Chem Bit - Disappearing Ink
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No blue ink there when exposed to the air!
In the blink of an eye this ink bids goodbye! Explore the magic of chemical reactions with this disappearing ink party trick. Once exposed to the air, the blue indicator turns colourless as it reacts with carbon dioxide. You can then make it reappear.
Age: 8+ with adult supervision
What You Get
Chem Bit - Disappearing Ink. 1 oz ( 30mL) Thymolphthalein solution and instructions.
- Acid/base reactions and indicator
WARNING: CHOKING HAZARD Small Parts. Not for children under 3 years.
|Age Group||5-6 Years, 7-8 Years, 9-10 Years, 11-12 Years, 12+ Years|