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stainless steel uses Properties and Uses of Chromium

by:Thumbs-Up     2019-07-29












Chromium is a transition metal that has been found for many industrial uses due to its toughness and heat and corrosion resistance.Widely used in the manufacture of stainless steel.This scientific article provides you with some important features and uses of this transition metal.Chromium belongs to the category of transition metals.It is a hard and brittle steel metal.The number of atoms is 24 Gray.This shiny metal is placed in the sixth group of the periodic table, expressed in the symbol Cr.Chromium was discovered by Louis Nicholas waquilin in a mineral crocoite composed of lead chromium.The name Chrome comes from the Greek word chroma, meaning color.Its name is true, and chromium forms compounds in several strong colors.Today, almost all commercial chromium is extracted from ore chromium or iron chromium oxide.Chromium is the 22 most abundant elements found in the crust, but it never appears as a free metal.Chromium iron ore is mainly extracted from mines.Chromium is widely used for its hardness and corrosion resistance.It is mainly used in metallurgy, chemical industry and refractory industry.It is widely used in the manufacture of stainless steel because it can prevent corrosion and discoloration of steel.Today, it is a very important alloy material for steel.It is also used in the manufacture of nichrome, which is used for resistance heating elements due to its ability to withstand high temperatures.Acid chromium or heavy chromium solution is used for surface coating.This is done with the aid of electroplating technology, in which a thin layer of chromium is deposited on the metal surface.But a thick coating is required to be deposited to provide wear resistance.Another method of surface coating is the chromium conversion coating process through which chromium is used to deposit protective layers such as aluminum (Al), cadmium (Cd) on certain metals) zinc (silver, magnesium (Mg ).Chromium (VI) salts are toxic, which is why they are used to protect the wood from damage and decay caused by fungi, insects and termite.Chromium (III) salt, especially chromium alum or chromium (III) potassium sulfate, is used for tanning of leather as it helps to stabilize the leather.Chromium is also used in the manufacture of pigments or dyes.Chrome Yellow is made of lead chromium acid and has been widely used as a pigment in the past.Its usage dropped significantly due to environmental issues and was finally replaced by leadand chromium-free pigments.Other chromium-Chrome red, Chrome Oxide Green and Chrome Green are a mixture of chrome yellow and Prussian blue.Chromium oxide is used to give Green to glass.The Emerald is green due to Chrome.Chromium oxide is also used in the manufacture of synthetic rubies.Natural rubies are either diamond sand or alumina crystals that reach red due to the presence of chromium.The chromium (III) is mixed into a synthetic diamond crystal to make a synthetic ruby or artificial ruby.Chromium (III) or chromium chloride is required in the human body, but the content is very small.It is believed to play an important role in the metabolism of lipids and sugar.Nowadays, it is used in many dietary supplements that claim to be beneficial to health, however, this is a controversial issue.The biological role of chromium has not been properly verified, and many experts believe that chromium is not important for mammals, while others believe that chromium is a necessary trace element for human beings.The high melting point and heat resistance of chromium and chromium (III) oxides make it an ideal refractory.They are used in blast furnaces, cement kilns and metal casting.Many chromium compounds are also used as catalysts for the treatment of hydrocarbons.Chromium (IV) oxides are used for the production of tapes, for tapes and cassette tapes.Chromium or chromium (VI) is known as toxic and mutant substances, while chromium (IV) is known for its carcinogenic or carcinogenic properties.Some people have also found that chromium salts can cause allergic reactions.Due to this health and environmental problem, some restrictions have been imposed on the use of chromium compounds in many parts of the world.
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