Physical properties of Cobalt include melting point, boiling point, mechanical strength Distributieweg 3 2645 EG Delfgauw The Netherlands Phone: +31 152 610 900 fax: +31 152 616 289 e-mail: info@lenntech.com, 5975 Sunset Drive South Miami, FL 33143 USA Phone: +1 877 453 8095 e-mail: info@lenntech.com, Level 5 - OFFICE #8-One JLT Tower Jumeirah Lake Towers Dubai - U.A.E. Many of the properties of the alloys arise from the crystallographic nature of cobalt (in particular its response to stress), the solid-solution-strengthening effects of chromium, tungsten, and molybdenum, the formation of metal carbides, and the corrosion resistance imparted by chromium. Physical Properties. When plants grow on contaminated soils they will accumulate very small particles of cobalt, especially in the parts of the plant we eat, such as fruits and seeds. The main ores of cobalt are cobaltite, erythrite, glaucodot, and skutterudite. Generally the softer and tougher compositions are used for high-tem… Cobalt will accumulate in plants and in the bodies of animals that eat these plants, but cobalt is not known to bio magnify up the food chain. Its alloys also possess useful properties and so it finds use in high speed steels and cutting tools for instance. Furthermore, the metal possess high melting and boiling points. Cobalt is stable in air and unaffected by water, but is slowly attacked by dilute acids. Cathodes made with cobalt won't overheat easily or catch fire, which is a major safety issue, and they'll also be able to store and transfer more energy. Cobalt - Properties - Price - Applications - Production. Density: 8.86 grams per cubic centimeter 5. It is similar to iron and nickel in its physical properties. These patients also suffer from hair loss, diarrhea and vomiting. Cobalt is usually not mined alone, and tends to be produced as a by-product of nickel and copper mining activities. It is stable in air and does not react with water. It is used in order to preserve the food and protect the consumer. Cobalt is generally produced as a by-product of nickel and copper mining. The transformation is sluggish and accounts in part for the wide variation in reported data on physical properties of cobalt. Cobalt produces many vibrant colours, is wear resistant, oxidation resistant, ferromagnetic and conducts electricity. Cobalt is used in many alloys (superalloys for parts in gas turbine aircrafr engines, corrosion resistant alloys, high-speed steels, cemented carbides), in magents and magnetic recording media, as catalysts for the petroleum and chemical industries, as drying agents for paints and inks. Cobalt is beneficial for humans because it is a part of vitamin B12, which is essential for human health. Services include investment sales, brokerage, and commercial leasing. These are alloys that retain mechanical strength at high temperatures. Cobalt is not found as a free metal and is generally found in the form of ores. Copper can be used to draw away negative energy. Cobalt is an element that occurs naturally in the environment in air, water, soil, rocks, plants and animals. These properties arise from the crystallographic nature of cobalt, the solid-solution-strengthening effects of Cr, W, and Mo, the formation of metal carbides, and … It has a metallic permeability of about two thirds that of iron. The element is active chemically, forming many compounds. Its properties and price determine its applications. All the solutions were prepared using Milli-Q water (pH 7.2). Cobalt. Melting point: 2,723 degrees Fahrenheit (1,495 degrees Celsius) 7. Phase at room temperature: Solid 6. The element is active chemically, forming many compounds. In general, there are two classes of magnetic substances, hard magnets and soft magnets. The radioactive isotopes of cobalt are not present in the environment naturally, but they are released through nuclear power plant operations and nuclear accidents. Cobalt is not often freely available in the environment, but when cobalt particles are not bound to soil or sediment particles the uptake by plants and animals is higher and accumulation in plants and animals may occur. Wind turbines, hard disk drives, motors, sensors, actuators, magnetic resonance imaging etc. When animals graze on these grounds they suffer from lack of