Metallurgy

Selenium powder is an inorganic elemental substance with the chemical formula Se. It is a dark red to black amorphous powder that is insoluble in water, hydrochloric acid, and dilute sulfuric acid, but soluble in nitric acid, carbon disulfide, benzene and quinoline.  

Lithium cobalt oxide, with the chemical formula of LiCoO2, is an inorganic compound.Its appearance is gray black powder. It is a strong oxidant in acidic solution, which can oxidize CI - to Cl2 and Mn2 + to MnO4 -. The redox potential in acidic solution is weaker than that of ferrate, but much higher than that of permanganate.Generally used for lithium ion two battery cathode material, liquid phase synthesis process, it uses polyvinyl alcohol (pVA) or polyethylene glycol (pEG) aqueous solution as solvent, lithium salt and cobalt salt are dissolved in pVA or pEG aqueous solution respectively. After mixing, the solution is heated to form gel, then the gel is decomposed and then calcined at high temperature.   

Cobalt Metal, steel gray metal, chemically stable at room temperature, will oxidize to form CoO when heated above 300 ℃ in air, and burn to form Co3O4 when white hot. The melting point is 1495 ℃, the boiling point is 2870 ℃, and the hardness is high. Stellite alloy containing over 50% cobalt still maintains its hardness at 1000 ℃.  ‌  

Cobalt Tetroxide is an inorganic compound with the chemical formula Co3O4,Black or grayish black powder. The apparent density is 0.5-1.5g/cm3, and the tap density is 2.0-3.0g/cm3. Cobalt Tetroxide can be slowly dissolved in hot sulfuric acid, but it is insoluble in water, nitric acid and hydrochloric acid at room temperature. When heated above 1200 ℃, it will decompose into cobaltous oxide. When it is strongly heated to 900℃ in a hydrogen flame, it is reduced to metal cobalt.  

Arsenic metal(As), with a silver gray or gray white metallic luster crystal or block solid appearance, some forms are brittle crystals, and the crystal structure is divided into yellow arsenic (cubic crystal system), gray arsenic (rhombohedral crystal system), black arsenic (amorphous), etc. depending on the form. Among them, gray arsenic is the most stable and common form, with a density of about 5.727g/cm ³, a melting point of 817 ℃ (under 2.8MPa pressure), a boiling point of 613 ℃ (sublimation), and relatively stable chemical properties at room temperature. It is not easy to oxidize in air and burns to produce arsenic trioxide when heated to 400 ℃. It is easily soluble in strong oxidizing acids such as nitric acid and aqua regia, and difficult to dissolve in water, hydrochloric acid, and dilute sulfuric acid, exhibiting special chemical activity.  

Arsenic trioxide is a trivalent oxide of arsenic, with the chemical formula As2O3, also known as arsenite oxide, commonly known as arsenic, white arsenic, etc. Arsenic trioxide is a odorless and tasteless white powder, which is highly toxic. It has three forms: monoclinic, cubic, and amorphous, with slightly different melting and boiling points depending on the crystal form.  

Tellurium dioxide is an inorganic compound with the chemical formula TeO2. The appearance is white powder. White crystalline body. Tetrahedral structure, yellow color upon heating, dark yellow red color upon melting, slightly soluble in water, soluble in strong acids and bases, and forms double salts.  

Gallium is a gray blue or silver white metal with the element symbol Ga and an atomic weight of 69.723. Gallium has a low melting point but a high boiling point. Pure liquid gallium has a significant tendency towards supercooling and is prone to oxidation in air, forming an oxide film.  

Dendritic vanadium granules have a unique dendritic structure and are mainly used in fields such as alloy addition, melting, and preparation of special materials.  

Bismuth ingot (Bi) is a rare metal material that combines low toxicity, stability, and special physical properties. The surface of the product is smooth and clean after processing, with a crystal structure of trigonal crystal system. The texture is brittle but not hard, easy to process and cut, and has stable chemical properties at room temperature. It is not easily oxidized in air and is only soluble in strong oxidizing acids such as nitric acid and concentrated sulfuric acid. It is insoluble in water and dilute hydrochloric acid, and has good thermal and electrical conductivity.  

Ge content ≥ 99.999%, resistivity ≥ 50Ω • cm (20 ± 0.5 ℃). Silver gray metallic luster, cuboid bar shape, hard and brittle,melting point of 937.4 ℃, boiling point of 2800 ℃, density of 5.325g/cm3.Each ingot is about 100 ~ 500mm long, sealed in a polyethylene film bag, then packed in a polystyrene box, packed in an outer wooden box, and the net weight of each box is about 25kg.  

Magnesium ingot is a block shaped industrial raw material made of magnesium metal, usually produced by reduction process, with high purity, low hardness, good ductility, and excellent thermoelectric conductivity.  

Ruthenium powder has high density, hardness, wear resistance, strong chemical stability, and can withstand acid and alkali corrosion (except aqua regia). Its conductivity and stability enable it to maintain stable performance even in high temperatures and harsh environments.  

Rhenium powder is pure rhenium metal powder, usually dark gray, sometimes also known as sponge rhenium. The molecular formula of rhenium powder is Re, and the apparent density is related to the particle size, about 6-9g/cm³. Vacuum packing of plastic bags, net weight of 1.0Kg each bag, outer iron drum packing, net weight of 25Kg per barrel.  

Osmium is a slightly bluish silver white metal at room temperature, with a density of 22.57g/cm ³, a melting point of 3045 ℃, and a boiling point of 5012 ℃; Osmium is the densest metal, with a hard and brittle texture, no plasticity, and cannot withstand mechanical processing. Wear resistant and corrosion-resistant.  

Our Various sizes Calcium Carbide 15~25/25~50/50~80mm is a kind of inorganic substance, chemical formula is CaC2, calcium carbide is the main component, white crystal, industrial products are gray black block, cross-section is purple or gray. It reacts violently with water, forming acetylene and releasing heat.