Avoca Silver Nitrate Caustic Pencils are designed for multiple use for a single patient. An Avoca Pencil contains approximately 350mg of silver nitrate & potassium nitrate mixture.This is about 10 times more silver nitrate than an applicator. This red carton and red plastic holder signals a 40% silver nitrate mixture. From the date of manufacture, all Avoca Pencils have a 5-year shelf life.
Usage:
Place a single drop of water, or more if required, on a clean non-absorbent surface such as an upturned drinking glass or stainless steel container. Gently stir the tip of a pencil in the drop of water for about 20 to 30 seconds. Silver nitrate from the tip is quickly dissolved in the water.
Ingredients:
Each cutaneous stick contains 40% w/w silver nitrate as the active ingredient . Also contains potassium nitrate 60% w/w.
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