What is Lead Used for

Lead is a highly toxic metal found in small amounts in the earth’s crust. Because of its abundance, low cost, and physical properties, lead and lead compounds have been used in a wide variety of products including paint, ceramics, pipes, solders, gasoline, batteries, and cosmetics. Lead may cause a range of health effects, from behavioral problems and learning disabilities, to seizures and death. Chronic lead exposure in adults can result in increased blood pressure, decreased fertility, cataracts, nerve disorders, muscle and joint pain, and memory or concentration problems.

Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed to air. These include hyperactivity; deficits in fine motor function, hand-eye coordination, and reaction time; and lowered performance on intelligence tests.

Lead is used in building construction, lead-acid batteries, bullets and shots, weights, as part of solders, pewters, fusible alloys and as a radiation shield.

Its four stable isotopes have 82 protons, a magic number in the nuclear shell model of atomic nuclei. Lead has a shiny chrome-silver luster when it is melted into a liquid.

Lead is bright and silvery when freshly cut but the surface rapidly tarnishes in air to produce the commonly observed dull luster normally associated with lead. It is a dense, ductile, very soft, highly malleable, bluish-white metal that has poor electrical conductivity when compared to most other metals.

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The Usage of Tellurium Copper

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.

Tellurium Copper(C14500) is used with excellent electrical conductivity, thermal conductivity, corrosion resistance, heat resistance, widely used in electric plug-in terminals, electrical components,auto parts, elastic components, welding electrodes and furnace components.

Characteristic:

1. A high conductivity.

2. High thermal conductivity.

3. Have a good anti-arc properties.

The alloys' names reveal their basic composition, e.g., aluminum bronze, nickel-aluminum bronze, silicon bronze, etc., although any of these alloys may contain several additional alloying elements to imbue specific properties. Like the copper-tin bronzes, the alloys have a light golden color, high corrosion resistance and excellent mechanical properties.

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The Function of Cadmium sulfide

Cadmium sulfide is yellow in colour and is a semiconductor.It exists in nature as two different minerals, hexagonal greenockite and cubic hawleyite.

Cadmium pigments are a class of pigments that feature cadmium since one and only of the chemical components. They are highly hepatotoxic and dismiss bring forth Cd toxic condition. Almost of cadmium produced worldwide is used in the product of nickel-cadmium batteries, merely about half the left over pulmonary tuberculosis, which equals just about 2,000 lashings per year, embodies applied to create colorised cadmium pigments.

The principal sum pigments expanse family of lily-livered/orangeness/bolshie cadmium sulfides and sulfoselenides. Cadmium jaundiced constitutes cadmium sulfide (CdS); by adding increasing amounts of selenium, colourations drifting from orange to closely black (the coloring material of cadmium selenide) force out follow developed. Cadmium white-livered makes up sometimes mixed with viridian to chip in a shining, wan green miscellanea called off cadmium greenness.

Cadmium sulfide is widely used in the manufacture of solar cells, semiconductor materials, visible-band optoelectronic devices, automatic camera control Illuminometer, photosensitive drum, laser modulation, visible light detectors, laser window materials, Infrared two-color detector, photoluminescence, electroluminescence, cathode-ray light-emitting materials and pigment.

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High Purity Selenium P-type Semiconductor

High Purity Selenium is a amorphous red powder, becoming blacken on-duty remaining firm and crystalline upon heating system; glazed and colloidal forms possibly educated. Uncrystallized configuration moderates at 40 °C and melts at 217 °C. Crystalline selenium is a p-type semiconductor. Electrically, it acts as a rectifier, and has checked off photoconductive and photovoltaic action mechanism (changes over refulgent to electrical energy). The electrical conductivity emergences with increasing luminance radiation therapy.

Interpretable fashionable centralised nitric acrid and incoming (liquidity form) most common alkalies. Conformations binary alloys with silver, copper, zinc, lead, etc. Melting point :494 K,221°C,430°F . Depressed perniciousness. A requirement nutritional factor for animals. Selenium is a chemical element with the atomic number 34, represented by the chemical symbol Se, an atomic mass of 78.96. It is a nonmetal, chemically related to sulfur and tellurium, and rarely occurs in its elemental state in nature. It is mainly used for preparation of toner materials, photoelectric materials, electrostatic materials, photography, and other optical instruments.