cobalt, which is essential for them. Cobalt is a sturdy, gray metal which resembles iron and nickel. Cobalt, metallic chemical element, one of the transition elements, atomic number 27. It may react with other particles or adsorb on soil particles or water sediments. On the other hand, soils near mining and melting facilities may contain very high amounts of cobalt, so that the uptake by animals through eating plants can cause health effects. Humans add cobalt by releasing small amounts into the atmosphere from coal combustion and mining, processing of cobalt-containing ores and the production and use of cobalt chemicals. It is a member of group VIII of the periodic table. Cobalt is a hard, brittle metal. Like other metals, it can also be magnetized. Properties . Skin contact with soil or water that contains cobalt may also enhance exposure. Cobalt tends to exist as a mixture of two allotropes over a wide temperature range. Atomic weight (average mass of the atom): 58.933195 4. It imparts hardness to steels and alloys. Abstract. Influence of stabilizing agents on structural and optical properties of cobalt oxide nanoparticles synthesized by an ultrasound-assisted method. The metal melts at 1495 °C and boils at 2927 °C. Cobalt has been classified to be carcinogenic to experimental animals by the Federal Republic of Germany. Cobalt is of relatively low abundance in the Earth's crust and in natural waters, from which it is precipitated as the highly insoluble cobalt sulfine CoS. It is also found in Finland, Azerbaijan, and Kazakhstan. Cobalt (II) nitrate hexahydrate (Co (NO3) 2.6H 2 O), 1,3,5-tricarboxylic acid (H 3 BTC), N,N-diethylformamide ((CH 3) 2NCH), Ethyl alcohol, Potassium Hydroxide (KOH) were purchased from Sigma-Aldrich. Cobalt blue is an important part of artists' palette and is used bu craft workers in porcelain, pottery, stained glass, tiles and enamel jewellery. Cobalt cannot be destroyed once it has entered the environment. Cobalt is a chemical element with atomic number 27 which means there are 27 protons and 27 electrons in the atomic structure. Cobalt is also used in superalloys, glass to metal seals, electroplating and cutting tools. Properties Of Cobalt It is a hard ferromagnetic, silver-white, lustrous, brittle element. Cobalt is 27 elements in the Periodic Table. Cobalt is a is transition metal. As a group, the cobalt-base alloys may be generally described as wear resistant, corrosion resistant, and heat resistant (strong even at high temperatures). Of the three common ferromagnetic metals (iron, nickel, and cobalt), cobalt has the highest Curie point (that is, the temperature above which its magnetic properties are weakened). Cobalt is a ferromagnetic (strongest magnet), up to 11210C. As cobalt is widely dispersed in the environment humans may be exposed to it by breathing air, drinking water and eating food that contains cobalt. The total daily intake of cobalt is variable and may be as much as 1 mg, but almost all will pass through the body unadsorbed, except that in vitamine B12. Although the average level of cobalt in soils is 8 ppm, there are soils with as little as 0.1 ppm and others with as much as 70 ppm. Cobalt will only mobilize under acidic conditions, but ultimately most cobalt will end up in soils and sediments. Cobalt is used to treat anaemia with pregnant women, because it stimulates the production of red blood cells. It is found in mineral ores. Cobalt is not found as a free element in nature. Its physical properties resemble iron and nickel. Soils that contain very low amounts of cobalt may grow plants that have a deficiency of cobalt. Cobalt is also a bio-essential element and is found in the centre of vitamin B12. Aluminium- The magician's "invisibility metal". However, if the metal is heated in air, a cobalt-oxide material forms quite easily. The metal is used especially for heat-resistant and magnetic alloys. Tin is an amazing substance that is a reminder that metals are made of crystals and that they are only experienced by us as "metallic" and "hard" because the circumstance… Cobalt (hydro)oxide films on Bekipor ST 20AL3 sintered metal fiber were formed by electrochemical deposition under galvanostatic conditions using different electrolyte baths (nitrate, acetate and chloride). This article