Daily Archives: September 1, 2016


Some types of stump remover are nearly pure potassium nitrate.
Get Potassium Nitrate from a Store A lot of readers have asked me where they can find potassium nitrate or saltpeter, which is a common ingredient in many pyrotechnic recipes and other home science projects.┬áThe answer: stump remover. Spectracide’s Stump Remover is potassium nitrate. In the United States it can […]

Where to Get Potassium Nitrate (Saltpeter)


The dancing charcoal chemistry demonstration is extremely exothermic, so your test tube might break. Use caution!. Neil Tackaberry, Flickr
Chemistry demonstrations involving fire, color change, and sound leave a lasting impression on students. The “dancing charcoal” demonstration is sure to be a hit! Oxidation of Charcoal by Potassium Nitrate Drop a small piece of charcoal into a test tube of melted potassium nitrate and watch the charcoal dance as […]

Dancing Charcoal Chemistry Demonstration