Thorium nitrate
Nitric acid, thorium(4+) salt; Thorium nitrate ((Th(NO 3) 4)) Thorium tetranitrate; Thorium(4+) nitrate; View All. Deleted or Replaced CAS Registry Numbers. 1, 3, 8. CAS INSIGHTS TM. CAS Common Chemistry is provided under the Creative Commons CC BY-NC 4.0 license. By using CAS Common Chemistry, you …
Thorium Nitrate | The Merck Index Online
Thorium Nitrate. Molecular formula. N 4 O 12 Th. Molecular weight. 480.05. Percent composition. N 11.67%, O 39.99%, Th 48.34%.
Thorium oxide Definition & Meaning
thorium oxide: [noun] a refractory crystalline compund ThO2 obtained usually as a dense white powder by igniting thorium nitrate and used chiefly in incandescent gas mantles, in crucibles and refractories, in silica-free optical glass, and in catalysts — called also#R##N# thoria.
Thorium | Description, Properties, & Uses | Britannica
Thorium exhibits an oxidation state of +4 in almost all of its compounds. The Th 4+ ion forms many complex ions. The dioxide (ThO 2), a very refractory substance, has many industrial applications; thorium …
Molten Salt Reactors
Thorium, uranium, and plutonium all form suitable fluoride salts that readily dissolve in the LiF-BeF 2 (FLiBe) mixture, and thorium and uranium can be easily separated from one another in fluoride form. Batch reprocessing is likely in the short term, and fuel life is quoted at 4-7 years, with high burn-up. ... Hot nitrate salt at about 600°C ...
Thorium Nitrate Market Share: 2031 Report
Published Apr 11, 2024. + Follow. Thorium Nitrate Market size was valued at USD xx.x Billion in 2023 and is projected to reach USD xx.x Billion by 2031, growing at a CAGR of xx.x% from 2024 to 2031.
TOXICOKINETICS, SUSCEPTIBLE POPULATIONS, …
Thorium nitrate had an absorption rate 4 times greater than thorium dioxide, and the absorption rate of thorium chloride was 10 or 20 times greater than thorium dioxide, depending on concentration. The absorption differences are attributable to different solubilities of the various chemical forms.
Thorium's Long-Term Potential in Nuclear Energy: New IAEA …
Thorium is a silvery, slightly radioactive metal commonly found in igneous rocks and heavy mineral sands. It was named after Thor, the god of thunder in Norse mythology. It is three to four times more abundant in nature than uranium but historically has found little use in industry or power generation. This is partly because thorium in …
Thorium
Thorium is a naturally occurring radioactive metal that is found in soil, rock, and water. It is formed by the radioactive decay of uranium. Minerals such as monazite, thorite, and thorianite are rich in thorium and may be mined for the metal. Thorium has coloring properties that have made it useful in ceramic glazes.
Preparation of highly pure thorium nitrate via thorium sulfate …
1. Introduction. An alternative process is described in this paper for the separation of thorium from rare earths and for the production of highly pure thorium nitrate by controlled preferential precipitation of thorium peroxide. The initial raw material is a technical grade thorium sulfate produced industrially from the Brazilian monazite.
Crystal chemistry of thorium nitrates and chromates
The structural units of these compounds consist of a chain of thorium and nitrate polyhedra (1), isolated thorium hexanitrate clusters (2, 3), an isolated thorium pentanitrate dihydrate cluster (4), and a sheet (6) and framework (5) of thorium and chromate polyhedra. These structures illustrate the complexity inherent in the crystal …
Thorium dioxides Definition & Meaning
The meaning of THORIUM OXIDE is a refractory crystalline compound ThO2 obtained usually as a dense white powder by igniting thorium nitrate and used chiefly in incandescent gas mantles, in crucibles and refractories, in silica-free optical glass, and in catalysts —called also thoria.
Table 4-2, Physical and Chemical Properties of Thorium and …
Thorium dioxide (ThO 2) Thorium nitrate, tetrahydrate (Th(NO 3) 4 4H 2 O) Thorium fluoride, tetrahydrate (ThF 4 4H) Molecular weight: 232.04 a: 264.04 a: 552.12 a: 380.09 a: Color: Gray a: White b: Colorless a: Not known: Physical state: Solid a: Powdery solid b: Crystalline solid a: Crystalline solid a: Odor: Not known: Not known: Not known ...
Thorium nitrate | chemical compound | Britannica
Uses of potassium nitrate include the manufacture of fertilizers, pesticides, glass, fireworks, explosives, and rocket fuels. It is also used as a food preservative, and …
Thorium nitrate Definition & Meaning
The meaning of THORIUM NITRATE is an oxidizing salt Th (NO3)4 obtained as a deliquescent crystalline mass by extraction of monazite sand in a series of steps and used chiefly in producing thorium oxide by ignition in the manufacture of …
Thorium oxides Definition & Meaning
The meaning of THORIUM OXIDE is a refractory crystalline compound ThO2 obtained usually as a dense white powder by igniting thorium nitrate and used chiefly in incandescent gas mantles, in crucibles and refractories, in silica-free optical glass, and in catalysts —called also thoria.