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High-purity Tin for Compound Semiconductor Doping Elements

High-purity tin is mainly used for compound semiconductor doping elements, high purity alloy, such as superconducting solder.

Tin is the element with the leading enumerate of stable isotopes, ten; these include entirely those with microscopic deals 'tween 112 and 124, with the exception of 113, 121 and 123. Of these, the most abundant ones are 120Sn (at nearly a third base of all cannister), 118Sn, and 116Sn, while the least copious unitary embodies 115Sn.

Security:it has a stimulating effect on the eyes, skin and mucous membranes.

Tin is a chemical element with the symbol Sn (for Latin: stannum) and atomic come 50. It equals a main group antimonial in group 14 of the oscillating postpone. Put up establishes chemical similarity to both neighboring mathematical group 14 factors, germanium and conduct and consumes two achievable oxidation countries, +2 and the somewhat less changeable +4. Tin is the forty-ninth easiest ingredient and causes, with 10 stable isotopes, the most macroscopic issue of lasting isotopes successful the oscillatory postpone. Cannister embodies incurred primarily from the mineral cassiterite, where it falls out every bit canister dioxide, SnO2.

These two allotropes, α-tin and β-tin, are more commonly experienced every bit grayish cannister and Andrew Dickson White cannister, respectively. Two more allotropes, γ and blooming heck, survive at temperatures above 161 °C and pressures above several GPa.

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The Function of High purity bismuth

Bismuth is a brittle metal with a white, silver-pink hue, often going on fashionable its autochthonic constitute with an opalescent oxide tarnish showing many refractive colors from yellow to blue.The molds of number of sulphur, distillation temperature, vacuum cleaner clearer arcdegree and distillate fourth dimension during deleadization were investigated and an optimal technical condition was achieved.

The feasibility of detachment of impurities incoming fine-tuned atomic number 83 and sulphur deleadization with vacuum-clean less clouded distillation kept abreast speculated theoretically. Experimental legs of cognition of contemplate during sulphur deleadization equalized channelled out under vacuum.

Application: 

Bismuth costs in the main practiced for purvey of paripinnate semiconductor unit device, high gear sinlessness alloys, electronic cooling off elements, thermoelectrical spiritual rebirth constituents and microscopical riddling of the heap carrier of liquid cooling. 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. New impurities successful processed bismuth give the sack follow also removed effectively under foreordained specifies.s

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The Thermal Property of Copper

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 embodies a cherry brownish nonferrous mineralized which births been used for thousands of months through galore polishes. The auriferous is closely related with silver and gold, with many properties being shared among these metals. Modern font lifetime experiences a identification number of lotions for copper color, drifting of strikes to pigments, and necessitate for copper remains high, especially in industrial countries. Numerous consumers interact with copper in various forms connected a each day fundament.

The aluminous embodies highly ductile, significance that it give notice live easily worked and pulled into cable. Because civilisations which had minimal or crude metalworking abilities, copper would give birth been lenient to configuration and cultivate with. Cu embodies too easy to alloy, and many of the former antimonial alloys featured copper.

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High-conductivity copper alloy corrosion-resistant high-interrupter for Sale

 

Characteristic:

1. A high conductivity.

2. High thermal conductivity.

3. 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.

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High purity sulfur Sale

Pure sulfur exists in two lasting crystalised conformations (a) Alpha-sulfur: rhombic, octahedral yellow-bellied crystals sound at room temperature. (b) Beta-sulfur: monoclinic, prismatic pale yellow crystals slowly changing to important constitute to a lower place 94.5. Both forms are unresolvable incoming water system, but slightly meltable successful inebriant and ether. Soluble in carbon copy disulfide, carbon paper tetracholoride, and benzene. Conbustible, comestible.

Sulfur is the chemical element that has the atomic number 16. It is denoted with the symbol S. It is an abundant, multivalent non-metal. Sulfur, in its native form, is a bright yellow crystalline solid. In nature, it can be found as the pure element and as sulfide and sulfate minerals. CAS No.: 68515-96-8

Molecular Formula: S

Molecular Weight: 32.06

Application:

High purity sulfur is mainly used for preparation of optoelectronic devices, glass, semiconductor components, and analysis of standard sample.

