Table of Contents
What are the properties of rhenium?
Rhenium is a ductile, malleable, silvery metal. Ductile means capable of being drawn into thin wires. Malleable means capable of being hammered into thin sheets. It has a density of 21.02 grams per cubic centimeter, a melting point of 3,180°C (5,760°F), and a boiling point of 5,630°C (10,170°F).
What are two chemical properties of rhenium?
Rhenium metal is silvery white and extremely hard; it resists wear and corrosion very well and has one of the highest melting points of the elements….rhenium.
| atomic number | 75 |
|---|---|
| melting point | 3,180 °C (5,756 °F) |
| boiling point | 5,627 °C (10,161 °F) |
| specific gravity | 20.5 at 20 °C (68 °F) |
| oxidation states | +1, +2, +3, +4, +5, +6, +7 |
What are 5 common uses of rhenium?
Uses of Rhenium Rhenium is used with platinum as catalysts in the production of lead-free, high-octane gasoline. The metal is used in alloys for jet engines and in tungsten and molybdenum based alloys. It is widely used as filaments for mass spectrographs. Rhenium is also used as an electrical contact material.
What is rhenium used for?
Rhenium is used as an additive to tungsten- and molybdenum-based alloys to give useful properties. These alloys are used for oven filaments and x-ray machines. It is also used as an electrical contact material as it resists wear and withstands arc corrosion.
What are the properties of Re?
| Atomic number | 75 |
|---|---|
| Density | 20.5 g.cm-3 at 20°C |
| Melting point | 3170 °C |
| Boiling point | 5627 °C |
| Vanderwaals radius | 0.138 nm |
Is rhenium a transition metal?
Rhenium, element 75 on the periodic table, belongs to the cluster of elements known as the transition group of elements. It was the last of the natural elements to be discovered, some 50 years after the introduction of the periodic table. It is a silvery white, rare, heavy, polyvalent transition metal.
Is rhenium hard or soft?
Rhenium is a really hard and heat resistant metal, it has the third highest melting point among all the chemical elements (3,186 °C). It also has the highest boiling point (5,596 °C), high density (21.03 g/cm³), extraordinary resistance to corrosion and good capacity to conduct electricity and heat.
Is rhenium a metal?
It is a silvery white, rare, heavy, polyvalent transition metal. Chemically, it resembles manganese and is used in some alloys. Rhenium has one of the highest melting points of all elements, exceeded only by tungsten and carbon. It is also one of the most dense, exceeded only by platinum, iridium, and osmium.
What is the meaning rhenium?
Definition of rhenium : a rare heavy metallic element that is obtained either as a gray powder or as a silver-white hard metal, is usually extracted as a by-product of molybdenum smelting, and is used especially in catalysts and alloys — see Chemical Elements Table.
Is rhenium a conductor?
Properties. Rhenium is a metal element so it is a good thermal conductor and a good electrical conductor.
What is rhenium classified?
Rhenium is a chemical element with symbol Re and atomic number 75. Classified as a transition metal, Rhenium is a solid at room temperature.
Is rhenium a solid liquid or gas?
Why is rhenium important?
Rhenium is very hard, it resists corrosion but slowly tarnishes in moist air. Rhenium is used as an important component in superalloys for blades in turbine engines and this is the major use today. Rhenium is an ideal metal for use at very high temperatures, which makes it suitable for rockets motors.
Is rhenium a good conductor of electricity?
Rhenium is a metal element so it is a good thermal conductor and a good electrical conductor. Rhenium is a shiny solid at standard temperature and pressure and has a high melting point. Rhenium is malleable.
Is rhenium a noble metal?
noble metal, any of several metallic chemical elements that have outstanding resistance to oxidation, even at high temperatures; the grouping is not strictly defined but usually is considered to include rhenium, ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, and gold; i.e., the metals of groups VIIb.
Is rhenium flammable?
Special hazards arising from the mixture: Rhenium oxides. Advice for fire-fighters: Firefighters must wear full face, self-contained breathing apparatus with full protective clothing to prevent contact with skin and eyes. Further information: Flammable in the form of dust or powder when exposed to heat or flame.
Is rhenium reactive?
Rhenium is less reactive to air than manganese, which is two places above rhenium in the periodic table. It is about as reactive as technetium metal, which is immediately above rhenium in the periodic table. As such it tarnishes only very slowly in moist air.
Is rhenium a precious metal?
The precious metals include iridium, rhenium, ruthenium, rhodium, palladium, osmium, platinum, silver and gold. Of the nine precious metals, platinum is considered the most abundance with an abundance estimated to be . 003 parts per billion (ppb).
Is rhenium magnetic?
“Rhenium, in bulk, is not a magnetic material, but it turns out it is in certain combinations at the atomic scale. It worked fantastically in this case.” The researchers said the magnetic properties they discovered could make the 2-D alloys of interest to those who design spintronic devices.
What is the price of rhenium?
In 2020, catalytic-grade APR prices averaged $1,100 per kilogram, a 12% decrease from the annual average price in 2019. Rhenium metal pellet prices averaged $1,000 per kilogram in 2020, a 20% decrease from the annual average price in 2019.
Rhenium is a metal with very high strength, good ductility and cold working properties. It is a material used in many high-temperature applications. More than 80% of the global rhenium usage is in high-temperature superalloys for aircraft applications like turbine blades and engine parts.
What is the melting point of rhenium in C?
Rhenium (Re) has the third-highest melting point (3186°C, exceeded by tungsten and carbon only) and has the highest boiling point (5596°C) among all elements. Therefore, C/C coated with rhenium coating is attractive (Wang et al., 2014b ).
What are some examples of Rhenium-based alloys?
For example, nickel-based alloys with 1 to 3 wt% rhenium are used as aircraft turbine blades due to their high strength and oxidation resistance.
What are the mechanical properties of annealed rhenium?
The mechanical properties of annealed rhenium are outlined in the following table. Hardness, Brinell (converted from Vickers for 3000 kg load/10 mm ball Brinell test.) The thermal properties of rhenium are outlined in the following table. Rhenium cannot be machined by conventional means like milling, turning, etc.