Enamels and enamelling; an introduction to the preparation and ...

186 INDEX.
Lead antimonate pigment, 53.
colour reactions of, 85.
compounds for enamel, 30-3.
injurious in technical
enamels, 128.
glass group, 7.
in enamel, 11.
low resistance of, 10-1.
preparations, testing, 83.
sulphate, 33.
Leadless cover enamel, 130, 170.
Light, effect of on glass, 12.
Light purple pigment, 59.
Lignite fuel, 90.
Lime, 27.
glass group, 7.
Limestone, 28, 29.
Litharge, 31.
M.
Magnesia, 30.
Magnesium carbonate, 30.
sulphate, 30.
Manganese, colour reactions of, 85.
dioxide as a decolorant, 2,
73, 74.
in cobalt pigments, 68.
pigment, 70, 71, 72.
Materials for enamels, 14-93.
alkalies, 22-7.
fundamental, 14-77.
mixing, 98, 99.
preparing, 94-9.
subsidiary, 87-93.
Mills for enamel materials, 94-7.
Minium as a decolorant, 73.
See Red Lead.
Mixing appliances, 98, 99.
Morion, 15.
Muffle furnaces, 145-50, 179.
N.
Naples yellow, 53.
Nickel in cobalt pigments, 67.
0.
Opacity, means of producing, 7,
15, 35-8, 127-9.
Opal, 15.
Opaque glass group, 8.
Orange pigments, 48, 61-2.
P.
Painting on enamel, 178.
Panstone, 27.
Peat as fuel, 90.
Pickling, 139, 140.
materials, 92.
Pigments, 47-72.
ancient enamel, 2.
antimony oxide, 50-2.black,
49, 72.
blue, 48, 65-70.
brown, 49, 71-2.
chromic oxide, 64, 65.
cobaltous silicate, 65, 66.
zinc phosphate, 67, 68,
cobalt oxide, 65, 67-9, 72.
colour reactions of, 85.
cupric oxide, 63, 64, 72.
cuprous, oxide, 61.
ferric aluminate, 57.
oxide, 55, 72.
ferrous oxide, 62, 63.
gold, 58-61.
green, 48, 62-5.
lead antimonate, 53.
manganese dioxide, 70-2.
potassium antimonite, 52.
purple, 59-61.
red, 48, 57-61.
rose purple, 60, 61.
silver oxide, 54.
smalt, 68, 69.
sodium-gold chloride, 58.
testing, 84.
tin-gold chloride, 59.
violet, 49, 70.
yellow, 48, 49-56.
zaffre, 68, 69.
Pipeclay for fluxes, 44.
PleischePs enamels, 170.
Plumbiferous cover enamels, 130,,
131.
Porcelain in cover enamels, 131,.
133.
sherds for fluxes, 45, 46.
Potash, 24.
sulphate of, 24.