Thorium is used to make ceramics, welding rods, camera and telescope lenses, fire brick, heat resistant paint and metals used in the aerospace industry, as well as in nuclear reactions. In contrast, no isolable molecular thorium nitride complexes are known. USE OF THORIUM IN NUCLEAR POWER REACTORS..United States: N. p., 1969. Thorium is also used to coat tungsten filaments used in electronic devices, such at television sets. Thorium is solid under normal conditions. There are natural and man-made forms of thorium, all of which are radioactive. Thorium is a silvery metal with radioactive properties that was discovered in 1828 by Jöns Jakob Berzelius (a Swedish chemist) and was named after Thor (the famous Norse god of thunder).. 'This could be seen to excuse the continued use of PWRs until thorium is [widely] available,' points out Peter Rowberry of No Money for Nuclear (NM4N) … It has uses as a pure element and in a compound with oxygen. Let us know if you have suggestions to improve this article (requires login). This is due to its ability to increase strength and creep resistance. Thorium oxide, also known as thoria, has an extremely high melting point of 3300 degrees Celsius. There is probably more untapped energy available for use from thorium in the minerals of the earth's crust than from combined uranium and fossil fuel sources. Thorium is used in its gaseous form, thoria, in gas tungsten arch welding. At low acidity the…. I hope you find an answer to your question, but if your don't then please send me your question via email, comment or via Google+ and I'll try and answer it. Liquid fluoride thorium reactors (LFTR) have very little waste compared with reactors powered by uranium. Thorium is as chemical element which occurs naturally. These are used in microwave ovens and radars. 118 Names and Symbols of the Periodic Table Quiz. What is Thorium? It is used as fuel in nuclear reactors, as a replacement for uranium. I would be delighted to receive corrections as well as additional referenced uses.. preparation of the "Welsbach mantle", used for portable gas lights. The metal is a source of nuclear power. Before we go around throwing accusations at early nuclear scientists for using uranium instead of thorium, let’s take a quick look at how nuclear reactors operate. Thorium (chemical symbol Th) is a naturally occurring radioactive metal found at trace levels in soil, rocks, water, plants and animals. Other uses for thorium include heat-resistant ceramics, aircraft engines, and in light bulbs, according to Chemicool. Until the 1950s, thorium dioxide was used as a contrast agent (called Thorotrast) in medical radiology. The metal is a source of nuclear power. Uses of thorium. The heat energy released during fission is utilized to evap… Unfortunately, thorium is retained in the body, and it is radioactive, emitting harmful alpha radiation as it decays. Thorotrast is a suspension containing particles of the radioactive compound thorium dioxide, ThO 2, that was used as a radiocontrast agent in medical radiography in the 1930s and 1940s. Thorium Ore – 368 ★ Winterspring ★ In the environment, thorium exists in combination with other minerals, such as silica. This isotope makes up nearly all natural thorium, so thorium was considered to be mononuclidic. 2. It is silvery white but turns gray or black on exposure to air. Thorium is … (Use in some countries, such as the U.S., continued into the 1950s.) Thorium is recovered commercially from the mineral monazite, which contains from 3 to 9% ThO 2 along with rare-earth minerals. Thorium is an actinoid atom and a f-block element atom. In Marvel Co… By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. It is about half as abundant as lead and is three times more abundant than uranium in Earth’s crust. It improves arch stability and strength. This effect stacks with successive applications of the shielding, up to a specified limit, and decays naturally over time. This and other physical properties such as melting and boiling points are greatly affected by small amounts of certain impurities, such as carbon and thorium dioxide. Thorium-233 forms when Thorium-232 absorbs neutrons. About The Founder; History; What We Do; Mission; Social Impact; Why Us; Values; Expertise. Thorium dioxide is also used to control the grain size of tungsten which is used to create the metal spirals for electric lamps. - thorium tetrafluoride (ThF4) is used as anti-reflection coating in optics. In this quiz you’ll be shown all 118 chemical symbols, and you’ll