The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals. Some documentation and label information may refer to the legacy brand. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Cobalt(II) chloride catalyzes cross coupling of aryl halides or vinyl halides with aryl grignard reagents in excellent yields. Cobalt chloride is useful for producing invisible ink as it turns blue when heated and becomes invisible once it gets cooled. Cobalt chloride is an indicator for water in desiccants, owing to the reversible hydration/dehydration coupled with distinct color change. In the anhydrous form, it finds use in electroplating of cobalt, in organic chemistry and is a precursor to cobaltocene, (bis(cyclopentadienyl)cobalt(II), which is a good reducing agent. chloride is used in humidity indicator in weather instruments. "ScienceDirect - Journal of Catalysis : Formation of Filamentous Carbon from Iron, Cobalt and Chromium Catalyzed Decomposition of Acetylene." ScienceDirect - Home. 265 (5179): 1682 - Science." Science/AAAS | Scientific Research, News and Career Information. "Magnetism from the Atom to the Bulk in Iron, Cobalt, and Nickel Clusters - Billas Et Al.300 (5622): 1130 - Science." Science/AAAS | Scientific Research, News and Career Information.
New Jersey: Pearson Education, Inc., 2007. General Chemistry: Principles & Modern Applications, 9th Edition. Through the process of cementation a extremely hard, strong alloy such as those used in drilling tools is produced. Cementation is the process where one metal is used to cover the coating of a second metal. Cobalt can also be used for the production of cemented carbides. An example of this is electric motors and generators. Cobalt(II) hydroxide 9295 Decmpos Blue-green or rose-red Very slightly soluble in water (0. Cobalt magnetic alloys are used in devices that need to hold a magnetic field. Cobalt(II) chloride 129.84 724 (in HCI gas) Pale-blue, hygroscopic Soluble in water (450 gtl at rc 1050 gtl at. Cobalt is also used to make magnetic alloys.
Superalloys are used in gas turbines because is it is used to make electricity, which operates at a really high temperature. Superalloys are used where metals are placed under a great deal of stress and high temperatures.Super alloys are commonly used in airplane parts such as jet engine components and gas turbines. Super alloys do not rust and retain their physical and chemical properties at high temperatures. Super alloys consist of iron, cobalt, nickel, chromium, tungsten, aluminum, and titanium. Co-56Ĭobalt's most important application is the production of super alloys. Cobalt-60 is also used to treat cancer, because the radiation it gives off kills cancer cells. Co-57,58 are also used for the same purpose. Cobalt-60 is one of the most commonly used radioactive isotopes and is used in medicine to find a treat certain diseases including the Schilling test which determines if a patients body is making and using vitamin B 12 effectively. A radioactive isotope which splits apart and emits radiation. There are also 10 radioactive isotopes of cobalt that are currently known. The mass number is the number of protons and neutrons contained in the nucleus of the atom.The number of neutrons in a atom is how elements vary, this variation is called an isotope. The number written on the right of an element i.e 59 is the mass number. Isotopes are different because of their mass number. Isotopes are two or more forms a element. Table 1: Properties of Cobalt Atomic NumberĬobalt has one naturally occurring isotope which is cobalt 59. The density is 8.9 grams per cubic centimeter. Cobalt's melting point is 1495 degrees C with a boiling point of 2870 degrees C. When cobalt is combined with another metal to make an alloy its magnetic properties are even more apparent than the individual metal of cobalt. Next to nickel and iron, cobalt is one of the three naturally occurring magnetic metals. Malleable means is the ability of being hammered into thin sheets. Ductile means the metals ability to be drawn into thin wires. Although cobalt is ductile it is also somewhat malleable. \)Ĭobalt is a sturdy, gray metal which resembles iron and nickel.
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