What are properties of rhenium?
Physical properties 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 is special about rhenium?
Rhenium is element 75 in the periodic table and in many ways a rather unusual element. It is also one of the densest elements, following only platinum, iridium and osmium and it is one of the highest melting point elements exceeded only by tungsten and carbon.
What is rhenium most commonly used for?
Rhenium is used in flash lamps for photography and for filaments in mass spectrographs and ion gages, but is most frequently used as an alloying agent in tungsten and molybdenum and as a catalyst for performing certain reactions to a type of hydrocarbon known as an olefin.
What are three interesting facts about rhenium?
Here are some more interesting facts about rhenium.
- Rhenium was named after a river in Germany. Rhenium was first discovered way back in 1925 by a trio of scientists named Otto Berg, Walter Noddack, and Ida Tacke Noddack.
- Rhenium has very high boiling and melting points.
- Rhenium is rarer than most other elements.
How strong is rhenium?
With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth’s crust. Rhenium has the third-highest melting point and highest boiling point of any stable element at 5869 K.
What element does rhenium react with?
It forms volatile oxides with oxygen at high temperature. In air at 350°C, the heptoxide, Re2O7, is formed. When heated with fluorine or chlorine, the fluorides or chlorides are formed. Rhenium reacts with silicon, boron, and phosphorus at elevated temperature to form silicides, borides, and phosphides.
Does rhenium oxidize?
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. The metal powder slowly oxidizes in air above 150 °C (300 °F) and rapidly at higher temperatures to form the yellow heptoxide, Re2O7.
What is rhenium made out of?
Rhenium is a silvery white element with a metallic luster. It has a high density point exceeded only by platinum, iridium and osmium, and its melting point is exceeded only by tungsten and carbon. Commercial rhenium is obtained from molybdenum roaster-flue dusts found in copper-sulfide ores.
What is the normal phase of rhenium?
solid
| Rhenium | |
|---|---|
| Phase at STP | solid |
| Melting point | 3459 K (3186 °C, 5767 °F) |
| Boiling point | 5903 K (5630 °C, 10,170 °F) |
| Density (near r.t. ) | 21.02 g/cm3 |
Is rhenium safe to handle?
Health effects of rhenium May cause skin irritation. Liquid may cause burns to skin and eyes. Ingestion: May cause irritation of the digestive tract. Inhalation: May cause respiratory tract irritation.
Is francium a metal?
francium (Fr), heaviest chemical element of Group 1 (Ia) in the periodic table, the alkali metal group.
Where can you find rhenium on the periodic table?
Rhenium is an extremely rare element and is scattered widely in nature. It is a heavy, silvery-white and a third-row transition metal in group 7 of the periodic table. The element can be traced on the earth’s surface in parts per billion. The element has no mineral characteristic and it has been detected in certain ores of platinum and molybdenite.
Is the melting point of rhenium high or low?
Rhenium is a silvery metal but rarely seen as such on account of its high melting point, which is the third highest after carbon and tungsten. Rhenium is very hard, it resists corrosion but slowly tarnishes in moist air. Applications.
How is rhenium used in a turbine engine?
The element is mainly used as a petroleum reforming catalyst and also in the turbine engine of high-temperature components as superalloys. The element amplifies the high-temperature strength properties of some nickel -based superalloys.
What can rhenium be used for in rockets?
Rhenium is an ideal metal for use at very high temperatures, which makes it suitable for rockets motors. Rhenium is added to tungsten and molybdenum to form alloys that are used as filaments for ovens and lamps.