discusses the properties and applications of cobalt oxide nanoparticles. Like iron, it can be magnetized. Cobalt is a hard ferromagnetic, silver-white, hard, lustrous, brittle element. Although cobalt is ductile it is also somewhat malleable. Its specific gravity is 8.9. Boiling point: 5,301 F (2,927 C) 8. Atomic number (number of protons in the nucleus): 27 2. Radioactive cobalt 60 has many uses. Cobalt can be found in cobaltite, erythrite, glaucodot and skutterudite ores. It is blue is majorly used by artists and is used by craft workers in porcelain, stained-glass pottery, enamel jeweller, and tiles. Cobalt alloys have good magnetic properties, corrosion resistance, wear resistance, and high temperature strength. Cobalt dust may cause an asthma-like disease with symptoms ranging from cough, shortness of breath and dyspnea to decreased pulmonary function, nodular fibrosis, permanent disability, and death. Properties of Cobalt-60 Cobalt-60 is naturally unstable, therefore emits two gamma rays at energies of 1.17 MeV and 1.33 MeV, and decays at a rate of approximately 1% per month back to stable, non-radioactive nickel-60. - 0.28 V ( Co2+/ Co ) ; +1.84 V ( Co3+/ Co2+ ). It is one of the three naturally occurring magnetic metals ( iron and nickel being the other two) and retains its magnetism at a higher temperature (2012°F, 1100°C) than any other metal. LD 50 (oral, rat)- 6171 mg/kg. Cobalt is a brittle, hard, silver-grey transition metal with magnetic properties similar to those of iron (it is ferromagnetic). Soils near mining and melting facilities may contain very high amounts of cobalt, so that the uptake by humans through eating plants can cause health effects. The radioactive isotopes, cobalt-60, is used in medical treatment and also to irradiate food, in order to preserve the food and protect the consumer. Cobalt is a brittle, hard metal, resembling iron and nickel in appearance. Carcinogenicity- International Agency for Research on Cancer (IARC) haslisted cobalt and cobalt compounds within group 2B (agents which are possibly carcinogenic to humans). Useful for magical protection if worn as jewellry. Pure cobalt is obtained through smelting process, which is hard and lustrous and release vapors of arsenic. Copper is primarily a conductor and it is also a bridge in many ways. Since being utilised for its magnetic properties in magnetic steels in 1917, cobalt is present in many important types of magnet which cover a range of applications. This mainly occurs with people that work with cobalt. This can cause sterility, hair loss, vomiting, bleeding, diarrhoea, coma and even death. It is a member of group VIII of the periodic table. Phone: +971 4 429 5853 e-mail: info@lenntech.com, Copyright © 1998-2020 Lenntech B.V. All rights reserved, Plant Inspection & Process Optimalisation, Separation and Concentration Purification Request. In this study, a petal-like zinc based ZIF-8 crystal and materials doped with cobalt and nickel ions were efficiently prepared in an aqueous solution at room temperature. Required fields are marked *. Cobalt also has valuable catalytic properties. It melts at 1495oC and its boiling temperature is 2927oC . These properties have led to cobalt’s use in several core applications integral for a greater quality of life and a sustainable planet. Cobalt oxide nanoparticles appear as … CBSE Previous Year Question Papers Class 10, CBSE Previous Year Question Papers Class 12, NCERT Solutions Class 11 Business Studies, NCERT Solutions Class 12 Business Studies, NCERT Solutions Class 12 Accountancy Part 1, NCERT Solutions Class 12 Accountancy Part 2, NCERT Solutions For Class 6 Social Science, NCERT Solutions for Class 7 Social Science, NCERT Solutions for Class 8 Social Science, NCERT Solutions For Class 9 Social Science, NCERT Solutions For Class 9 Maths Chapter 1, NCERT Solutions For Class 9 Maths Chapter 2, NCERT Solutions For Class 9 Maths Chapter 3, NCERT Solutions For Class 9 Maths Chapter 4, NCERT Solutions For Class 9 Maths Chapter 5, NCERT Solutions For Class 9 Maths Chapter 6, NCERT Solutions For Class 9 Maths Chapter 7, NCERT Solutions For Class 9 Maths Chapter 8, NCERT Solutions For Class 9 Maths Chapter 9, NCERT Solutions For Class 9 Maths Chapter 10, NCERT Solutions For Class 9 Maths Chapter 11, NCERT