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Germanium

Germanium was discovered comparatively late because very few minerals contain it in high concentration. It ranks near fiftieth in relative abundance of the elements in the Earth's crust. In 1869, Dmitri Mendeleev predicted its existence and some of its properties based on its position on his periodic table and called the element eka-silicon. Nearly two decades later, in 1886, Clemens Winkler found it in the mineral argyrodite. It is an important semiconductor material used in transistors and various other electronic devices. Its major end uses are fiber-optic systems and infrared optics, but it is also used for polymerization catalysts, and in electronics and solar cell applications. It is finding a new use in nanowires. Germanium has gained popularity in recent years for its reputed ability to improve immune system function in cancer patients. It is available in the U.S. as a nonprescription dietary supplement in oral capsules or tablets, and has also been encountered as an injectable solution.

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Gold

Gold is the most malleable and ductile metal known. It has been a valuable and highly sought-after precious metal for coinage, jewelry, and other arts since long before the beginning of recorded history. Besides its widespread monetary and symbolic functions, gold has many practical uses in dentistry, electronics, and other fields. Some gold salts do have anti-inflammatory properties and are used as pharmaceuticals in the treatment of arthritis and other similar conditions. However, only salts and radioisotopes of gold are of pharmacological value, as elemental gold is inert to all chemicals it encounters inside the body. In modern times, injectable gold has been proven to help to reduce the pain and swelling of rheumatoid arthritis and tuberculosis. Its high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity lead to many uses of gold, including electric wiring, colored glass production and even gold leaf eating. Gold leaf, flake or dust is used on and in some gourmet foods, notably sweets and drinks as decorative ingredient.

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Gold Hydroxide Industrial Grade 99%

Gold hydroxide is a brown precious metal compound, which tend to decompose when heating. It is insoluble in water and dilute acid, however soluble in strong acid, strong alkali and sodium cyanide solution. Gold(III) hydroxide is amphoteric,which is not stable and tend to decompose to AuO(OH) when heating to 100℃, Au2O3 when heating to 140-150℃. Potassium chloroaurate or gold chloride is the raw material.

Gold Hydroxide

CAS No.:1303-52-2 EINECS No.:215-120-0 Molecular Formula:Au(OH)3 Molecular Weight:247.99
Au≥79%      

Applications

Gold trihydroxide is mainly for preparing gold oxide, gold plating and ceramic pigments.

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Gold Oxide Industrial Grade 99%

Gold oxide is black powder, which is a precious metal oxide. It is stablest gold oxides, which is insoluble in water, however soluble in hydrochloric acid, concentrated nitric acid and sodium cyanide solution. Gold(III) oxide is sensitive to light and decompose gradually, so the container is brown bottle under low temperature. Gold hydroxide is the raw material.

Gold Oxide

CAS No.:1303-58-8 EINECS No.:215-122-1 Molecular Formula: Au2O3 Molecular Weight:441.93
Melting Point:150℃ Density:3.6 UN 3263 8/PG 3 Au≥88%

Applications

Auric oxide is mainly for gold plating and pigment for ceramics.

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Gold Powder Industrial Grade 99.9%

Gold powder is a kind of common precious metal, which is ultra fine particles. There are two production methods for ultra gold metal powder, thermal decomposition method and water solution reduction. The first one gets average particle size at 1~2μm. The second one gets average particle size at 0.5μm.

Gold Powder

CAS No.: 7440-57-5 EINECS No.: 231-165-9 Molecular Formula: Au Molecular Weight: 196.97
Melting Point:1064.63℃ Boiling Point:2966℃ Density: 19.31  

Applications

Ultra fine Au powder is primary conducting material in excellent conductive paste as thin line gold paste, low temperature gold plasma, gold-palladium, gold-platinum-palladium and gold-silver-palladium.

Gold metal is as gilding material and raw material for gold wire in semiconductor industry.

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Hexaammineruthenium Chloride Industrial Grade 99%

Hexaammineruthenium chloride includes hexaammineruthenium(III) chloride and hexaammineruthenium(II) chloride. Hexaammineruthenium(III) chloride is white powder, however hexaammineruthenium(II) chloride is yellow crystal powder.

Hexaammineruthenium Chloride

CAS No.:14282-91-8 Molecular Formula:Ru(NH3)6Cl3 Molecular Weight:309.61 Ru Content:≥32.0%
CAS No.:15305-72-3 Molecular Formula:Ru(NH3)6Cl2 Molecular Weight:274.16 Ru Content:≥36.0%

 

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High Purity Metal Lead Industrial Grade 99.999%

High purity metal lead is bright silvery gray lump, piece or ingot.

High Purity Metal Lead

Purity: 99.999%, 99.9999%

CAS No.:7439-92-1 EINECS No.:231-099-0 Molecular Formula:Pb Molecular Weight:207.19
Density:11.343 Melting Point:327.46℃ Boiling Point:1740℃ Self-ignition Temperature:790℃

Applications

High purity metal lead is mainly for electronic,thermoelectric material and semiconductor.

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High Purity Phosphours Industrial Grade 99.999%

High purity phosphorus is blue blue lump, piece or ingot.

High Purity Phosphorus

Purity:99.999%, 99.9999%

Applications: it is mainly for semiconductor, photoelectric material and so on.

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Holmium Fluoride Industrial Grade 99.5%

Holmium fluoride is yellow solid which is existed with both of  hexagonal crystal and orthogonal crystal. It is rare earth metal fluoride. It is insoluble in water and dilute acid. HoF3 is stable at room temperature and pressure. Holmium sulfate solution is the raw material.

Holmium Fluoride

Purity: Ho/RE 99.5% 2N5

CAS No.:13760-78-6 EINECS No.:237-352-1 Molecular Formula:HoF3 Molecular Weight:221.93
Density: 7.829(hexgonal), 7.644(orthogonal) Melting Point:1143℃ Boiling Point:2200℃ UN 3288 6.1/PG 3

 

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Holmium Foil LAB GRADE 99.9%

holmium foil rare earth metal sheet 

Ho REM 99.9%

distillation method reduction method 

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