Products
| Boron | |
| Appearance | Black-brown |
| Phase at STP | Solid |
| Melting point | 2349 K (2076 °C, 3769 °F) |
| Boiling point | 4200 K (3927 °C, 7101 °F) |
| Density when liquid (at m.p.) | 2.08 g/cm3 |
| Heat of fusion | 50.2 kJ/mol |
| Heat of vaporization | 508 kJ/mol |
| Molar heat capacity | 11.087 J/(mol·K) |
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High purity Indium metal ingot Assay Min.99.9999%
Indium is a softer metal that is shiny and silvery and is commonly found in the automotive, electrical, and aerospace industries. Ingot is the simplest form of indium. Here at UrbanMines, Sizes are available from small ‘finger’ ingots, weighing only grams, to large ingots, weighing many kilograms.
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Cobalt powder available in a wide range of particle sizes 0.3~2.5μm
UrbanMines specializes in producing high purity Cobalt Powder with the smallest possible average grain sizes, which are useful in any application where high surface areas are desired such as water treatment and in fuel cell and solar applications. Our standard powder particle sizes average in the range of ≤2.5μm, and ≤0.5μm.
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Niobium Powder
Niobium Powder (CAS No. 7440-03-1) is light grey with a high melting point and anti-corrosion. It takes on a bluish tint when exposed to air at room temperatures for extended periods. Niobium is a rare, soft, malleable, ductile, gray-white metal. It has a body-centered cubic crystalline structure and in its physical and chemical properties it resembles tantalum. The metal’s oxidation in air commences at 200°C. Niobium, when used in alloying, improves strength. Its superconductive properties are enhanced when combined with zirconium. Niobium micron powder finds itself in various applications such as electronics, alloy-making, and medical due to its desirable chemical, electrical, and mechanical properties.