Gold hydroxide Powder
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Gold hydroxide Powder
| Product |
Gold hydroxide Powder |
| Colour | Vivid, dark yellow crystals |
| Purity | 99% |
| Pack size | 100-325 Mesh (customizable) |
| Ingredient/MF | Au(OH)3 |
| Product Code | NCZ-CP-241/20 |
| CAS Number | 1303-52-2 |
Gold hydroxide Description
Gold hydroxide, gold trihydroxide, or gold hydroxide is an inorganic compound, a hydroxide of gold, with formula Au(OH)3. It is also called auric acid with formula H3AuO3. It is easily dehydrated above 140 °C to gold oxide. Salts of auric acid are termed aurates.
Gold hydroxide is used in medicine, porcelain making, gold plating, and daguerrotypes. Gold hydroxide deposited on suitable carriers can be used for preparation of gold catalysts.
Gold hydroxide is a product of electrochemical corrosion of gold metalization subjected to moisture and positive electric potential; it is one of the corrosion failure modes of microelectronics. Voluminous gold hydroxide is produced from gold metalization; after the layer grows thick it may spall, and the conductive particles may cause short circuits or leakage paths. The decreased thickness of the gold layer may also lead to an increase in its electrical resistance, which can also lead to electrical failure.
Gold is a chemical element with the symbol Au (from Latin: aurum) and atomic number 79, making it one of the higher atomic number elements that occur naturally. In a pure form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental (native) form, as nuggets or grains, in rocks, in veins, and in alluvial deposits.
It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium and also as mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides).
Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), which forms a soluble tetrachloroaurate anion. Gold is insoluble in nitric acid, which dissolves silver and base metals, a property that has long been used to refine gold and to confirm the presence of gold in metallic objects, giving rise to the term acid test.
Gold also dissolves in alkaline solutions of cyanide, which are used in mining and electroplating. Gold dissolves in mercury, forming amalgam alloys, but this is not a chemical reaction.
Related Information
Please email us for the customization.
Email: contact@nanochemazone.com
Please contact us for customization and price inquiry
Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters.
Note: For pricing & ordering information, please contact us at sales@nanochemazone.com
Please contact us for quotes on Larger Quantities & Customization. E-mail: contact@nanochemazone.com
Customization:
If you are planning to order large quantities for your industrial and academic needs, please note that customization of parameters (such as size, length, purity, functionalities, etc.) are available upon request.
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| CAS No. | 1302-81-4 |
| Appearance | White Powder |
| Purity | 99.9% |
| APS | 1 – 5 Microns (Can be customized) |
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| Product Code | NCZ-MP-S101 |
| Molecular Weight | 150.16 g/mol |
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| Purity | 99.9% |
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| CAS No | 7439-89-6 |
| Purity | 99.9% |
| APS | 5-10µm |
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| Molecular Weight | 55.85g/mol |
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| Color | Gray |
| Density | 7.86g/cm3 |
| Melting Point | 1535°C |
| Boiling Point | 2750°C |
| Thermal Expansion | 11.8 µm•m-1•K-1 |
| Thermal Conductivity | 0.804 W/cm/K (298.2 K) |
| Vickers Hardness | 608 MPa |
| Poisson's Ratio | 0.29 |
| Electrical Resistivity | 9.71 µΩ•cm (20°C) |
| Electronegativity | 1.8 Paulings |
| Young's Modulus | 211 GPa |
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