Cadmium (Cd)

Cadmium metal ingot - one troy ounce - .9999 bullion   Cadmium was discovered in Germany in 1817, separately by two Germans, one a physician (Friedrich Stromeyer) and the other a chemist (K.S.L. Hermann). It makes up only about 0.1 ppm of the Earth's crust and is produced largely as a byproduct from zinc ore. Cadmium has numerous industrial uses, but has been used less prevalently since the 1980s when concerns over its toxicity began to grow. Cadmium has been used as a coating to make iron and steel corrosion resistant; as a stabilizer of plastics; in batteries, nuclear controls rods, semiconductors, and solar panels. Its sulfides and selenides make intense red, orange, and yellow pigments. Inscribed on these ingots are the chemical symbol (Cd), purity (99.99%), weight (one troy ounce), and a serial number (this number is unique and will vary). On the reverse is our logo. These ingots are lightly polished, similar to the one pictured. There can be tiny edge dings, light surface scrat