Martial artists will agree: That's an arm bar.
Effective control technique. Can dislocate joint. Or can cause much pain, producing instant compliance.
It is not necessary to put any dissolved salts at all when making colloidal silver.
We have used both processes. The one we currently use starts with distilled water and 99.99% pure silver electrodes – NO additives. 3.5 hours. Water agitated with a magnetic lab stirrer. Result 20 ppm.
Have made some 300-400 quarts over the past 20 years and can testify that what we make is effective.