Product description: 1.Material: magnesium oxide 2.Featrue:, high thermal shock resistance Packaging & shipping: 1.Packaging details: cartons with pallet 2.Delivery time: within 20 days Usage: Used for smelting and assaying , excluding gold and silver elements, more accurate test results, high temperature resistance and resistance to thermal shock ., Specific techincal data Production method:dry pressing Typical chemical analysis Mgo, 98.5% Al2o3, 1.2% Working temperature1300, ??-1350, ?? Specific gravity:2.35 Porosity:12%-15% Lead absorption91%
Product specifications: 1.Made of fire clay 2.Used for smelting & assaying 3.High density & quality Applications: Precious metal analysis Mining laboratory Laboratory testing Mineral assaying Fire assaying Gold assaying Features: Long lasting, can be used 3-5 times High mechanical strength designed to withstand severe thermal shocks Special formula, curing and pressing process Multi-use crucible Withstand extremely corrosive fire assay environments Packaging & shipping: Cartons with pallete, crates or as customer's requiements. Usage: Used for smelting and assaying , excluding gold and silver elements, more accurate test results, high temperature resistance and resistance to thermal shock . The average serial can be used for 3-5 times Specific technical data Production method:press forming Typical chemical analysis Sio269.84% Al2o328% Cao 0.14% Fe2o31.90% Working temperature1400??-1500?? Specific gravity:2.3 Porosity: 25%-26%
Specifications Fire assay fluxes according to customers' recipe, or our own specification. Gold free and silver free type are available The famous fire assay has been around for more than 500 years, but it still is the best method for determining the quantity of gold, platinium and other precious metals, thus widely used by gochemical assay laboratories. The fire assay process works by fusing or dissolving the rock sample in a crucible using a lead glass flux. Fluxes of various types are used on various types of ores. Most flux mixes may contain the following: Litharge, Sodium bicarbonate, Silica, Borax, Flour, Florite, Etc. Gemhold does custom manufacturing of lead monoxide(litharge) with qualified manufacturer in china, producing top grades of litharge from 99.5% - 99.9%min, which are widely used in fire assay, optical glass, piezo ceramic, and other industries. For fire assay industry, gemhold can produce assay grade litharge with very low gold and silver content, say, gold less than 1.5ppb, and silver less than 0.15ppm. Gemhold can produce assay fluxes according to customers' recipe, or from our own standard. Our ability to product high quality litharge enable us to produce idea fluxes needed in the low level assay works. Our quality control system and semi-automatic manufacturing processes make our fluxes fully reliable. We can assay each batch of our flux if customers require that, and coa be be provided before despatching
Ultrafine Products Product description: Superfine CuO Particles Electronic grade copper oxide Superfine copper (II) oxide powder; Active copper oxide; Submicron copper oxide powder; CAS 1317-38-0 Product Specification:0.2-1.0m Product Explanation: Molecular formula: CuO Molecular weight: 79.55 Appearance: Dark brown or black powder Product use: As continuously added copper source of PCB plating; as an important inorganic materials in area of semiconductor,catalysis, superconductivity, ceramics, and other fields; as catalysts and carrier also electrode active material; as coloring agent of glass and porcelain;as optical glass polishing agent; as organic synthesis catalyst, oil desulfurization agent, hydrogenation agent;for manufacture of artificial stones,copper oxides,and rayon;As for analysise gas and determine organic compounds also as burning rate catalyst of rocket propellant. Packing, storage and shipping: Aluminum foil packaging, each bag of 2kg, 10kg, or 20kg. Seal packaging. Store in a cool & dry place. Keep it away from reductant.
Color: yellow, brown, gray and black. The cleavage surface often shows pearls or submetallic luster. Phlogopite has higher insulation and resistance, lower electrolyte cost, arc and corona resistance and any other dielectric prosperities .As per the Physicochemical properties, perfect toughness, high mechanical strength, thermostability and acid&alkali-resistance. At present,It is widely used in radio industry, aircraft industry, production of electrical machinery, coating, painting, plastic,linoleum,paper making,drilling oil etc. Typical application: Phlogopite flake can be used for production of electrical machinery, insulant of electric furnace, Chaozao mica paper, mica sheet and fire-resistant mica tape. The expansion mica used for building.Producing insulated brick for kiln. In addition, it used for the material of drilling oil, the filler of plastic and the pad of rockets missile .
SEPPE Cenosphere is a lightweight, inert, hollow sphere filled with inert air or gas, typically produced as a byproduct of coal combustion at thermal power plants. The color of cenospheres varies from gray to almost white and their density is about 0.4-0.8 g/cm³, which gives them a great buoyancy. Flows like a liquid, with the appearance of a powder. Provides lightweight bulk to a varied and expansive range of compounds. Cenospheres are hard and rigid, light, waterproof, innoxious, and insulative. This makes them highly useful in a variety of products, notably fillers. Cenospheres are now used as fillers in cement to produce low-density concrete. Some manufacturers have begun filling metals and polymers with cenospheres to make lightweight composite materials with higher strength than other types of foam materials. Such composite materials are called syntactic foam. Aluminum-based syntactic foams are finding applications in the automotive sector. Silver-coated cenospheres are used in conductive coatings, tiles and fabrics. Another use is in conductive paints for antistatic coatings and electromagnetic shielding.
Expanded Perlite powder is a super light weight agricultural potting media that is clean and easy to use as well as environmentally friendly, offering many advantages allowing you to get the very best from your plants, nurturing them and helping them grow healthy and strong. The unique properties of perlite provides for excellent aeration and drainage while still ensuring good water retention.
.Melamine molding powder are based on melamine-formaldehyde resins fortified with high-class celluloseas reinforcement and further modified with minor amounts of special purpose additives, pigments, cure regulators and lubricants. Characteristics Non-toxic and tasteless,temperature tolerance of -30 degrees Celsius to 120 degrees Celsius,water resistance,resistance against,corrosion resistance,bright color.Our color department is able to mix any color you want in several days. Major Application Areas Widely used in melamine tableware,low-voltage electrical appliances and other combustion products.It is used to make dinnerware, fridge food box, insulation parts, electrical parts, aviation use cups and tableware. Packages : 20kg kraft bag melamine moulding compound powder and other fine chemical products. With more than 10-years experience making, the pursuit of perfect quality, and unprecedented prices, we make every effort to meet the best interests of our customers.
200 mesh - 5000 mesh talc powder
Tabular Alumina, with the purity, do not add any additives, and firing contraction completely finished sintered alumina, alumina powder as raw material, after fine grinding, molding, drying, for ultra high temperature furnace with the temperature below the melting point of corundum, quick heat cooling fast under the condition of burning, to form a number of closely with columnar crystal, with high purity,high melting point, grains high hardness, heat load of high strength, low shrinkage, high density and low permeability, good wear resistance, good thermal shock stability etc. Tabular Alumina Usage Specification Chemical composition Bulk Density gcm3 Apparent Porosity Al2O3 Na2O Fe2O3 SiO2 Refractory Size 0 1mm 1-3mm 3-5mm 5-8mm 99.0 0.35 0.2 0.2 3.5 5.0 Fine 200 0 325 0 98.5