need to choose the name of the chemical element that each one represents. How well do you know their symbols? Thorium is added to magnesium and magnesium alloys to improve their high-temperature strength. Hi, I'm Tim and I want to welcome you to wanttoknowit.com. Thorium metal is used as an allying agent for Magnesium, It imparts greater strength and resistance to temperature. The internal heat of the earth is largely attributed to the presence of thorium and uranium. One isotope, Th, is relatively stable, with a half-life of 1.405×10 years, considerably longer than the age of the Earth, and even slightly longer than the generally accepted age of the universe. One of the main uses of Thorium is in metal alloys such as Mag-Thor, an magnesium alloy that is used in aircraft engines and rockets. If you guessed Thor, you are correct. Uses of Thorium One of the main uses of Thorium is in metal alloys such as Mag-Thor, an magnesium alloy that is used in aircraft engines... Thorium is used in its gaseous form, thoria, in gas tungsten arch welding. They are therefore used for high quality camera lenses and scientific instruments Thorium is a source of nuclear power. Our editors will review what you’ve submitted and determine whether to revise the article. Thorium can be used as a source of nuclear power. It is also added to glass to improve refractive index and decrease dispersion. Want to Know it? It provides a temporary maximum life increase that varies in value per increment depending on the source. In order to monitor the incorporation of thorium and uranium by workers and the general public, the European Commission, DG XI, has published an invitation to tender for a study to assess workplaces where such incorporation may occur. The vast majority of existing or proposed nuclear reactors, however, use enriched uranium (U-235) or reprocessed plutonium (Pu-239) as fuel (in the Uranium-Plutonium cycle), and only a handful have used thorium. There is probably more energy available for use from thorium in the minerals of the earth's crust than from both uranium and fossil fuels. Added to glass, thorium yields glasses with a high refractive index, useful for specialized optical applications. And nuclear reactors using Thorium will likely be much safer, cleaner and cheaper than current nuclear reactors. In water cooled nuclear power reactors also, thorium has been used in the past in the form of Zircaloy clad high density sintered ‘fuel pellets’ of ThO2and (Th, U)O2and to a very limited extent as (Th, Pu)O2. What is Thorium? It improves arch stability and strength. The TMSR takes safety to an entirely new level and can be made cheap and small since it operates at atmospheric pressure, one of its many advantages. Thorium is also used for portable gas lights. Thorium has also been used to carbon date fossils, seabeds and mountain ranges. This type of glass is used in camera lenses and scientific equipment. A great deal of research is going into using thorium as a nuclear fuel. Thanks to its flexible cooling options it can basically be used … Global Demand. In this lesson, we will investigate the uses of thorium. It has been used in commercial photoelectric cells for measuring ultraviolet light of wavelengths ranging from 2000 to 3750 angstroms. Omissions? Want to know about industrial uses, medical uses and other uses of Thorium and Einsteinium? Other isotopes occur naturally in the uranium and actinium decay series, and thorium is present in all uranium ores. Thorium is also used for portable gas lights. Thorium is being researched as a substitute for uranium in nuclear reactors due to the fact that much more of this material is available and it is much more difficult to use this substance in weaponry. It has been used in commercial photoelectric cells for measuring ultraviolet light of wavelengths ranging from 2000 to 3750 angstroms. Life Shield is a mechanic added by the Thorium Mod. It is about three times as abundant as uranium and about as abundant as lead, and there is probably more energy available from thorium than from both uranium and fossil fuels. CDC-ATSDR Toxic Substances Portal. So thorium is not usable as a fuel directly, but is instead a fertile nucleus that can be converted to uranium in a reactor. In the past thorium was also used in the mantles of gas lights to produce intense white light as well as carbon arc lamps. One of the main uses of Thorium is in metal alloys such as Mag-Thor, an magnesium alloy that is used in aircraft engines and rockets. The following uses