In this video, colloidal gold is made by the low voltage electrolysis
of a pure gold anode using ordinary table salt and and clear corn syrup.
The flask contains:
250ml of hot distilled water
75 milligrams of (tri)sodium citrate
50 milligrams of Morton table salt (doesn't matter if iodized or not)
1 drop of corn syrup (invert sugar can also be used).
The longer electrode is simply a piece of 12 gauge copper wire like
used for house wiring.
The shorter electrode is pure gold wire, bunched up at the end to
provide a larger surface area.
The power supply is labeled as 30 volts, but actually produces 36 volts
no load and is rated at 1 amp. Actual current during process is
about 200 milliamps.
Distance between the electrodes is 1 3/4 inches.
At the bottom of the flask is a magnetic stirring bar.
The process works as follows:
The voltage across the electrodes removes the valence electrons from
the gold atoms on the surface of the positive electrode (anode).
Negatively charged chloride ions are attracted to the anode where they
react chemically with the gold ions. This produces gold chloride.
The gold chloride, being water soluble, dissolves into the water and
floats into the solution.
Gold ions in the solution are reduced to metallic gold by the action of
the citratre and corn syrup reducing agents.
Citrate ions are adsorbed onto the surface of the newly created gold
particles acting as a stabilizer which prevents the particles from
agglomerating into larger particles.
The result is colloidal gold with a tiny amount of salt, and citrate,
neither of which are toxic or even foreign to the body.