History and Background | US EPA
The Lindsay Light Co. used the radioactive chemical thorium nitrate to manufacture their gaslight mantles. Lindsay obtained thorium containing ore, typically monazite, to refine and extract the thorium. The refining process produced a sand-like waste known as thorium mill tailings, which were used for fill in the low-lying Streeterville …
Molten salt for advanced energy applications: A review
The primary uses of molten salt in energy technologies are in power production and energy storage. The physical characteristics and heat transfer properties of molten salt are well-suited to advanced high-temperature energy technologies, such as molten salt reactors or hybrid energy systems. This section discusses the two primary …
Thorium processing | Uses, Benefits & Risks | Britannica
thorium processing, preparation of the ore for use in various products. Thorium (Th) is a dense (11.7 grams per cubic centimetre) silvery metal that is softer than steel. It has a high melting temperature of approximately 1,750 °C (3,180 °F). Below about 1,360 °C (2,480 °F), the metal exists in the face-centred cubic (fcc) crystalline form ...
Thorium-nitrogen multiple bonds provide evidence for pushing
The system can evolve with another instance of the thorium-azide complex 2 that can extract the benzyl ligand to generate thorium-benzyl 3 and liberate the thorium-amide 5 and KN 3.
Separation of lead-212 from natural thorium solution …
The extraction of lead-212 (212 Pb) from radioactive thorium (Th) waste is immensely important, as it serves to mitigate environmental risks associated with radioactive waste and provides a vital source for medical isotopes.To economically extract 212 Pb from thorium, we synthesized a novel extractant known as 2,13 …
Thorium nitrate hydrate 99% (T), ~4 mol/mol water | Sigma …
Thorium nitrate hydrate 99% (T), ~4 mol/mol water; CAS Number: 1; EC Number: 237-514-1; Linear Formula: Th(NO3)4 · aq; find Sigma-Aldrich-89150 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich ... core: thorium. extent of labeling. 3.93 kBq/g specific activity. impurities ~4 …
Thorium Nitrate | The Merck Index Online
Monograph ID M10800 Title Thorium Nitrate Molecular formula N 4 O 12 Th Molecular weight 480.05 Percent composition N 11.67%, O 39.99%, Th 48.34%
HEALTH EFFECTS
This toxicological profile for thorium includes chemical, radiological, and physical information for elemental thorium (Th), thorium dioxide (ThO 2), thorium nitrate tetrahydrate …
Extraction studies of uranium into a third-phase of thorium nitrate
Extraction behavior of 1 × 10−2–0.1 M U(VI) from aqueous phases containing 0.86 M Th(IV) at 4 M HNO3 in 1.1 M tributyl phosphate (TBP) and 1.1 M N,N-dihexyl octanamide (DHOA) solutions in different diluents viz. n-dodecane, 10% 1-octanol + n-dodecane, and decahydronaphthalene (decalin) was studied. Third-phase formation was …
Nature, Sources, Resources, and Production of Thorium
Thorium is a naturally occurring, slightly radioactive element. It is widely distributed in nature with an average concentration of 10.5 ppm Th in the upper earth's crust. In general, thorium occurs in relatively small number in Th-enriched minerals: thorite, thorianite, monazite, bastnaesite, and thorogummite. However, the main world resources …
The Radioactivity of Thorium in Lanterns
Thorium in Lanterns. The radioactive properties that lanterns possess come about in the manufacturing process when the mantles are being made and coated with various things to make it glow brighter and longer. …
The efficacy of DTPA treatment after deposition of thorium nitrate …
When the initial mass concentration of thorium simulated human exposure to four times the annual limits on intake for 232Th, the prompt (300 or 1000 mumol kg-1 body weight at 0.02 d) or repeated (30 or 300 mumol kg-1 body weight at 0.02, 0.25, 1,2,3 d) administration of CaDTPA were at best only moderately successful for enhancing the ...
Compounds of Thorium with Nitrogen | SpringerLink
The chemical properties of thorium differ from those of the other light members of the actinide series in exhibiting the almost unique valence 4+ (exclusively 4+ in the nitrides at sufficiently high N 2 pressures) with the exceptions of ThN, ThS, and Thl 2.Chemical bonds formed by Th show very little f character, the 5f atomic orbitals forming only high-energy …
Thorium Nitrate | AMERICAN ELEMENTS
Thorium Nitrate is a highly water soluble crystalline Thorium source for uses compatible with nitrates and lower (acidic) pH. All metallic nitrates are inorganic salts of a given metal cation and the nitrate anion. The nitrate anion is a univalent (-1 charge) polyatomic ion composed of a single nitrogen atom ionically bound to three oxygen ...