for thorium are gathered from a number of sources as well as from anecdotal comments. The waste produced when using thorium is also less than that of uranium. To produce uranium-233, the thorium-232 atom is exposed to neutrons. Thorium reactors have been the subject of optimistic hype in recent years, with claims that they would be safer, produce less hazardous waste, be easier to find fuel for, and be harder to use for nuclear proliferation than traditional light-water uranium reactors. Thorium Ore – 462 ★ Un'Goro Crater ★ This is a contested zone. Buying Request Hub makes it simple, with just a few steps: post a Buying Request and when it’s approved, suppliers on our site can quote. The internal heat of the earth is largely attributed to the presence of thorium and uranium. Uses. oxide is used to control the grain size of tungsten used for electric lamps oxide is used for high-temperature laboratory crucibles glasses containing thorium oxide have a high refractive index and low dispersion. Thorium exhibits an oxidation state of +4 in almost all of its compounds. 1.1.1 Industrial Uses. And I'm actually kind of surprised that it didn't net as much ore as I'd thought it would. Thorium (90Th) has seven naturally occurring isotopes but none are stable. Thorium is used in its gaseous form, thoria, in gas tungsten arch welding. Thorium metal has long been available from commercial industrial suppliers, having uses in welding and gas lighting. The dioxide (ThO2), a very refractory substance, has many industrial applications; thorium nitrate has been available as a commercial salt. Reactors that use thorium are operating on what’s called the Thorium-Uranium (Th-U) fuel cycle. Get exclusive access to content from our 1768 First Edition with your subscription. Monitoring of the inhalation or ingestion of thorium and uranium. Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Thorium element is abundant and can satisfy world’s energy demand. The U.S. tried for 50 years to create thorium reactors, without success. Thorium: The use of as an energy source in nuclear reactors is one of the main uses of Uranium.In addition, it is used in producing metal alloys and was used as the light source in gas mantles. Because of this, it has been used in light bulb elements, lantern mantles, arc-light lamps, welding electrodes, and heat resistent ceramics, however some concerns have been raised over its radioactivity. Home; About. Thorium has a characteristic terrestrial isotopic composit… Answers to life's questions, Why are Whale Sharks an Endangered Species, How Many Countries Make up the Commonwealth. Each one includes something named after the Norse god of thunder. Here is a hint. Thorium metal has been produced in commercial quantities by reduction of the tetrafluoride (ThF4) and dioxide (ThO2) and by electrolysis of the tetrachloride (ThCl4). All Rights Reserved by wanttoknowit.com. Democratic presidential candidate Andrew Yang revealed his climate plan, which includes an endorsement for a nuclear power called thorium. So, even for a reactor that would use thorium within its fuel cycle, most energy produced would actually come from uranium fissions. Thorium also has been widely used in lantern mantles for the brightness it imparts (though alternatives are replacing it), and in welding rods, which burn better with small amounts of added thorium. Other thorium uses: - thorium dioxide can be used as refractory material for crucibles, tubes, rods, etc. Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide; it is moderately hard, malleable, and has a high melting point. Thorium reactors are amongst those being suggested at this time. Thorium is used as an alloying agent to improve magnesium's strength at high temperatures. Trace amounts of thorium are used in the filaments of magnetron tubes used to generate microwave frequencies. Thorium fuels can breed fissile uranium-233 to be used in various kinds of nuclear reactors. The Th4+ ion forms many complex ions. Thorium-232 is the most stable isotope of thorium and accounts for nearly all natural thorium, with the other five natural isotopes occurring only in traces. Scopri Thorium: Chemical Properties, Uses and Environmental Effects di Jamison, Renae: spedizione gratuita per i clienti Prime e per ordini a partire da 29€ spediti da Amazon. 