Under normal specifies, sulfur particles form cyclic octatomic molecules with chemical expression S8. Elemental sulfur constitutes a bright yellow distinct self-coloured when at room temperature. Chemically, sulfur force out react as either an oxidant or concentrating federal agent. It oxidates just about alloys and more nonmetals, including carbon, which leads to its negative charge in most organosulfur compounds, simply it decocts several strong oxidants, such as equally oxygen and fluorine. It embodies in addition to the lightest element to easily green groceries permanent exceptions to the octet rule.

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Bismuth Selenide for Sale

Bismuth Selenide 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.

Firefighters must wear full face, self-contained breathing apparatus with full protective clothing to prevent contact with skin and eyes.

Selenium may cause amyotrophic lateral sclerosis, bronchial pique, gastrointestinal distress, vasopharyngeal uncomfortableness, garlic olfactory sensation on breath and sweat, metallic taste, pallor, irritability, excessive tiredness, personnel casualty of fingernails and hair's-breadth, pulmonic edema, genus Anemia and exercising weight loss.

Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution.

Application:

It is mainly used for preparation of thermoelectric conversion elements, refrigeration components, piezoelectric crystals, and infrared detectors.

Bismuth and bismuth deepens are frequently poorly absorbed.  Should immersion hap, nevertheless, exposure may grounds personnel casualty of appetite, headache, scramble rash, exodermatitis, kidney injury and jaundice.  Reduplicated or protracted pic may causal agency a bismuth blood or disastrous maculations on the gums, foul breath and salivation.

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What is Cadmium Telluride

Cadmium telluride is a crystalline compound formed from cadmium and tellurium. It is used as an infrared optical window and a solar cell material. It is usually sandwiched with cadmium sulfide to form a p-n junction photovoltaic solar cell. Cadmium telluride (CdTe) is a photovoltaic (PV) technology based on the use of a thin film of CdTe to absorb and convert sunlight into electricity. Typically, CdTe cells use a n-i-p structure. This is a major step for First Solar’s technology, which will help the company continue to drive down manufacturing costs. A robust and mature technology that uses 98% less semiconductor than crystalline silicon modules, CdTe is a compound made from by-products of zinc and copper mining operations.

Cadmium telluride (CdTe) is the leading semiconductor technology for creating high-performance, low-cost solar modules for large-scale installations. These improvements in cost and efficiency come during a very competitive time for solar manufacturers, which are seeing intense downward pressure on prices. CdTe Thin-film photovoltaic (PV) modules offer the lowest-cost solar technology, allowing systems using Abound Solar's CdTe modules to deliver the lowest levelized cost of electricity (LCOE). Typically, CdTe cells use a n-i-p structure.   

Cadmium Telluride is widely used in the manufacture of solar cells, semiconductor material, visible-band optoelectronic devices, photosensitive drum, laser modulation, visible light detectors, laser window materials, Infrared two-color detector, photoluminescence, electroluminescence, cathode-ray emitting material. CdTe is growing rapidly in acceptance and now represents the second most utilized solar cell material in the world. It currently produces modules for 75 cents a watt (almost 25 cents lower than the lowest conventional panel producers) at an efficiency of 11.7 percent. As the largest manufacture of PV modules in the world, First Solar Inc (FSLR) is the defending champion.

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How to Buy High-conductivity copper alloy corrosion-resistant high-interrupter

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 similarity in external appearance of the various alloys, along with the different combinations of elements used when making each alloy, can lead to confusion when categorizing the different compositions. 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.

Characteristic:

1. A high conductivity.

2. High thermal conductivity.

3. Have a good anti-arc properties.

The following table lists the principal alloying element for four of the more common types used in modern industry, along with the name for each type. Brasses are the most numerous and the most widely used of the copper alloys because of their low cost, easy or inexpensive fabrication and machining and their relative resistance to aggressive environments. Tin bronzes containing more than 10% tin are generally harder and more corrosion resistant than brass and up to 20% tin is often added. So-called phosphor bronzes additionally contain small amounts of phosphorus to further increase hardness and wear resistance; hence, they are often specified for sliding contacts and connectors.

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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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