Supply stannic oxide (SnO2) for sell
Stannic oxide SnO2 is also an excellent transparent conductive material. It is the first transparent conductive material to be put into commercial use. In order to improve its conductivity and stability, it is often used for doping, such as SnO2:Sb, SnO2:F, etc. Both SnO2 and its doping have a tetragonal rutile structure. Red is O, black is Sn, and SnO2 is composed of two Sn and four O atoms. The lattice constant is a=b=0.4737nm, c=0.3186nm. , c / a = 0.637. O2-=0.140 nm, Sn4+=0.071 nm.
SnO2 is an n-type wide bandgap semiconductor with a forbidden band width of 3.5-4.0 eV, a visible light and infrared transmittance of 80%, a plasma edge of 3.2 μm, a refractive index of >2, and an extinction coefficient of 0. SnO2 has strong adhesion. It has a bonding force of up to 20 MPa with glass and ceramics, a hardness of 7-8, and good chemical stability. It can withstand chemical etching. SnO2 acts as a conductive film, and its carriers mainly come from crystal defects, that is, electrons provided by O vacancies and doping impurities.
Stannic oxide is commonly used in enamel and electromagnetic materials, and is used in the manufacture of opal glass, tin salts, porcelain colorants, fabric mordants and weighting agents, polishing agents for steel and glass, etc.
Stannic oxide electrodes are widely used in the smelting of high-grade optical glass and in the electrolytic aluminum industry. The tin oxide level is especially suitable for the melting of flint-type glass, flint, enamel, and heavy bismuth glass, and does not cause pollution to the glass. This achievement has passed the expert appraisal organized by the Science and Technology Department of Henan Province. The overall performance index is at the leading level in China, and the main indicators of tin oxide level have reached the international advanced level.
Gerhold Chemetals Co., Ltd supply the stannic oxide (SnO2) for sale, your can view the stannic oxide(SnO2) information by www.metal-powder-dust.com
Ultrafine amorphous boron powder for sell
Boron has the largest volumetric heat, and its weight is second only to helium. Slightly soluble in nitric acid, insoluble in water. Mr10.81. ρ = 2.37 g/cm 3 (amorphous); 2.34 to 2.46 g/cm 3 (crystal). The melting point is 2177 to 2301 ° C; the boiling point is 2550 to 2658 ° C.
The boron is a black or dark brown powder which, when oxidized in air, prevents the internal boron from continuing to oxidize due to the formation of the boron trioxide film. It reacts with fluorine at normal temperature and is not corroded by aqueous hydrochloric acid and hydrofluoric acid solutions. Ultrafine amorphous boron powder is insoluble in water, and powdered boron is soluble in boiling nitric acid and sulfuric acid, as well as most molten metals such as copper, iron, manganese, aluminum and calcium.
Ultrafine amorphous boron powder is chemically active. Powder and air can form an explosive mixture. Used in solid stamping engines and smokeless clean propellants.
Micron size platinum powder for sell
A platinum powder of micron size with a spherical shape and a polygonal shape. The solid density is 1.0 to 4.0 g/cm3. The average particle size is 1.1 to 1.7 μm. The specific surface area is 5 to 15 m 2 /g. Dissolve sponge platinum with aqua regia to obtain chloroplatinic acid solution, adjust acidity, add dispersant, heat stir, add reducing agent (hydrazine hydrate, etc.), let stand cooling, wash and dry to obtain average particle size 0.5μm Fine platinum powder.
Micron size platinum powder used for making single or multi-layer hybrid integrated circuits with high reliability and high resolution.
Gerhold Chemetals Co., Ltd supply the micron size platinum powder for sale, your can view the Micron size platinum powder suppliers and nano materials manufacturer information by www.metal-powder-dust.com
Supply Erbium oxide with factory price
Physical and chemical properties of Erbium oxide: molecular weight 382, Er2O3 pink powder, density 8.64, melting point 2378 °C. The boiling point of 3000 ° C. Do not dissolve in water, soluble in acid.
Physical and chemical indicators of Erbium oxide(%):
Er2O3 Er2O3 Er2O3
2.5N 3.0N 3.5N
TREO 39.50 39.50 40.00
Er2O3/TREO 99.50 99.90 99.95
Fe2O3 0.002 0.001 0.0005
SiO2 0.005 0.003 0.0001
CaO 0.010 0.005 0.002
SO42- 0.050 0.030 0.010
Cl- 0.050 0.030 0.010
Na2O 0.005 0.005 0.002
PbO 0.005 0.002 0.001
Application of Erbium oxide:
(1) In a telecommunications network that needs to amplify optical signals with a wavelength of 1550 nm, erbium-doped fiber amplifiers are indispensable optical devices. Currently, erbium-doped silica fiber amplifiers have been commercialized, and the rapid development of optical fiber communication will open up The new field of application.
