Capacitor Bank #79 - Carbon Foam From Chemistry Experiment @BillGilmour519

Uploaded July 2014 | Updated September 2026, 1 week ago

There was some carbon foam left from a chemistry experiment and it looked like it would be good for a capacitor bank test. The carbon foam got a few shots of 6400 V from the 70 uF capacitor bank. Slow motion recorded at 240 and 480 frames/sec.

Capacitor Bank #79 - Carbon Foam From Chemistry Experiment

$How To Make Sodium Silicate (Water Glass) It is fairly easy to make sodium silicate and I use it for refractory purposes. It is expensive locally so I began to make my own. In this video I use silica gel cat litter and liquid lye sold locally as BBQ cleaner. You can use lye crystals (sodium hydroxide) and silica gel from the dry packets that come with electronics. The usual mix is 200 gm lye and 300 gm silica gel with maybe 100 ml water. Note that mixing lye crystals into water liberates great heat. Add lye slowly with stirring when making a lye solution. Use gloves, eye protection, and good ventilation.$

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