Rose's metal, also known as “Rose metal” and “Rose's alloy” is a fusible alloy with a low melting point. Rose's metal consists of 50% Bi (bismuth), 25–28% Pb (lead) and 22–25% Sn (tin); its melting point is 100 °C (212 °F). Rose's metal is typically used as a solder. Its special property is that it does not contract on cool. It was used to secure cast iron railings and balusters in pockets in stone bases and steps.
History
Discovered by the German chemist Valentin Rose the Elder, the grandfather of Heinrich Rose.
See also
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This page was last modified on 16 February 2010 at 03:29.
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