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

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A.<br />

Acid pickle for enamel ware, 92.<br />

Adherence of enamel, improving,<br />

129.<br />

Alkalies, 22-7.<br />

action of, on glass, 10.<br />

testing, 81.<br />

Alkaline earths for enamels, 27.<br />

Alumina, colour reactions of, 85.<br />

Amethyst, 15.<br />

Ammonium carbonate, use of, in<br />

<strong>enamelling</strong>, 93, 129.<br />

Ancient enamels, pigments in, 2.<br />

Annealing, 147, 152, 161.<br />

necessity for, 11.<br />

Anthracite fuel, 91.<br />

Antimony, colour reactions of, 85.<br />

oxide pigment, 50-2.<br />

Applying cover enamel, 151-3, 162,<br />

169.<br />

ground enamel, 142-4, 162,<br />

169.<br />

Argillaceous limes<strong>to</strong>ne, 29.<br />

Artistic enamels, 174-82.<br />

Barium carbonate. See Wi<strong>the</strong>rite.<br />

compounds for enamels, 34.<br />

sulphate. See Barytes.<br />

Baryta glass, properties of, 34.<br />

Barytes, 34.<br />

Black pigments, 49, 72.<br />

" Blind" glass, 9.<br />

Blowpipe flame, effect on enamel<br />

colours, 182.<br />

tests, 78-86.<br />

Blue enamel, 178.<br />

INDEX.<br />

pigments, 48, 65-70.<br />

Boiler tubes, enamel for, 168.<br />

Bone ash, 38,<br />

Borax for fluxes, 39-42.<br />

Boric acid, 40-2.<br />

glass, properties of, 41.<br />

use of, 6. . i<br />

Bottcher's enamel for copper, 171.<br />

Brown pigments, 49, 71-2.<br />

C.<br />

Calcining quartz, 21.<br />

Calcium carbonate. &?

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