What is Os? Important knowledge about Os.

  1. Definition of Os
    Os – or Osmium – is a chemical element belonging to the group of transition elements, group 8, period 6 in the periodic table. The atomic mass of Os is 190.2, with a molecular structure consisting of 76 electrons, 76 protons, and 114 neutrons. The ion structure of Osmium is usually Os2+ or Os3+.

  2. Properties of Os
    2.1 Physical properties of Os
    Os is a metal, hence it is in solid state under standard conditions. The color of Os is bluish-black. With a neutral PH, Os does not generate a specific smell.
    2.2 Chemical properties of Os
    Os is very resilient to corrosion and can withstand high temperatures, it does not dissolve in acid and only dissolves in a mixture of nitric acid and hydrochloric acid.

  3. Common chemical equations of Os
    The reaction of Os with acid is very limited. Some examples of Os reactions with acid include:

    • Os3 + 12HNO3 -> 3Os(NO3)4 + 6H2O
    • 2 Os + 8HNO3 -> 2Os(NO3)4 + 2NO + 4H2O
      For metals, non-metals, and salts, Os typically does not react.

  4. Synthesis of Os
    4.1 Laboratory preparation of Os
    Preparing Os in the laboratory is quite difficult due to its high resilience. Generally, Os is extracted from ores containing Os and Platinum.
    4.2 Industrial preparation of Os
    In industry, Os is obtained from ores containing Os and Platinum through processing and purification procedures.

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