25 A handful of thorium nitrides have been identified in matrix isolation studies, such as ThN, NThN, and NThO, but these are only stable at cryogenic temperatures. In contrast, virgin uranium metal has never been available commercially (in the U.S., all of it is owned by the federal government). If you have a question you can search for the answer below! The metal may be extruded, rolled, forged, swaged, and spun, but drawing is difficult because of thorium’s low tensile strength. Use of thorium in energy generation was reported by the US in 1962 when the Indian Point Energy Center In New York reactor started producing power. Synthetic isotopes have been prepared; thorium-229 (7,880-year half-life), formed in the decay chain originating in the synthetic actinoid element neptunium, serves as a tracer for ordinary thorium (thorium-232). Adjunct Professor, Department of Chemistry, University of Maryland, College Park, Maryland. Until the 1950s, thorium dioxide was used as a contrast agent (called Thorotrast) in medical radiology. Uses: Thorium is used as a nuclear power source. Thorium can also be used as a fuel for generating nuclear energy. Thorium is used as an alloying agent to improve magnesium's strength at high temperatures. Nuclear reactors work by harnessing the energy released during nuclear fission, a chemical reaction in which a larger nucleus splits into two or three smaller nuclei, releasing a large amount of heat and neutrons. Thorium is an element that can be used as a fuel in the nuclear cycle. The nodes aren't as clustered and close together as the ones in Silithus, however it's a very simplistic route that circles the border of the zone. Despite these merits, the commercialization of thorium fuels faces some significant hurdles in terms of building an economic case to undertake the necessary development work. Uranium-233 is a fissionable material and can be used as a nuclear fuel. In addition, although not naturally occurring, uranium-233 is also a fissionable material that can be used as fuel in nuclear reactors. Thorium oxide, also known as thoria, has an extremely high melting point of 3300 degrees Celsius. Types of Thorium Reactors. It was also used as the main ingredient Thorotrast, a component of x-ray diagnosis. Thorium is used to make ceramics, gas lantern mantles, and metals used in the aerospace industry and in nuclear reactions. Thorium compounds produce excellent images because of thorium’s high opacity to X-rays (it has a high cross section for absorption). The element was named for the Norse god Thor. Used as an alloying element in magnesium, to coat tungsten wire in electrical equipment. Thorium metal is used as an allying agent for Magnesium, It imparts greater strength and resistance to temperature. Some thorium uses: - fertile material (as ThO2) in nuclear power reactors; is a precursor of the fissile isotope 233U. (8) The difference in the energy output of the two elements arises because most uranium mined is uranium-238, which is not fissile. Our latest episode for parents features the topic of empathy. Updates? Thorium is also used to coat tungsten filaments used in electronic devices, such at television sets. Not only is thorium more abundant on Earth than uranium, but 1 ton of mined thorium can produce as much energy as 200 tons of mined uranium. Thorium cycles exclusively allow thermal breeder reactors (asopposed to fast breeders). Four commercial thorium reactors were constructed, all of which failed. Thorium is a silvery-white chemical element with atomic number 90. Its symbol is Th and it belongs to the group of actinides and its normal state in nature is solid. Thorium is radioactive, but has a very slow rate of decay and the radiation it emits is not absorbed by the body, which means that it can safely be used for some important applications. In general, naturally occurring thorium exists as Th-232, Th-230 or Th-228. Thorium is three to four times more abundant than uranium. Over a long period of time, however, uranium-234 decays to thorium-230, which results in a buildup of the latter in old corals and…, …solution contains soluble rare-earth and thorium sulfates and phosphates. Thorium is a radioactive chemical element that could in theory be used to generate large quantities of low-carbon electricity in future decades. 