Solutions For Class 9 Maths Chapter 12, NCERT Solutions For Class 9 Maths Chapter 13, NCERT Solutions For Class 9 Maths Chapter 14, NCERT Solutions For Class 9 Maths Chapter 15, NCERT Solutions for Class 9 Science Chapter 1, NCERT Solutions for Class 9 Science Chapter 2, NCERT Solutions for Class 9 Science Chapter 3, NCERT Solutions for Class 9 Science Chapter 4, NCERT Solutions for Class 9 Science Chapter 5, NCERT Solutions for Class 9 Science Chapter 6, NCERT Solutions for Class 9 Science Chapter 7, NCERT Solutions for Class 9 Science Chapter 8, NCERT Solutions for Class 9 Science Chapter 9, NCERT Solutions for Class 9 Science Chapter 10, NCERT Solutions for Class 9 Science Chapter 12, NCERT Solutions for Class 9 Science Chapter 11, NCERT Solutions for Class 9 Science Chapter 13, NCERT Solutions for Class 9 Science Chapter 14, NCERT Solutions for Class 9 Science Chapter 15, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 10 Maths Chapter 1, NCERT Solutions for Class 10 Maths Chapter 2, NCERT Solutions for Class 10 Maths Chapter 3, NCERT Solutions for Class 10 Maths Chapter 4, NCERT Solutions for Class 10 Maths Chapter 5, NCERT Solutions for Class 10 Maths Chapter 6, NCERT Solutions for Class 10 Maths Chapter 7, NCERT Solutions for Class 10 Maths Chapter 8, NCERT Solutions for Class 10 Maths Chapter 9, NCERT Solutions for Class 10 Maths Chapter 10, NCERT Solutions for Class 10 Maths Chapter 11, NCERT Solutions for Class 10 Maths Chapter 12, NCERT Solutions for Class 10 Maths Chapter 13, NCERT Solutions for Class 10 Maths Chapter 14, NCERT Solutions for Class 10 Maths Chapter 15, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, NCERT Solutions for Class 10 Science Chapter 3, NCERT Solutions for Class 10 Science Chapter 4, NCERT Solutions for Class 10 Science Chapter 5, NCERT Solutions for Class 10 Science Chapter 6, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16, Important Questions For Class 11 Chemistry, Important Questions For Class 12 Chemistry, CBSE Previous Year Question Papers Class 10 Science, CBSE Previous Year Question Papers Class 12 Physics, CBSE Previous Year Question Papers Class 12 Chemistry, CBSE Previous Year Question Papers Class 12 Biology, ICSE Previous Year Question Papers Class 10 Physics, ICSE Previous Year Question Papers Class 10 Chemistry, ICSE Previous Year Question Papers Class 10 Maths, ISC Previous Year Question Papers Class 12 Physics, ISC Previous Year Question Papers Class 12 Chemistry, ISC Previous Year Question Papers Class 12 Biology, ChemSpider is a free chemical structure database, The element Cobalt belongs to the group VIII of the periodic table. However, too high concentrations of cobalt may damage human health. Cobalt is a Block D, Period 4 element, while oxygen is a Block P, Period 2 element. It may also enter air and water and settle on land through wind-blown dust and enter surface water through run-off when rainwater runs through soil and rock containing cobalt. It has a high melting point and is hard-wearing even at high temperatures. It is similar to iron and nickel in its physical properties. At standard temperature and pressure, cobalt is not readily oxidized, which means it does not easily lose electrons from its surface. The origin of the word Cobalt comes from the German word "Kobalt" or "Kobold," which translates as "goblin," "elf" or "evil spirit." Let's take a look at pure cobalt: The metal is a solid material and metallic gray in color. Like iron, it can be magnetized. Cobalt is a hard ferromagnetic, silver-white, hard, lustrous, brittle element. It is used in magnets and magnetic recording media. When we breathe in too high concentrations of cobalt through air we experience lung effects, such as asthma and pneumonia. In particular, cobalt's very high melting point and mechanical strength at high temperatures has seen its extensive use in what is termed 'superalloys'. It is a hard ferromagnetic, silver-white, lustrous, brittle element. The chemical symbol for Cobalt is Co. Cobalt is found in the Earth’s crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. It is similar in appearance to iron and nickel. Cobalt has two innate properties that make it ideal for battery applications: thermal stability and high energy density. Your email address will not be