G’day Lars Dahlberg - you wrote:-
…“I work only in sterling so I tried to figure what you meant
with liver of sulphur”…
The correct or chemical name for “liver of sulfer” is potassium
sulphide. It is a solid which absorbs moisture easily so must be
kept in a tightly closed vessel. It also smells very strongly of
rotten eggs, so you wouldn’t be popular if you used it in the
house. You could ask your local pharmacy shop for it; they
would probably have to order it for you. To use, dissolve a
piece about the size of a pea in about 25 to 50mls of warm
water, put in your carefully cleaned silver and warm it gently.
Leave for a few minutes, then wash thoroughly; the whole item
will have turned black, but a few minutes light polishing will
brighten the high places in your work and leave the black in the
lower spots. The black is a very thin coat of silver sulphide.
If you put the blackened work into pickle the black will dissolve
and disappear. Personally I don’t like it, as with every day use
of silver jewellery the blackening will wear off in about six
months. Hope this helps. Cheers,
/\
/ / John Burgess,
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/ //\ @John_Burgess2
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