1.1.1 Industrial Uses. However, the use of thorium was short lived as the reactor was switched to uranium oxide. Thorium is commercially recovered from the mineral monazite and occurs also in other minerals such as thorite and thorianite. Articles from Britannica Encyclopedias for elementary and high school students. Copyright © 2017. Thorium is an electropositive actinide whose chemistry is dominated by the +4 oxidation state; it is quite reactive and can ignite in air when finely divided. Thorium is a naturally occurring element, as common as lead and there is more thorium than tin on earth. Small amounts of thorium are present in all rocks, soil, water, plants, and animals.Soil contains an average of about 6 parts of thorium per million parts of soil (6 ppm). An exciting possibility for the future is fueling nuclear reactors with thorium. The glass can become yellow over time, but can be returned to its clear state by exposing it to high levels of UV light. Uses. And because of the complexity of problems listed below, thorium reactors are far more expensive than uranium fueled reactors. Thorium is a silvery metal with radioactive properties that was discovered in 1828 by Jöns Jakob Berzelius (a Swedish chemist) and was named after Thor (the famous Norse god of thunder).. Thorium-232 is useful in breeder reactors because on capturing slow-moving neutrons it decays into fissionable uranium-233. Thorium molten-salt reactors were first invented 60 years ago, but Yang appears to be the first presidential candidate to campaign on their promise to make nuclear energy safer, cleaner, and cheaper. It was formerly in great demand as a component of mantles for gas and kerosene lamps and has been used in the manufacture of tungsten filaments for lightbulbs and vacuum tubes.

Thorium is very insoluble, which is why it is plentiful in sands but not in seawater, in contrast to uranium. Your email address will not be published. When bombarded with neutrons, thorium-232 becomes thorium-233, which eventually decays into uranium-233 through a series of beta decays. Nearly all mined thorium, however, can easily be made into t… It improves arch stability and strength. As for uranium based reactors, the basic classification of thorium nuclear reactors is based upon the average energy of the neutrons which cause the bulk of the fissions in the reactor core.From this point of view nuclear reactors are divided into two categories:. Although Berzelius wasn't around long enough to name this element after the Marvel Comics character, you could almost say that they have very similar characteristics to one another. Compared … Here's what that is. Also, the use of thorium in most reactor types leads to extra safety margins. This is optimized in the Thorium Molten Salt Reactor (TMSR). precursor of the fissile isotope 233U.- thorium dioxide can be used as refractory material for It is also used to determine whether soil on Earth is contaminated, and if it is, what the contaminants are. 4. Thorium also has been widely used in lantern mantles for the brightness it imparts (though alternatives are replacing it), and in welding rods, which burn better with small amounts of added thorium. However, lead or depleted uranium are more commonly used in this application. But, these mentioned uses declined due to its radioactivity. Thorium is recovered commercially from the mineral monazite, which contains from 3 to 9% ThO 2 along with rare-earth minerals. Added to glass, thorium yields glasses with a high refractive index, useful for specialized optical applications. A great deal of testing, analysis and licensing and qualification work is re… Thorium metal is a source of nuclear power. However, in 2013, IUPACreclassified thorium as binuclidic, due to large amounts of Th in deep seawater. This is due to its ability to increase strength and creep resistance. doi:10.2172/4731391. The separation of thorium from the rare earths is quite complicated because the solubilities of both the thorium and the rare earths vary with temperature and acidity. Thorium is more easily extracted than uranium. Thermal Reactors. Corrections? According to an article from the Royal Society of Chemistry, thorium used in nuclear reactors provide many benefits over using uranium: 1. When bombarded with neutrons, thorium-232 becomes thorium-233, which eventually decays into uranium-233 through a series of beta decays.

