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This section is from the "Henley's Twentieth Century Formulas Recipes Processes" encyclopedia, by Norman W. Henley and others.
See also Luminous Bodies and Paints.
Mix 2 parts of dehydrated sodium carbonate, 0.5 parts of sodium chloride, and 0.2 parts of manganic sulphate with 100 parts of strontium carbonate and 30 parts of sulphur and heat 3 hours to a white heat with exclusion of air.
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