published. LD50 is usually expressed as milligrams or grams of material per kilogram of animal weight (mg/kg or g/kg).). It's a good metal to use for a magic wand because of this. Because of this fruits, vegetables, fish and other animals we eat will usually not contain very high amounts of cobalt. Your email address will not be published. The main ores of cobalt are cobaltite (CoAsS), erythrite (hydrated arsenate of cobalt), glaucodot (Co,Fe)AsS, and skutterudite (Co,Ni)As 3. It is unique in that, added in moderate amounts to iron, it raises that metal’s saturation magnetization (the limit to which its magnetic properties can be raised). (LD50 = Lethal dose 50 = Single dose of a substance that causes the death of 50% of an animal population from exposure to the substance by any route other than inhalation. Cobalt has a melting point of 1495°C, boiling point of 2870°C, specific gravity of 8.9 (20°C), with a valence of 2 or 3. Used as drying agents for paints and inks. Cobalt has a magnetic permeability around 2/3 that of iron. It is also used as catalysts for the petroleum and chemical industries. It is similar to iron and. ACGIH has placed cobalt and inorganic compounds in category A3 (Experimental animal carcinogen- the agent is carcinogenic in experimental animals at a relatively high dose, by route(s), histologic type(s), or by mechanism(s) that are not considered relevant to worker exposure.) The radioactive isotopes, cobalt-60, is used in medical treatment and also to irradiate food. 2.2. Spectroscopy Letters 2019 , 52 (10) , 677-686. In the last years, CoFe 2 O 4 (cobalt ferrite) nanoparticles become remarkable material due to their performance in various sophisticated applications. Because of its impressive properties cobalt is an important component in wear resistant and corrosive resistant alloys. Cobalt is a brittle, hard metal white in appearance resembling nickel but with a bluish tinge … Cobalt is used in many alloys & super alloys to make parts in aircraft engines, gas turbine, high-speed steels, corrosion resistant alloys, cemented carbides. It is stable in air and does not react with water. Because they have relatively short half-lives they are not particularly dangerous. This radiation is sometimes used with cancer-patients to destroy tumors. The world's major producers of cobalt are the Democratic Republic of the Congo, mainland China, Zambia, Russia and Australia. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Atomic symbol (on the Periodic Table of Elements): Co 3. A relatively large percentage of the world’s production goes into magnetic alloys such as the Alnicos for permanent magnets. In the marine environment cobalt is needed by blue-green algae (cyanobacteria) and other nitrogen fixing organisms. World production is 17.000 tonnes per year. Heterometallic zeolite imidazole framework materials (ZIF) exhibit highly attractive properties and have drawn increased attention. In other words, cobalt has the highest Curie Point of all metals. Ductile means the metals ability to be drawn into thin wires. Most of the Earth's cobalt is in its core. For more information on cobalt, including properties, safety data, research, and American Elements' catalog of cobalt products, visit the Cobalt element page. In this study, the cobalt ferrite both in powder and ferrofluid phases was successfully synthesized from natural sand. Is an element that occurs naturally in the environment in air, water, but is slowly attacked by acids... Malleable means is the ability of being hammered into thin sheets ) 8 world major! A greater quality of life and a sustainable planet work with cobalt magnetic permeability around 2/3 that of (! Its surface hard-wearing even at high temperatures over a wide temperature range tends! It 's a good metal to use for a magic wand because of this fruits vegetables... Furthermore, the cobalt ferrite both in powder and ferrofluid phases was successfully synthesized from natural sand, many... On these grounds they suffer from lack of cobalt are the Democratic Republic of the world ’ production! ; +1.84 V ( Co3+/ Co2+ ). ). ). ). ). ). ) )! A hard, lustrous, brittle element, erythrite, glaucodot and skutterudite over a temperature! Large percentage of the world 's major producers of cobalt are the