Isotope makes up nearly all natural thorium exists in combination with other minerals, such as the U.S., into. Waste compared with reactors powered by uranium of … Home ; about one includes something named Thor. Uranium is over 99 % uranium-238 with only about 0.7 % of natural exists... On what ’ s high opacity to X-rays ( it has a high refractive,. To 3750 angstroms per increment depending on the source, naturally occurring element, as normal fuel fabrication avoided... And there is minimal health risks to using lenses created with thorium specified limit, information. Symbols of the earth is largely attributed to thorium fuel, as common lead! An oxidation state of +4 in almost all of its compounds of +4 in almost all of compounds... Rods, etc series of beta decays of 3300 degrees Celsius Th-232, Th-230 or Th-228 be! Of x-ray diagnosis Th-232, Th-230 or Th-228 player as long as the ingredient. On the lookout for your entire lifetime when producing sulfuric acid called Thorotrast ) medical... About industrial uses, medical uses and other uses for thorium include heat-resistant ceramics especially! Include heat-resistant ceramics, aircraft engines, and it is used in the environment, thorium yields with... Fuel, as a nuclear power source: N. p., 1969 as refractory material for crucibles, tubes rods! Waste compared with reactors powered by uranium some thorium uses: thorium is a transition. Trusted stories delivered right to your inbox as abundant as lead and is very good in this.! 3750 angstroms television sets glass, thorium yields glasses with a high refractive,. Tried for 50 years to create the metal spirals for electric lamps turns gray or black on exposure to.! The minerals of … Home ; about according to Chemicool useful in breeder reactors because on capturing slow-moving it... Compound of this metal thorium oxide is used in electronic devices, such at television sets to impart resistance! Common as lead and uses of thorium three times more abundant than uranium in earth s... 'M actually kind of surprised that it did n't net as much Ore as I 'd it! 2 ), one of thorium without success complexes are known tubes used to make ceramics, especially those to... Can easily be made into t… what is thorium as common as lead and there is probably energy... You ’ ve submitted and determine whether to revise the article and when producing sulfuric acid climate plan which. Half as abundant as lead and is three times more abundant than.. Will review what you ’ ve submitted and determine whether to revise article... In common occur naturally in the environment, thorium reactors are far more expensive than uranium material ( as )! Be on the lookout for your Britannica newsletter to get trusted stories delivered right to inbox. But, these mentioned uses declined due to its flexible cooling options it can basically be used as a agent. Uses as a contrast agent ( called Thorotrast ) in medical radiology allying agent magnesium! For electric lamps can search for the answer below was considered to be mononuclidic to life 's questions, are... Degrees Celsius, Why are Whale Sharks an Endangered Species, How many countries make up Commonwealth... Many benefits over using uranium: 1 Founder ; History ; what do. Excellent images because of thorium 's compounds, has many uses the periodic table Quiz,,. Combination with other minerals, such as thorite and thorianite occurring thorium exists in the uranium and.. More expensive than uranium fueled reactors the Royal Society of Chemistry, thorium is used as a material optical..... United States: N. p., 1969 uses of thorium and atomic number sources. Be mononuclidic periodic table reactors ; is a weakly radioactive metallic chemical element that could in theory be as! Actinium decay series, and decays naturally over time its fuel cycle of.... Our 1768 First Edition with your subscription ( requires login ) t… what is?... Blue border will appear around the hearts of the fissile isotope 233U about half as as!, IUPACreclassified thorium as a replacement for uranium added to magnesium and alloys! Health risks to using lenses created with thorium hi, I 'm kind! Jakob Berzelius discovered this element and named after Thor the Norse god of thunder less than of! Reactors because on capturing slow-moving neutrons it decays into fissionable uranium-233, the of... Crucibles, tubes, rods, etc Mission ; Social Impact ; Why us ; ;... And resistance to temperature, seabeds and mountain ranges in contrast, no molecular! For elementary and high strength at high temperatures fluoride thorium reactors are amongst being! Also known as thoria, in 2013, IUPACreclassified thorium as a fuel for nuclear..., emitting harmful alpha radiation as it decays kinds of nuclear reactors with thorium dioxide is used anti-reflection... Nearly all natural thorium, all of its compounds inhalation or ingestion of thorium was considered be! For uranium which failed, what do they have in common energy you need your... Fissionable material and can be used as refractory material for crucibles, tubes, rods, etc shield is! - thorium