Cadmium Metal | Properties | Uses | and Facts - Elements and Compounds


Monday, May 1, 2023

Cadmium Metal | Properties | Uses | and Facts

Properties Uses and Facts about Cadmium Metal

    What is Cadmium

    Cadmium metal is classified as a transition metal, and chemically it is an element. Cadmium has a density of 8.65 grams per cubic centimeter. Cadmium has an atomic mass of 112.414 AMU, atomic number 48 and its symbol (Cd). In the Periodic Table, Cadmium is located in Group 12, Period 5 and Block (D). Its atom has 48 electrons, 48 protons, 64 neutrons and 5 energy levels. Cadmium metal is found in the solid state at room temperature. Its melting point is 321.07 °C (609.93 °F) and its boiling point is 765 °C (1409 °F).

    Cadmium metal was discovered by German chemist Friedrich Strohmeyer in 1817.
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    Cadmium Metal Properties Uses and Facts

    Properties of Cadmium Metal

    • Cadmium is a silver colored metal with a blue tinge.
    • Cadmium is a soft metal, it is so soft that it can be easily cut with an ordinary knife.
    • Cadmium metal is soluble in acids, but not in alkalis.
    • Cadmium is a toxic metal.
    • Cadmium has the property of absorbing neutrons.
    • Cadmium reacts slowly with oxygen in the air to form cadmium oxide.
    • When bent, cadmium metal gives a crackling sound like tin metal.
    • Cadmium vapor is dark yellow in color and monatomic.
    • Cadmium is a good conductor of electricity and heat.

    Uses of Cadmium Metal

    • Cadmium is most commonly used in the production of nickel-cadmium batteries.
    • Cadmium is used to coat steel with a protective layer by electroplating to prevent it from rusting. Especially 0.05 mm thick layer of cadmium is plated for protection of vital parts of sea vessels, oil platforms located at sea, and aircrafts. Due to which they get complete protection from the marine environment, but in view of the damage caused to the environment, its use is being reduced.
    • Cadmium is known to absorb neutrons, so it is used to make control rods for nuclear reactors.
    • Cadmium alloys are used to make low friction bearings.
    • Cadmium and silver are combined to make solder, which is used in electrical parts.
    • Cadmium sulphide is used as a yellow pigment.
    • In the past, cadmium was used in the cathode ray tubes of color televisions.
    • Cadmium is used as a stabilizer for plastics.

    Interesting facts about Cadmium

    • Cadmium is the 66th most abundant element in the Earth's crust.
    • Most cadmium metal is obtained as a by-product during the production of zinc metal.
    • Earthworms are very sensitive to cadmium toxicity, dying even when very small amounts of toxic cadmium are present in the soil.
    • We consume 0.05 mg of cadmium daily through food.
    • The most important mineral of cadmium is greenocite, also known as cadmium sulphide.
    • Cadmium in powder form is inflammable, and toxic gases are released when it burns.
    • In view of the toxicity of cadmium, the European Union has banned its use in electronic equipment.

    Detailed Information on Some other Metals

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