In article ,
wrote:
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Sal Ammoniac (Aluminum Chloride) is also used as a tinning flux. It is
mildly acidic and is a component of many soldering paste fluxes and
acid core solders. Also not recommended for electrical soldering, but
it is really handy for cleaning soldering tips (in block form)

Ammonium Chloride, actually.


--
Often wrong, never in doubt.

Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org