Difference between revisions of "Glassmaker's soap"
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== Description == | == Description == | ||
| − | A common name for [ | + | A common name for [[pyrolusite]], a [[manganese dioxide]] ore, used as a decolorizer in the manufacture of glass. Manganese dioxide has been used as a glass declolorizers since about the 2nd century BCE. Small amounts, 0.5 - 1.0%, were often used in Roman glass. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Revision as of 08:28, 16 January 2014
Description
A common name for Pyrolusite, a Manganese dioxide ore, used as a decolorizer in the manufacture of glass. Manganese dioxide has been used as a glass declolorizers since about the 2nd century BCE. Small amounts, 0.5 - 1.0%, were often used in Roman glass.
Synonyms and Related Terms
manganese dioxide; pyrolusite
Authority
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 494
- Thomas B. Brill, Light Its Interaction with Art and Antiquities, Plenum Press, New York City, 1980
- External source or communication Comment: CoOL DISTLIST entry by Stephen Koob 18 Sep 2002