Uploaded July 2014 | Updated September 2026, 1 week ago
I showed this acid in a previous video, and today I tried cleaning it up. The acid was warmed and 30% hydrogen peroxide was added drop-wise with a glass rod used for stirring. With peroxide added, the acid slowly clears. Because the peroxide is 70% water, the acid is now diluted and must be concentrated. It gets heated to 625 degrees Fahrenheit to drive off the water. The concentrated acid is then tested on some sugar in a beaker. This batch went a dark red during the heating because I did not use enough peroxide when I cleared it. So, I also show a batch from yesterday that came out a yellow color.
CAUTION : Hot acid is extremely dangerous.
The fumes generated must be ventilated or do this
outside if no ventilation system is available.
I showed this acid in a previous video, and today I tried cleaning it up. The acid was warmed and 30% hydrogen peroxide was added drop-wise with a glass rod used for stirring. With peroxide added, the acid slowly clears. Because the peroxide is 70% water, the acid is now diluted and must be concentrated. It gets heated to 625 degrees Fahrenheit to drive off the water. The concentrated acid is then tested on some sugar in a beaker. This batch went a dark red during the heating because I did not use enough peroxide when I cleared it. So, I also show a batch from yesterday that came out a yellow color.
CAUTION : Hot acid is extremely dangerous.
The fumes generated must be ventilated or do this
outside if no ventilation system is available.
