How to Buy High-purity tin

High-purity tin can form a protective layer of tin dioxide in the air. CAS No.: 7440-31-5. Tin oxide is a versatile material for ceramics. Molecular Formula: Sn. Its thermal stability and chemically inert nature enables the production of a wide palette of durable ceramic colours. In ceramic applications the physical characteristics and chemical purity of the tin oxide are of major importance.

Tin is a chemical element with the symbol Sn (for Latin: stannum) and atomic number 50. It is a main group metal in group 14 of the periodic table. Delivery Detail: With 10 days. Tin shows chemical similarity to both neighboring group 14 elements, germanium and lead and has two possible oxidation states, +2 and the slightly more stable +4. Tin is obtained chiefly from the mineral cassiterite, where it occurs as tin dioxide, SnO2.

High-purity tin is mainly used for compound semiconductor doping elements, high purity alloy, such as superconducting solder. Boiling point: 2507 ℃. It has a stimulating effect on the eyes, skin and mucous membranes. Melting point: 231.89 ℃. Packaging Detail: 10 kilograms per package in general..3 inner boxes/outer box We have developed a comprehensive range of high performance tin oxides to meet the demanding requirements of the ceramic industry. Tin is the 49th most abundant element and has, with 10 stable isotopes, the largest number of stable isotopes in the periodic table.

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What is Bismuth Used for

Bismuth is a brittle metal with a white, silver-pink hue, often occurring in its native form with an iridescent oxide tarnish showing many refractive colors from yellow to blue. Bismuth is a brittle metal with a white, silver-pink hue, often occurring in its native form with an iridescent oxide tarnish showing many colors from yellow to blue. The spiral stair stepped structure of a bismuth crystal is the result of a higher growth rate around the outside edges than on the inside edges. Though virtually unseen in nature, high-purity bismuth can form distinctive colorful hopper crystals. Bismuth is relatively nontoxic and has a low melting point just above 271 °C, so crystals may be grown using a household stove, although the resulting crystals will tend to be lower quality than lab-grown crystals.

Bismuth is the most naturally diamagnetic of all metals, and only mercury has a lower thermal conductivity. It is mainly used for preparation of compound semiconductor, high purity alloys, electronic cooling components, thermoelectric conversion elements and atomic screening of the heap carrier of liquid cooling.
These crystals, while not natural, are nonetheless very interesting to the mineral hobbyist and to others. As chemical element Bismuth was officially discovered in 1753 by French scientist Claude Geoffroy. The origin of the name comes from the German words Weisse Masse meaning white mass. However around 1400 the element name is already present in some scientific treaties. In fact before Geoffroy, also the Swiss scientist Theophrastus Bombastus von Hohenheim (1493 - 1541) probably better known under his latinized name of Paracelsus, mentioned the word “Bisemutum”. The unique look that these clusters offer is really indescribable. Its color consisits of iridescent metallic yellow, blue and green hues.
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What is High purity bismuth

High purity bismuth, brittle metal, with reddish tinge. Soluble in nitric and
hydrochloric acids. Highly diamagnetic (mass susceptibility -1.35 X 106). Expands 3.3%
on solidification. The content of lead in refined bismuth can be decreased from
30μg/g to 0.21μg/g, which has reached the level of “5N” high-purity bismuth. Other
impurities in refined bismuth can be also removed effectively under certain
conditions.
Electrical resistivity higher in solid than in liquid state. Extrudable at 437 oF, not
fabricable at room temperature. Brinell hardness 7. Thermal conductivity is lowest of
all metals except mercury. On heating it burns to form the oxide. Experimental studies
on sulphur deleadization were carried out under vacuum. The influences of amount of
sulphur, distillation temperature, vacuum degree and distillation time on
deleadization were investigated and an optimal technical condition was achieved.
Derivation: Debismuthizing of lead bullion by (a) fractional crystallization, (b)
electrolytic (Betts) refining, or (c) addition of calcium or magnesium (Betterton-
Kroll process) which removes bismuth. Hazard: Flammable in powder form.   

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How to Buy High purity tellurium

High purity tellurium is a chemical element that has the symbol Te and atomic number 52. A brittle, mildly toxic, silver-white metalloid which looks similar to tin, tellurium is chemically related to selenium and sulfur. Ellurium must be packed by anti-damp packing paper , placed into wooden box or galvanized iron bucket. Same grade tellurium should be put into the same box. The net weight of each box should not be more than 25kg. Imparts garlic-like odor to breath, can be depilatory. It is a p-type semiconductor and its conductivity is sensitive to light exposure.
Manufacturer of thin film & PVD materials. Products include sputtering targets, crucible inserts, e-beam gun replacement parts, ion implantor source replacement parts & backing plates. Te has two allotropes that are crystalline and amorphous .crystalline te has metal luster, silvery colour, fragile. Property.the amorphous te powder is dark grey, and it 3 has medium density ( 6.240g/cm ) , lower melting and boiling point ( 449.6℃ 989.9℃). Te is non-metallic element , but has good heat transfer and electric conductivity . Among all the non-metallic element, te has good metallic property.

