White flux
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Description
An old name for a flux mixture containing 10 parts of sodium carbonate and 13 parts of potassium carbonate. It was used to separate silica from minerals (Schur 1985). Currently, white flux usually refers to a mixture of sodium nitrate / sodium nitrite used for high-temperature welding.
Additional Information
S. Schur, "Conservation Terminology: A Review of Past & Current Nomenclature of Materials", Technology and Conservation, 1985.
Sources Checked for Data in Record
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 336
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985