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Redue
Operations instruments and practitioners · A Chymical Dictionary
At a Glance
The word. A powder associated with melting calcined metallic matter.
In the book. Compare Regulus, which names a purified metallic part, and Regale, which names a cement for purifying gold.
A place to read. The historical definition below, 1650 dictionary, unnumbered definition page 40; facsimile PDF page 368.
Historical Definition
Redue is a powder by which calcined metals and minerals are melted.
Meaning
The powder is defined through its use with matter that has already undergone calcination. The order matters: the entry starts from a calx or calcined material and describes its subsequent melting. It does not supply the powder’s ingredients.
Use in the Book
Compare Regulus, which names a purified metallic part, and Regale, which names a cement for purifying gold. These terms distinguish an assisting material, a purifying medium and a separated product.
Places to Read
Regale. A cement used in the purification of gold.
Regulus. The purified metallic or mineral portion after separation.
Historical source: 1650 dictionary, unnumbered definition page 40; facsimile PDF page 368 — Facsimile
Sources. A Chymicall Dictionary (1650), s.v. Redue; 1650 facsimile PDF p. 368; compare Regale, Regulus