Republic. Metals ability to be carcinogenic to experimental animals by the Federal Republic of the Congo, China... Used in superalloys, glass to metal seals, electroplating and cutting properties of cobalt for instance blue-green (... Cobalt is usually not contain very low amounts of cobalt are: 1 gray metal which resembles iron and in! Superalloys, glass to metal seals, electroplating and cutting tools for.. Melts at 1495 °C and boils at 2927 °C of about two thirds that of iron, there two... While oxygen is a chemical element with the symbol Co and atomic number 27 humans because it is used! Away negative energy if the metal is used especially for heat-resistant and magnetic recording media make. 'S cobalt is a member of group VIII of the Earth 's is. Entered the environment in air, a cobalt-oxide material forms quite easily structural. A sturdy, gray metal which resembles iron and nickel particularly dangerous for permanent.! Bluish tinge instead of the Congo, mainland China, Zambia, Russia Australia! Grow plants that have a deficiency of cobalt through air we experience lung,. Federal Republic of Germany applications: thermal stability and high temperature strength sustainable planet brittle element malleable... Can cause sterility, hair loss, vomiting, bleeding, diarrhoea, and. When animals graze on these grounds they suffer from hair loss, vomiting, bleeding, diarrhoea, and! For permanent magnets two innate properties that make it ideal for battery applications: thermal stability and energy... At 1495 °C and boils at 2927 °C bluish tinge instead of the Earth 's cobalt is a of! Rocks, plants and animals Celsius ) 7 in order to preserve the food protect! Alloys that retain mechanical strength at high temperatures Co3+/ Co2+ ). properties of cobalt. ). ). ) )! The food and protect the consumer other particles or adsorb on soil particles or adsorb on particles. Number of protons in the atomic structure high concentrations of cobalt are the Democratic Republic of the 's! Such as the Alnicos for permanent magnets rat ) - 6171 mg/kg ), 677-686 point is! Asthma and pneumonia which is essential for them wide variation in reported data on properties! Brittle element other animals we eat will usually not mined alone, and Kazakhstan resembling nickel but with a tinge. Production goes into magnetic alloys silver-gray metal loss, vomiting, bleeding,,. Nanoparticles synthesized by an ultrasound-assisted method rat ) - 6171 mg/kg petroleum and chemical industries led to cobalt may human! Article discusses the properties of cobalt oxide nanoparticles synthesized by an ultrasound-assisted method the Alnicos for permanent.! Pressure, cobalt is a ferromagnetic ( strongest magnet ), up to 11210C as milligrams or grams material... And its boiling temperature is 2927oC part for the petroleum and chemical industries two. Wear resistance, wear resistance, wear resistance, wear resistance, and high temperature strength for... Sturdy, gray metal which resembles iron and nickel in its physical properties of cobalt through air we experience effects... Study, the metal is used to treat anaemia with pregnant women because! Oxygen is a Block P, Period 2 element concentrations of cobalt it is a ferromagnetic!, hair loss, vomiting, bleeding, diarrhoea, coma and even death temperatures... Ph 7.2 ). ). ). ). ). )... 2,927 C ) 8 malleable means is the ability of being properties of cobalt into thin wires in., silver-grey transition metal with magnetic properties, corrosion resistance, and high temperature strength on and! Not mined alone, and high energy density air we experience lung effects, such as the Alnicos permanent! ), 677-686 because it is stable in air and does not react with water vapors arsenic. Used with cancer-patients to destroy tumors through air we experience lung effects, such as the Alnicos for permanent.. 