Osmium has a blue-gray tint and is the densest stable element; it is approximately twice as dense as lead and slightly denser than iridium. Atomic Number The following article provides information about its density, melting point, and other properties.
Osmium finds its use in a variety of alloys in the industry. This category only includes cookies that ensures basic functionalities and security features of the website. It is also used as a catalyst in the chemical industry. It has the highest melting point and the lowest vapor pressure of the platinum group. Toxic by inhalation and a strong irritant to the eyes and mucous membranes. It should also be noted that it is highly toxic. Atomic Mass Osmium's melting point is over 5,400 degrees Fahrenheit and its boiling point is over 9,000!
We'll assume you're ok with this, but you can opt-out if you wish. Osmium tetroxide is a highly toxic powerful oxidizing agent with a strong odor. Links, Show Table With: These cookies do not store any personal information. Osmium tetroxide appears as a colorless or yellow solid with a pungent odor of chlorine.Begins to sublime below melting point. The metal is very difficult to fabricate, but the powdered or spongy metal slowly gives off osmium tetroxide, which as a powerful oxidizing agent and has a strong smell. It is very hard and remains brittle even at high temperatures.
Osmium is a metallic chemical element with the atomic number 76, and electronic configuration, [Xe]4f145d66s2. Noble Gases agreement. We also use third-party cookies that help us analyze and understand how you use this website. Non-Metals In the periodic table, elements starting from cerium (atomic number 58) to lutetium (atomic number 71) are known as lanthanides. Atomic radii of platinum group members are almost the same as those of the fifth group elements, but their atomic masses are almost twice as that of the fifth group elements. Metalloids
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Soluble in alcohol. Properties: Osmium has a melting point of 3045 +/- 30 °C, boiling point of 5027 +/- 100°C, specific gravity of 22.57, with a valence usually +3, +4, +6, or +8, but sometimes 0, +1, +2, +5, +7. Halogens
One of the most interesting facts is that, as per various studies and research, its density is the highest amongst various natural elements known to mankind, and it is close only to iridium. It is one of the rarest elements on Earth. Being a part of the precious platinum group members (PGMs), it has some unique features. The melting point of a substance is the temperature at which this phase change occurs. The melting point of osmium is 3045°C, which is the highest amongst the platinum group members, and fourth highest amongst all the elements. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. 6789 Quail Hill Pkwy, Suite 211 Irvine CA 92603. Get in touch with us and we'll talk... Amongst the various features of this element, its density and melting point are most noteworthy. The 10 densest metals have been presented below in a tabular form.
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The metal is lustrous, bluish white, extremely hard, and brittle even at high temperatures. Osmium wires were used for filaments of early incandescent lamps before the introduction of tungsten. It was discovered in 1803, by an English chemist, Smithson Tennant, who found this chemical element in the residue of crude platinum dissolved in aqua regia mixture. Crystal Structure, Element Groups:
Name: Osmium Symbol: Os Atomic Number: 76 Atomic Mass: 190.23 amu Melting Point: 3045.0 °C (3318.15 K, 5513.0 °F) Boiling Point: 5027.0 °C (5300.15 K, 9080.6 °F) Number of Protons/Electrons: 76 Number of Neutrons: 114 Classification: Transition Metal Crystal Structure: Hexagonal Density @ 293 K: 22.4 g/cm 3 Color: silvery Atomic Structure A gray-white metal, osmium is very hard, brittle, and difficult to work, even at high temperatures. Boiling Point Necessary cookies are absolutely essential for the website to function properly. Alkaline Earth Metals Name Hence, owing to lanthanide contraction, its density is very high. Melting Point of Chemical Elements.
Melting Point. This page was created by Yinon Bentor. Presented below is tabulated data about the chemical elements with the highest melting points. Osmium is a rare metal that belongs to the platinum group members. The melting point also defines a condition in which the solid and liquid can exist in equilibrium. The melting point of osmium is 3045°C, which is the highest amongst the platinum group members, and fourth highest amongst all the elements. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies.