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化學(xué)配方數(shù)據(jù)庫(kù)
配方類(lèi)型: INKS AND MARKING COMPOUNDS
配方說(shuō)明: Permanent Porcelain Marking Ink
配方組成: Glycerin/5 or 6 drops
Litharge/2 g.
Potassium Carbonate/1 g.
Cobalt Nitrate Crystals/2 g.
Borax/1 g.
配制方法: Dry the cobalt nitrate at 100C. for 1 hour. Grind together the first four ingredients. Add the glycerin dropwise until the ink is of a suitable consistency to flow from a pen.
Using this ink, the desired markings are written lightly on the ceramic ware, which is then heated to redness for a minute or two over an oxidizing flame. On cooling, this gives a clear, permanent blue mark on the porcelain surface.

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