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Ingredients:
2 tbsp. cobalt chloride
2 tsp. white dextrin
3 1/2 tbsp. glycerine
Direction:
Combine all ingredients in small
saucepan. Cook over low heat until well blended, stirring
constantly. Cool completely. Store in tightly covered clean
jar. Ink is pale pink on colored paper. Expose to heat or
light bulb and writing turns blue. Note: Cobalt chloride and
dextrin may be purchased from a chemical supply house and
glycerine from a drug store.
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For
Details about Ingredients , check your nearest American Store
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