Dear Mike

Couldn't you use a heat gun and a solder sucker to remove the rest of
the indium? The melting point is 156.6 C, lower than tin-lead solders.
Oil baths can go above that temperature if need be (e.g., oil for
chips/fries usually is at 190 C). It will depend on how temperature
sensitive your component is, though.

Chris

On Tuesday, March 30, 2004, at 05:42 PM, Michael Wulf wrote:

> Hi,
>
> I am looking for an acid to remove some indium leftovers from a copper
> flange. The indium was used for a vacuum seal, but removing the last
> pieces mechanically would damage the system. Does anybody know of a
> way to
> chemically remove the indium selective over the copper ? If so what
> would
> be a supplier of that solution ?
>
> thanks
> mike

--
Christopher F. Blanford
Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
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