How to make UV invisible ink at home? - uv ink
How do you make invisible ink, the UV light (black light) required to read at home? What chemicals are used, you can buy?
Saturday, January 9, 2010
Uv Ink How To Make UV Invisible Ink At Home?
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Detergent is a fluorescent dye in it, try it. Another interesting invisible ink is acid-base indicators phenolphthalein and then the message with Windex with ammonia spray and turns pink.
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