Formula:Ce(C₂H₃O₂)3·xH₂O CAS:537-00-8 Mol.wt.371.27(anhydrous basis) Cerium Acetate Hydrate                 

Formula:Ce(OH)4       CAS:12014-56-1 Mol.wt.208.1               Cerium Hydroxide  

Formula:Ce(NH4)2(NO₃)₆        CAS:16774-21-3  Mol.wt.548.22                         Electronic Grade Cerium(IV)Ammonium Nitrate

Formula:Ce₂(CO₃)3·xH₂O CAS:54451-25-1 Mol.wt.460.26(anhydrous basis) Fine Crystalline Spherical Cerium Carbonate Hydrate    

Formula:CeCl₃          CAS:7790-86-5 Mol.wt.246.47            Anhydrous Ceriu(III) Chloride

 Formula:LaCl₃·7H₂O    CAS:10025-84-0    Mol.wt.371.5                 Lanthanum Chloride Heptahydrate

Formula:CeO₂    CAS:1306-38-3 Mol.wt.172.12     Large  Particle  Size  Cerium  Oxide

Formula:CeO₂    CAS:1306-38-3 Mol.wt.172.12      Cerium Oxide

Formula:La₂O₃     CAS:1312-81-8  Mol.wt.325.8        Lanthanum   Oxide

Trimethylaluminum (TMA) is a critical raw material for the production of other metal-organic sources utilized in atomic layer deposition (ALD) and chemical vapor deposition (CVD) processes.   Trimethylaluminum represents one of the simplest organoaluminum compounds. Although its name suggests a monomeric structure, it actually has the formula Al2(CH3)6 (abbreviated as Al2Me6 or TMA), existing as a dimer. This colorless liquid is pyrophoric and plays an industrially significant role, closely related to triethylaluminum.   UrbanMines ranks among the leading suppliers of Trimethylaluminum (TMA) in China. Leveraging our advanced production techniques, we offer TMA with varying levels of purity, tailored specifically for applications in the semiconductor, solar cell, and LED industries.

Bismuth Trioxide (Bi2O3) is the prevalent commercial oxide of bismuth. As a precursor to the preparation of other compounds of bismuth, bismuth trioxide has specialized uses in optical glass, flame-retardant paper, and, increasingly, in glaze formulations where it substitutes for lead oxides.

Bismuth(III) Nitrate is a salt composed of bismuth in its cationic +3 oxidation state and nitrate anions, which the most common solid form is the pentahydrate. It is used in the synthesis of other bismuth compounds.

Boron, a chemical element with the symbol B and atomic number 5, is a black/brown hard solid amorphous powder. It is highly reactive and soluble in concentrated nitric and sulfuric acids but insoluble in water, alcohol and ether. It has a high neutro absorption capacity.UrbanMines specializes in producing high purity Boron Powder with the smallest possible average grain sizes. Our standard powder particle sizes average in the range of – 300 mesh, 1 microns and 50~80nm. We can also provide many materials in the nanoscale range. Other shapes are available by request.

Boron Carbide (B4C), also known as black diamond, with a Vickers hardness of >30 GPa, is the third hardest material after diamond and cubic boron nitride. Boron carbide has high cross section for absorption of neutrons (i.e. good shielding properties against neutrons), stability to ionizing radiation and most chemicals. It is a suitable material for many high performance applications due to its attractive combination of properties. Its outstanding hardness makes it a suitable abrasive powder for lapping, polishing and water jet cutting of metals and ceramics. Boron Carbide is an essential material with lightweight and great mechanical strength. UrbanMines’ products have high purity and competitive prices. We also has much experience in supplying a range of B4C products. Hope we can offer helpful advice and give you a better understanding of boron carbide and its various uses.

Cesium Carbonate is a powerful inorganic base widely used in organic synthesis. It is a potential chemo selective catalyst for the reduction of aldehydes and ketones to alcohols.

 Hexaamminecobalt(III) Chloride is a cobalt coordination entity consisting of a hexaamminecobalt(III) cation in association with three chloride anions as counterions.  

Colloidal Antimony Pentoxide is made through a simple method based on reflux oxidization system. UrbanMines has detailedly investigated about the effects of experimental parameters on the colloid stability and size distribution of the final products are carried out. We specialize in offering colloidal antimony pentoxide in a wide range of grades developed for specific applications. The particle size ranges from 0.01-0.03nm up to 5nm.

Sodium Antimonate (NaSbO3) is a kind of inorganic salt, and also called sodium metaantimonate. White powder with granular and equiaxed crystals. High temperature resistance, still does not decompose at 1000 ℃. Insoluble in cold water, hydrolyzed in hot water to form colloid.

Sodium Pyroantimonate is an inorganic salt compound of antimony, which is produced from antimony products such as antimony oxide through alkali and hydrogen peroxide. There are granular crystal and equiaxed crystal. It has good chemical stability.

Niobium Powder (CAS No. 7440-03-1) is light grey with a high melting point and anti-corrosion. It takes on a bluish tint when exposed to air at room temperatures for extended periods. Niobium is a rare, soft, malleable, ductile, gray-white metal. It has a body-centered cubic crystalline structure and in its physical and chemical properties it resembles tantalum. The metal’s oxidation in air commences at 200°C. Niobium, when used in alloying, improves strength. Its superconductive properties are enhanced when combined with zirconium. Niobium micron powder finds itself in various applications such as electronics, alloy-making, and medical due to its desirable chemical, electrical, and mechanical properties.

