Cadmium is silvery-white shiny metal with a melting point of 320.9℃, a boiling point of 765℃, and a density of 8,650 kg/m3. Toughness and ductility. Cadmium slowly oxidizes in wet air and loses its metallic luster, creating a brown oxide layer on the surface, if heated above the boiling point. At high temperatures, cadmium reacts strongly with the halogen to form cadmium halide. It can also be combined directly together with sulfur to produce cadmium sulfide. Cadmium is soluble in acid but is insoluble in alkali. The oxide states of cadmium are + 1 and + 2. Cadmium oxide and cadmium hydroxide are both small solubility, soluble in acid but insoluble in alkali.

High-purity and ultra-high purity Cadmium (Cd) materials are crucial components for the research, development, and production of advanced technologies which require optimum properties, performance, and quality.

Cadmium is more toxic, the air and food contaminated by cadmium cause serious harm to the human body, and the metabolism is slow in the human body. Cadmium poisoning occurs in Japan.

Application

Cadmium is crucial a component for the research, development, and production of advanced technologies.

• Cadmiums used for manufacturing alloys: as a group of alloy soil elements, cadmium can be matched into many alloys, such as hard copper alloy containing cadmium 0.5%~1.0%, with high tensile strength and wear resistance. Cadmium (98.65%) Nickel (1.35%) alloys are the bearing material for aircraft engines. Many low-melting alloys contain cadmium and the famous Wood melt contains up to 12.5%.
• Cadmium has a large thermal neutron capture cross-section so alloys containing silver (80%) indium (15%) cadmium (5%) can serve as a (neutron absorption) control bar of the atomic reactor.
• The compounds of cadmium have been widely used in the manufacture of (yellow) pigments, plastic stabilizers, (television image tubes) phosphors, pesticides, fungicides, paints, etc.
• Cadmium is used for plating, etc. Cadmium oxide potential is high, so it can be used as a protective film of iron, steel, and copper, which is widely used for electroplating and corrosion prevention, but due to its large toxicity, this use has a reduction trend.
• Cadmium is used for charging batteries: nickel-cadmium and silver-cadmium and lithium-cadmium batteries have the advantages of small volume and large capacity.
• Cadmium is also used in manufacturing electrical alloys, such as electrical contacts are mostly silver cadmium oxide materials, with the advantages of good conductivity, small combustion arc, good anti-melt welding performance [2], widely used for household switches, automobile relays, etc.

Packing

Cadmium is packed with dacron film, then covered with a sealed plastic film bag or in a polyethylene bottle.