Fire gilding

Anheuser, K. (1997), The practice and characterization of historic fire gilding techniques, /. Mining, Metals Mater. Soc. (Nov.), 58-62. 

Mercury(I) nitrate is used for preparing calomel and other mercury(T) salts. Other applications are fire gilding and blackening of brass. 

Fire-Gilding. 3594 Match, Quick.2060 Roman Candles, Composition... 

Gold amalgam is used in fire-gilding the metal article to be gilded must of course be able to stand uninjured a temperature... 

Percussion primers used in current center-fire cartridges (See Ref 44, p C74-L) in US and NATO small arms are shown on Fig 31 is taken from TM 9-1305-200(1961), p 25 (Ref 42). Each of these primers consists of a small brass or gilding metal cup that contains a primer compn pellet. Present compns are mostly noncorrosive type, such as consist ing of LSt-LA. The older types contained usually MF, KCIOj Sb2Sj, with or w/o ground glass and a binder. A paper disk (foil), which serves... 

Following are examples of percussion primers used in these items, ih conjunction with igniters and firing devices described here. Essentially each of them (See Fig 58). consists of a copper or gilding metal cup with a flange at one end and a hole at the other end. They are loaded with priming mixtures such as contg Basic Lead Styph-nate, Ba nitrate, Sb trisulfide and Tetracene... 

The objects examined in this study were fabricated from flat sheets of cast and hammered copper partially scooped out to receive the glass frit (cham-pleve process). Firing in air oxidizes the copper surface and fuses and bonds the glass to produce the characteristic enameled surfaces. The objects were gilded over the unenameled copper, as well. These objects are rich in color and in symbolism. 

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