it wouldn't melt the tray. It was probably
about 50
deg. C.

Reid Zeigler
Merck Research Labs


> ----------
> From:         Nick P.[SMTP:[email protected]]
> Sent:         Monday, October 19, 1998 6:41 PM
> To:   [email protected]
> Subject:      stainless steele etchant
>
> Hi,
>
> I have a question.
>
> Did anyone ever etch stainless steele? I know Ferric Chloride is supposed
> to work but at what concentration (i.e. FeCl3:H2O = ?) Do we need to add
> anything else (i.e. HCl)?
>
> And where can I buy Ferric Cholride from? Thanks.
>
> Nick
>
>