Platinum 99.95% 5 grams

Platinum 99.95% 5 grams

 

Allied Chemicals GmbH (AL-GMBH) is a leading Specialty Chemicals & Science Based Company in Germany. With over 20 years of experience supplying to the manufacturing industry internationally, we deliver an extensive range of high quality Specialty Chemicals & Allied Products to several sectors.

The chemical preparation of all our products are synthesized. These substances possesses sterile effect, so you must be fully aware of what you are purchasing hence there’s no prejudice involved in the offer and acceptance.

Available for sale here is Platinum 99.95% 5 grams :

Platinum 99.95% (3N5 purity) is a high-purity, precious metal featuring exceptional chemical inertness, high corrosion resistance, and a melting point. It is widely used in industrial, laboratory, and investment applications, including catalytic coatings, electrodes, sensors, and high-purity, durable jewelry.

Platinum is a chemical element with the symbol Pt and atomic number 78, classified as a dense, malleable, ductile, corrosion-resistant, silvery-white transition metal in group 10 of the periodic table.

It belongs to the platinum-group metals (PGEs), which include platinum, palladium, rhodium, ruthenium, iridium, and osmium, sharing similar physical and chemical properties such as high melting points and catalytic activity.

With a melting point of 1,768 °C, a boiling point of 3,825 °C, and a density of 21.45 g/cm³ at room temperature, platinum is one of the densest elements and exhibits exceptional stability against oxidation and chemical attack, making it highly valued for both aesthetic and industrial applications.

Physical Properties:

Platinum is a silvery-white transition metal with the chemical symbol Pt and atomic number 78, positioned in group 10 and period 6 of the periodic table.

It exhibits a lustrous appearance and is renowned for its exceptional density, measuring 21.45 g/cm³ at 20°C, which ranks it as the densest among common metals aside from osmium and iridium. This high density contributes to its weighty feel and stability in applications requiring durability.

The metal has a high melting point of 1768.3°C and a boiling point of 3825°C, reflecting strong metallic bonding that allows it to withstand extreme temperatures without phase change.

Platinum’s crystal structure is face-centered cubic (FCC), with a lattice constant of 3.9239 Å, which underpins its close-packed atomic arrangement and isotropic properties.

Platinum demonstrates remarkable malleability and ductility, enabling it to be drawn into wires as thin as 0.0025 mm or hammered into sheets 0.1 μm thick, properties that facilitate its fabrication into intricate forms.

Its electrical resistivity is 10.6 μΩ·cm at 20°C, making it a reliable conductor in precision instruments, while its thermal conductivity stands at 71.6 W/(m·K).

Additionally, the specific heat capacity is 0.133 J/(g·K), and the coefficient of thermal expansion is 8.8 × 10⁻⁶ /K, indicating moderate heat absorption and low dimensional change with temperature variations.

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