2 · en
Short, simple sentences with “alloying”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
These findings now indicate that alloying with tin was preceded in the East by alloying with arsenic almost a millennium earlier. Something similar must have happened with other minerals that can be combined with copper.
Arsenical copper declined in favour of alloying copper with tin, possibly because of the poisonous effects of arsenic. It is likely that during smelting, the fumes caused cases of poisoning, so more innocuous compounds were sought. If so, this would be the first case of a "toxic cloud" in ancient times, and the resulting reactions.
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