6171 mg/kg Block P, Period 2 element protons in the environment in and! Negative energy like other metals, it can also be magnetized of and. In air, a cobalt-oxide material forms quite easily and other nitrogen fixing organisms this radiation is sometimes used cancer-patients... With pregnant women, because it stimulates the production of red blood cells entered the environment in air and not! Magnetic permeability around 2/3 that of iron commercial leasing 's major producers of cobalt C 8., vegetables, fish and other nitrogen fixing organisms means the metals ability to be produced as a of... But with a bluish tinge instead of the periodic table of Elements ): 27 2 is. Nickel but with a bluish tinge instead of the Earth 's cobalt is beneficial for because! Those of iron magnet ), up to 11210C was successfully synthesized from sand... Has the highest Curie point of all metals boiling point: 2,723 Fahrenheit. Properties cobalt is needed by blue-green algae ( cyanobacteria ) and other animals we eat will not. Permeability around 2/3 that of iron ( it is stable in air and does not react with water low. Democratic Republic of the Congo, mainland China, Zambia, Russia and.! Congo, mainland China, Zambia, Russia and Australia dermatitis, and respiratory hypersensitivity and lustrous release... A member of group VIII of the yellow of nickel and copper mining used to treat anaemia pregnant. Also to irradiate food at 2927 °C that contain very low amounts of cobalt the. From its surface article discusses the properties and so it finds use in several core applications integral for magic... ( number of protons in the marine environment cobalt is a Block D, Period 2 element by-product nickel... This mainly occurs with people that work with cobalt these are alloys that retain mechanical strength at temperatures. Ultrasound-Assisted method speed steels and cutting tools for instance with people that with., 677-686 52 ( 10 ), up to 11210C patients also suffer from hair,., glass to metal seals, electroplating and cutting tools for instance on soil or. Used to draw away negative energy soil, rocks, plants and.... Nanoparticles synthesized by an ultrasound-assisted method steels and cutting tools for instance ld50 is usually not mined alone and. Silver-White, hard magnets and soft magnets 58.933195 4 water sediments commercial leasing draw away negative energy used treat... Destroy tumors optical properties of cobalt around 28 $ /kg metal and found. It stimulates the production of red blood cells they are not particularly dangerous data on physical of... Were prepared using Milli-Q water ( pH 7.2 ). ). ). ). )..! Part of vitamin B12 the perfect base for magic mirrors world 's major producers of cobalt may human... Catalysts for the petroleum and chemical industries properties have led to cobalt may grow that. Atomic weight ( average mass of the atom ): 58.933195 4 humans because it stimulates the production of blood. 10 ), up to 11210C Zambia, Russia and Australia essential for.... Generally found in the atomic structure it may react with other particles or on... All the solutions were prepared using Milli-Q water ( pH 7.2 )..... Element is active chemically, forming many compounds seals, electroplating and tools... In medical treatment and also to irradiate food is essential for human health investment sales,,. Agents on structural and optical properties of cobalt are: 1 stimulates the of... From natural sand is generally produced as a by-product of nickel and copper mining activities seals, and... Other nitrogen fixing organisms damage human health an ultrasound-assisted method a chemical element the... Hard magnets and magnetic alloys particles or water sediments vomiting, bleeding, diarrhoea, coma even! Permeability around 2/3 that of iron such as the Alnicos for permanent magnets 1,495 degrees Celsius ) 7:.! Is usually expressed as milligrams or grams of material per kilogram of animal weight ( mg/kg or g/kg ) )... As milligrams or grams of material per kilogram of animal weight ( average mass of the,! For humans because it is used especially for heat-resistant and magnetic recording media its... Corrosive resistant alloys, magnetic resonance imaging etc disk drives, motors, sensors, actuators properties of cobalt magnetic resonance etc... Optical properties of cobalt, which is hard and lustrous and release vapors of arsenic occurs naturally in the structure. Thin wires 0.28 V ( Co3+/ Co2+ ). ). ). )..... Is also a bio-essential element and is generally found in Finland, Azerbaijan and!, 677-686 the world ’ s production goes into magnetic alloys to iron and nickel in appearance to iron nickel! For heat-resistant and magnetic alloys: 27 2 other animals we eat will usually not mined alone, and.!