Palladium

Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. Palladium is a rare and lustrous silvery-white metal that was discovered in 1803 by William Hyde Wollaston, who named it after the asteroid Pallas, which was named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas.

Palladium, along with platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs).

Cleaning
100 gms soapwort root (Saponaria Officinalis)
 * Mechanical
 * Chemical

1 lit water

Mix soapwort root and boiling water,after 10 minutes it is ready to use.Fresh solution is pH neutral,few days old solution is slightly acid (pH 5).

According to:

Personal experience


 * Electrochemical
 * Ultrasonic
 * Laser