1 March 2019 Bulletin

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Tungsten, also known as wolfram, is a chemical element with symbol
W and atomic number 74. [1] Based on its purity, the colour of tungsten
may range from white for the pure metal to steel-grey for the metal with
impurities. It is commercially available in a powdered or solid form. The
melting point of tungsten is the highest among metals and it resists
corrosion. It is a good conductor of electricity and acts as a catalyst in
chemical reactions. Tungsten in the form of finely divided powder is highly
flammable and may ignite spontaneously on contact with air. Powdered
tungsten may also cause fire or explosion on contact with oxidants. [2]

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