Definitions

from The Century Dictionary and Cyclopedia

  • n. Metallic zinc in the condition of a fine powder, produced by grinding in an iron mortar heated to 200–250° C., and obtained to a considerable extent by the rapid cooling of zinc vapor in the reduction of the metal from its ores. In the latter case there is mixed with the powder more or less zinc oxid. Zinc-dust is much used as a deoxidizing agent in the operations of dyeing and calico-printing, sometimes also as a protective paint for ironwork. Also called zinc-powder.

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