Thread: How do you dispose of exhausted etch liquid?
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Old 2007-11-19, 6:39pm
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Judi_B Judi_B is offline
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Do NOT dump baking soda in the jar! You would get volcano type action and spattering. How much do you need to dispose of? I can probably come up with a safe way to neutralize it. Etch All Dip-n-Etch is a 20% solution of ammonium bifluoride.
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