Niobium Oxide, sometimes called columbium oxide, at UrbanMines refer to Niobium Pentoxide (niobium(V) oxide), Nb2O5. Natural niobium oxide is sometimes known as niobia.

UrbanMines produce and process pyrite products by flotation of primary ore, which is high quality ore crystal with high purity and very little impurity content. In addition, we mill the high quality pyrite ore into powder or other required size, so as to guarantee the purity of sulphur, few harmful impurity, demanded particle size and dryness.Pyrite Products are widely used as resulfurization for free cutting steel smelting and casting furnace charge, grinding wheel abrasive filler, soil conditioner, heavy metal waste water treatment absorbent, cored wires filling material, lithium battery cathode material and other industries. Ratification and favourable comment having got users globally.

Indium Tin Oxide (ITO) is a ternary composition of indium, tin and oxygen in varying proportions. Tin Oxide is a solid solution of Indium(III) Oxide (In2O3) and Tin Dioxide (SnO2) with unique properties as a transparent semiconductor material.

Cesium Tungsten Bronzes(Cs0.32WO3) is a near-infrared absorbing nano material with uniform particles and good dispersion. Cs0.32WO3 has excellent near-infrared shielding performance and high visible light transmittance. It has strong absorption in the near-infrared region (wavelength 800-1200nm) and high transmittance in the visible light region (wavelength 380-780nm). We have the successful synthesis of highly crystalline and high purity Cs0.32WO3 nanoparticles through a spray pyrolysis route. Using sodium tungstate and cesium carbonate as raw materials, cesium tungsten bronze (CsxWO3) powders were synthesized by low temperature hydrothermal reaction with citric acid as the reducing agent.

Cerium Oxide, also known as Cerium(IV) Oxide or Cerium Dioxide, is an oxide of the rare-earth metal cerium. It is a pale yellow-white powder with the chemical formula CeO2. It is an important commercial product and an intermediate in the purification of the element from the ores. The distinctive property of this material is its reversible conversion to a non-stoichiometric oxide.

Cerium(III) Carbonate Ce2(CO3)3, is the salt formed by cerium(III) cations and carbonate anions. It is a water insoluble Cerium source that can easily be converted to other Cerium compounds, such as the oxide by heating (calcination).Carbonate compounds also give off carbon dioxide when treated with dilute acids.

Cerium(III) Oxalate (Cerous Oxalate) is the inorganic cerium salt of oxalic acid, which is highly insoluble in water and converts to the oxide when heated (calcined). It is a white crystalline solid with the chemical formula of Ce2(C2O4)3. It could be obtained by the reaction of oxalic acid with cerium(III) chloride.

Lanthanum Hydroxide is a highly water insoluble crystalline Lanthanum source, which can be obtained by adding an alkali such as ammonia to aqueous solutions of lanthanum salts such as lanthanum nitrate. This produces a gel-like precipitate that can then be dried in air. Lanthanum hydroxide does not react much with alkaline substances, however is slightly soluble in acidic solution. It is used compatibly with higher (basic) pH environments.

Lanthanum Carbonate is a salt formed by lanthanum(III) cations and carbonate anions with the chemical formula La2(CO3)3. Lanthanum carbonate is used as a starting material in lanthanum chemistry, particularly in forming mixed oxides.

Lanthanum Hexaboride (LaB6, also called Lanthanum Boride and LaB) is an inorganic chemical, a boride of lanthanum. As refractory ceramic material that has a melting point of 2210 °C, Lanthanum Boride is highly insoluble in water and hydrochloric acid, and converts to the oxide when heated (calcined). Stoichiometric samples are colored intense purple-violet, while boron-rich ones (above LaB6.07) are blue. Lanthanum Hexaboride (LaB6) is known for its hardness, mechanical strength, thermionic emission, and strong plasmonic properties. Recently, a new moderate-temperature synthetic technique was developed to directly synthesize LaB6 nanoparticles.

Neodymium(III) Oxide or neodymium sesquioxide is the chemical compound composed of neodymium and oxygen with the formula Nd2O3. It is soluble in acid and insoluble in water. It forms very light grayish-blue hexagonal crystals.The rare-earth mixture didymium, previously believed to be an element, partially consists of neodymium(III) oxide. Neodymium Oxide is a highly insoluble thermally stable neodymium source suitable for glass, optic and ceramic applications. Primary applications include lasers, glass coloring and tinting, and dielectrics.Neodymium Oxide is also available in pellets, pieces, sputtering targets, tablets, and nanopowder.

Boron has two stable natural isotopes: ¹⁰B and ¹¹B. They are chemically identical, with essentially the same valence, chemical reactivity, coordination ability, bonding characteristics, and chemical behavior in all types of compounds, making them indistinguishable under ordinary chemical conditions. They differ significantly only in atomic mass, nuclear physical properties, and minor thermodynamic physical parameters due to the different number of neutrons in their nuclei. ¹⁰B has a smaller atomic mass, an extremely high thermal neutron absorption cross‑section, and strong neutron capture capability. Its activation products after nuclear reaction are minimal, with no long‑lived radioactive residues. Observable isotopic effects exist compared with ¹¹B in minor thermodynamic properties such as vapor pressure and diffusion rate. ¹¹B has a larger atomic mass and an extremely low thermal neutron absorption cross‑section, making it nearly neutron‑transparent. It exhibits very low activation in radiation environments and excellent irradiation resistance. It is also more nuclear‑inert, with less performance degradation of its physicochemical structure under intense neutron irradiation. Except for isotopic mass and nuclear physical characteristics, its other macroscopic physical and chemical properties are highly consistent with those of ¹⁰B.

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