Materials used include aluminum, aluminum alloys, barium, barium alloys, bismuth, bismuth alloys, boron, boron alloys, cadmium, cadmium alloys, calcium, calcium alloys, carbon, cerium, cerium alloys, cesium alloys, chromium & chromium alloys. Tellurium is widely used in metallurgical applications, and is primarily alloyed with iron, copper and lead. Tellurium is also used in cadmium telluride (CdTe) solar panels. Alloys of tellurium are also used to create semiconductor materials, as well as other electronic materials. It is mainly used for preparation of thermoelectric conversion elements, refrigeration components, piezoelectric crystals, and infrared detectors. Packed with Dacron film, and then covered with a plastic bag or vacuum sealed in a glass ampule.
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How to Get Tellurium Copper(C14500)

The C14500 tellurium copper, is the best material for cutting value in tin he high-copper alloy. Has the extremely good easy cutting value and the fine electric conduction, the heat conduction performance, as well as corrosion resistance performance; The copper telluride precipitations in the microstructure effects the cutting chips into short pieces, thus enabling a much higher machining speed than with pure copper. Moreover the cold hot-working performance is good, may forge, the casting, the extrusion drawing, to stamp out the mold pressing, coldly dui.
Tellurium Copper(C14500), Copper, Tellurium-Bearing. Free machining, 90-96% IACS. Welding and cutting torch tips, products requiring high conductivity and high machinability.
Mainly uses in: Requests to conduct the high electric conduction, the anti-corrosive precise electronic electric appliance part high, the high-quality mechanical and electrical components, the forging and the thread cutting, the hot-water heat fitting, the electrical contact elements, weld shear the high-quality gun mouth, the electric motor and the switch block and so on. It is also used in welding and cutting torch tips, products requiring high conductivity and high machinability.
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How to Buy High-conductivity copper alloy corrosion-resistant high-interrupter

High-conductivity copper alloy corrosion-resistant high-interrupter is a high conductivity. It also has other characteristics:
　1. High thermal conductivity.
　2. Have a good anti-arc properties.
Application:
High-conductivity copper alloys are widely used in high electrical conductivity, high thermal conductivity materials, and electrical fields, the yuan low-voltage electrical equipment, electricity, communications wire, electrical copper and so on. Copper alloys are metal alloys that have copper as their principal component. They have high resistance against corrosion. The best known traditional types are bronze, where tin is a significant addition, and brass, using zinc instead. Both these are imprecise terms, and today the term copper alloy tends to be substituted, especially by museums.

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How to Buy Cadmium Mining

Cadmium is a very soft, silvery-white metallic element. Its atomic number is 48 and its symbol is Cd. It is so soft that it can be cut with a knife. Cadmium has many chemical similarities to zinc, but is less reactive with acids than is zinc. Cadmium can be used to manufacture small size and large capacity battery. Cadmium sulfide, cadmium selenide, cadmium telluride photovoltaic cells used in the manufacture. There are several ways of cadmium from cadmium dust or residueto get the metal cadmium. Cadmium is generally recovered as a byproduct from zinc concentrates. Zinc-to-cadmium ratios in typical zinc ores range from 200:1 to 400:1. Sphalerite (ZnS), the most economically significant zinc mineral, commonly contains minor amounts of other elements; cadmium, which shares certain similar chemical properties with zinc, will often substitute for zinc in the sphalerite crystal lattice. The cadmium mineral, greenockite (CdS), is frequently associated with weathered sphalerites and wurtzites [(Zn, Fe)S], but usually at microscopic levels.
Cadmium telluride thin-film photovoltaics are an alternative to the traditional silicon-based solar cells and are a preferred photovoltaic technology for commercial rooftop applications and for large-scale, ground-mounted utility systems.
Cadmium is clearly toxic to animals, and during the past few decades has become familiar to the public mainly due to its undesirable presence in fertilizers and elsewhere, rather than for its positive industrial applications. Metallic cadmium is rarely used industrially in pure form. Cadmium is mainly used for steel, iron, copper, brass and other metal plating, corrosion of alkaline substances and strong. Cadmium compounds are also used extensively for production of pigments and phosphors.
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