(2) The erbium-doped laser crystal and its output of 1730nm laser and 1550nm laser are safe for human eyes, good atmospheric transmission performance, strong penetrating ability to the battlefield, good confidentiality, not easy to be detected by the enemy, illuminating the military The target has a large contrast ratio and has been made into a military-friendly portable laser range finder for human eyes.
(3) Er3+ can be made into rare earth glass laser material by adding it to glass. It is the solid laser material with the highest output pulse energy and the highest output power.
(4) Er3+ can also be used as an activated ion for rare earth up-conversion laser materials.
(5) The enamel can also be applied to the discoloration and coloration of spectacle glass and crystallized glass.
Gerhold Chemetals Co., Ltd supply the Erbium oxide for sale, your can view the Erbium oxide manufacturer information by www.metal-powder-dust.com
Carbonyl Iron INN powder manufacturer
The Carbonyl Iron INN powder is obtained by reacting CO with iron under high temperature and high pressure to form a 5 carbonyl iron oil, which is obtained by low pressure separation. It can be shipped after annealing and anti-oxidation treatment. When the temperature is 200 °C.
The Carbonyl Iron INN powderhas very high requirements on the process. When the decomposition of 5 carbonyl iron is 3 degrees, the gas flow rate is increased by 5%, which can significantly change the particle size and carbon content of the carbonyl iron powder.
The Carbonyl Iron INN powder is very active, and after a normal period of time, automatic agglomeration occurs due to an increase in entropy. The iron powder particle size of the agglomeration increases, and the particles are sticky, which has a relatively large impact on injection molding applications. The best quality carbonyl iron powder on the market is produced by BASF, Germany.
When the Carbonyl Iron INN powder is reduced with H2 gas for 1 hour, the iron content will increase to about 99.0%, and the content of other elements will also be significantly reduced. This reduced carbonyl iron powder has a slightly lower hardness and is also called a soft powder.
Gerhold Chemetals Co., Ltd supply the Carbonyl Iron INN powder for sale, your can view the Carbonyl Iron INN powder suppliers and Carbonyl Iron INN powder manufacturer information by www.metal-powder-dust.com
Supply the Albite powder for sell
The basic structural unit of feldspar is a tetrahedron, which consists of four oxygen atoms surrounding a silicon atom or an aluminum atom. Each such tetrahedron shares an oxygen atom with another tetrahedron to form a three-dimensional skeleton. Large radius alkali or alkaline earth metal cations are located in large voids within the framework with coordination numbers of 8 (in monoclinic feldspar) or 9 (in triclinic feldspar).
Albite powder, a triclinic glassy crystal, generally colorless, white, yellow, red or black, is a type of feldspar. Albite powder is a framework silicate structure with a specific gravity of 2.62 and a Mohs hardness of 6 - 6.5, of which the content of anorthite is less than 10%. Albite is a sodium mineral of the plagioclase solid solution series, most common in pegmatites and granites.
Albite powder is a kind of feldspar, a common feldspar mineral, and a sodium aluminosilicate. Albite powder is generally a glassy crystal, colorless or white, yellow, red, green or black.
Gerhold Chemetals Co., Ltd supply the Albite powder for sale, your can view the Albite powder suppliers and Albite powder manufacturer information by www.metal-powder-dust.com
Nd2O3 neodymium oxide for sell
Nd2O3 neodymium oxide is mainly used as a coloring agent for glass and ceramics, a raw material for metal ruthenium and a raw material for ferromagnetic NdFeB. Here with the detailed description of Nd2O3 neodymium oxide;
Project high purity 3N level: 3N
Cas number:1313-97-9
Molecular formula: Nd2O3
Molecular weight: 336.47
Density: 7.24
Melting point: 2211 °C Project high purity 4N grade
Rare earth purity: ..........................≥99.99%
Rare earth impurities: ..........................≤100ppm
La2O3...............................<10ppm;
CeO2................................<10ppm;
Pr6O11..............................<20ppm;
Sm2O3...............................<10ppm;
Eu2O3...............................<10ppm;
Gd2O3...............................<5ppm;
Tb4O7...............................<2ppm;
Dy2O3...............................<2ppm;
Ho2O3...............................<2ppm;
Er2O3...............................<2ppm;
Tm2O3...............................<2ppm;
Yb2O3...............................<2ppm;
Lu2O3...............................<2ppm;
Y2O3................................<5ppm
Total amount of rare earth: ..........................>99%;
Non-rare earth impurities:
Fe2O3...............................<3ppm;
SiO2................................<20ppm;
CaO.................................<10ppm;
Cl-.................................<150ppm
Burning reduction: ..........................<1%
