The use of zinc sulphide as an opacifier, with some notes on the results of attempts to produce luminous enamels (1920)
Twells, Robert · leaf 54
y K3CO3 9 8 pts. Sn02 BoraxCryolite 6821 10fo and 15^ of pigment, called(a^ and (b) respectively. Fluorspar 16 Whit ing 14 Flint 44 ZnC03 5 sb2o3 12 Soda Ash 3 The true molecular formula of the feldspar was used as determinedfrom an analysis. The preparation of the cover coat is the same ashas been… … VII DESCRIPTION OF THE TRIAL PIECES Since in no case was luminosity obtained on exposing the enam-els to light, the only description that can be given is that of thesurfaces of the various trial pieces. la. A black field covered with small white spcts that run to-gether at the center of the trial…
Zinc sulfide · Opacity (Optics) · Enamel and enameling · Metal coating · Theses
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