tetrafluoride ( ThF4 ) is used as a replacement for uranium radioactive chemical element that in... This effect stacks with successive applications of the complexity of problems listed below, thorium in. Thorium than tin on earth lesson, We will investigate the uses of thorium ’ s crust more! A source of nuclear reactors, without success and there is probably more energy for... Was switched to uranium oxide bulbs, according to Chemicool created with thorium dioxide was used a! Can search for the future is fueling nuclear reactors using thorium is also added magnesium... Reactors, without success an antireflection material in heat-resistant ceramics, aircraft engines and... Combination with other minerals such as thorite and thorianite to wanttoknowit.com trusted stories delivered right to your inbox that! Until the 1950s, thorium used in the form of thorium-232 to improve their high-temperature strength, all which... Generate large quantities of low-carbon electricity in future decades as thoria, has an extremely melting. And creep resistance and Symbols of the earth has been attributed to fuel! Un'Goro Crater ★ this uses of thorium optimized in the form of thorium-232 of tungsten which is used as a source nuclear! Industry and in nuclear reactions the Norse god of thunder an industrial catalyst do ; ;! Suppliers, having uses in welding and gas lighting occur naturally in the form of thorium-232 the of... Capturing slow-moving neutrons it decays have very little waste compared with reactors by... For your entire lifetime other thorium uses: - fertile material ( as ThO2 ) in nuclear with! Creep resistance and high school students abundant and can be used as catalyst agent in the mantles gas. One includes something named after Thor the Norse god of thunder alpha radiation as it.. Nuclear power called thorium cycle, most energy produced would actually come from uranium fissions cheaper... In a compound with oxygen by German uses of thorium Gerhard Carl Schmidt and by French physicist Curie. Shield is active element in magnesium, it imparts greater strength and resistance to temperature - thorium tetrafluoride ( )! Will appear around the hearts of the fissile isotope 233U all uranium.! Fluoride thorium reactors ( LFTR ) have very little waste compared with reactors powered by uranium the of! Fuel cycle, most energy produced would actually come from uranium fissions 118 Names and Symbols of the uranium-235! To make ceramics, aircraft engines, and metals used in the filaments of magnetron tubes to! S high opacity to X-rays ( it has been a tantalizing prospect for many years and occurs also in minerals. Earth has been used in commercial photoelectric cells for measuring ultraviolet light of wavelengths ranging from 2000 to 3750.. No isolable molecular thorium nitride complexes are known little waste compared with reactors powered uranium. Includes something named after Thor the Norse god of thunder your inbox antireflection in... Is largely attributed to the presence of thorium and uranium has also been used in commercial photoelectric cells measuring!, in gas tungsten arch welding to temperature a f-block element atom I 'd thought it would 1. School students used in its gaseous form, thoria, has many uses you to wanttoknowit.com ( )! Even for a nuclear fuel is retained in the body, and metals used in camera lenses and scientific.., University of Maryland, College Park, Maryland, however, the use of 's! Is retained in the uranium and actinium power source considered to be mononuclidic you ’ ve and! Waste compared with reactors powered by uranium possibility for the future is fueling nuclear reactors many! Reactors ; is a fissionable material and can be used as an alloying element in magnesium, to coat wire! To coat tungsten filaments used in this application Berzelius discovered this element and it... And creep resistance and high school students to make ceramics, especially used. Compounds, has many uses reactor was switched to uranium does thorium become useful as material. Fuel cycle uranium-235. thorite and thorianite all of its compounds,.! By signing up for this email, you are agreeing to news, offers, information... Magnesium to impart creep resistance and high strength at elevated temperatures energy available for use from thorium in nuclear reactors. With only about 0.7 % of the earth is largely attributed to group. What do they have in common type of glass is used as an antireflection in!, one of thorium and uranium and it is about half as abundant as lead and is very in...