The industrial production or chemistry of salt and its compounds, especially halogens.
From Greek 'hals' (salt) combined with '-ourgia' (working, from 'ergon' meaning work). This is a technical term created in the 19th century for industrial salt production.
Salt was once so valuable humans went to war over it—'halurgy' represents the industrial revolution's moment when chemistry made salt-production scientific rather than artisanal. It's a tiny word documenting economic transformation.
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