Chemical Formula | LuF3 |
Molar Mass | 219.95 g/mol |
Appearance | white solid |
Crystal Structure | orthorhombic |
Density | 6.16 g/cm³ |
Melting Point | 1195 °C |
Boiling Point | ~2200 °C |
Solubility In Water | insoluble |
Solubility In Acids | reacts with acids |
Electrical Conductivity | poor conductor in solid state |
Magnetic Properties | paramagnetic |
What is the main use of Lutetium fluoride (LuF3)?
Lutetium (Lutetium) fluoride, its main use is very wide. In the field of luminescent materials, LuF is the most important. Because of its unique crystal structure and optical properties, it is often selected as a matrix material for the preparation of various phosphors. These phosphors shine brightly in lighting fixtures, making the light brighter, softer and more efficient, which is beneficial to people's daily lighting.
In the field of scintillator materials, LuF also plays a pivotal role. Scintillator is a kind of material that can convert the energy of high-energy particles or rays into visible light. The scintillator made by LuF has high detection efficiency and good resolution for radiation. Therefore, it is widely used in nuclear physics research, medical imaging such as positron emission tomography (PET) and other fields. In nuclear physics experiments, it helps scientists to accurately detect particles; in medical imaging, it helps doctors to clearly understand the internal conditions of the human body and diagnose diseases.
Furthermore, in the manufacture of optical glass, LuF is also indispensable. Adding an appropriate amount of LuF to the glass composition can effectively improve the optical properties of the glass, such as increasing the refractive index and reducing the dispersion. In this way, the made optical glass is more suitable for high-end optical instruments, such as telescopes, microscopes, etc., to improve the imaging quality and observation effect.
In addition, LuF also shows unique value in the manufacture of some special electronic devices. Due to its electrical properties and chemical stability, it can be used to prepare special coatings for electronic components to enhance their performance and stability and ensure the stable operation of electronic equipment.
What are the physical properties of Lutetium fluoride (LuF3)
Lutetium is a fluoride with many physical properties. Its appearance is white powder, the texture is fine, and it is quite stable at room temperature and pressure.
When it comes to crystal structure, LuF
belongs to the hexagonal crystal system. This structure gives it unique symmetry and spatial arrangement. The interaction between atoms is stable, which has a profound impact on its physical properties.
Its density is about 6.16 g/cm ³, and the density is high, indicating that the atoms are closely arranged in a limited space.
LuF < has a high melting point of about 1680 ° C. This high temperature characteristic is due to the strong force of ionic bonds. It requires a lot of energy to break the lattice structure and turn the substance from solid to liquid.
In the field of optics, LuF
exhibits good light transmittance, especially at specific wavelengths, which makes it potentially valuable in optical materials.
Furthermore, LuF
has a low coefficient of thermal expansion, which means that when the temperature changes, its size changes slightly. When applied in high temperature environments, it can maintain structural stability and reduce material damage caused by thermal expansion and contraction.
In addition, its electrical properties also have characteristics. Although the electrical conductivity is poor, it is an insulator, but under certain specific conditions, such as doping other elements, the electrical properties may be changed, thus expanding the application range.
Overall, with these physical properties, LuF has shown broad application prospects in many fields such as optical devices, high-temperature materials, and the preparation of special electronic materials.
Is Lutetium fluoride (LuF3) chemically stable?
Lutetium (Lutetium) is a fluoride, and its chemical properties can be described as stable to a certain extent. LuF is an ionic compound composed of lutetium ions (Lu ³) and fluoride ions (F) combined by an ionic bond. This ionic bond is quite strong, giving it a certain stability.
From a thermodynamic perspective, the reaction that forms LuF is usually a negative Gibbs free energy change, which means that the spontaneous tendency of the formation reaction is significant, and the generated LuF is relatively stable under normal conditions.
At room temperature and pressure without special chemical reaction conditions, LuF does not react easily with common components in the air, such as oxygen, nitrogen, carbon dioxide, etc. However, under high temperature or specific strengthening conditions, its stability may change.
When encountering strong acids, such as strong acids other than hydrofluoric acid, LuF
is usually difficult to react with. Because of its stable lattice structure, ionic bonds are not easily destroyed by the action of general strong acids. However, in hydrofluoric acid, its stability is affected due to the large increase in the concentration of fluoride ions, or reactions such as coordination may occur.
In the aqueous environment, LuF
has very low solubility and is difficult to dissolve in water, which also reflects its chemical stability. Because water molecules are difficult to overcome their lattice energy to dissociate, they can maintain a relatively stable solid state in water.
However, under extreme conditions such as high temperature and the presence of strong reducing agents, the stability of LuF is challenged, lutetium ions may be reduced, and the lattice structure is destroyed. In short, under common mild conditions, the chemical properties of LuF are relatively stable, but under special extreme conditions, its stability will change accordingly.
What is the production method of Lutetium fluoride (LuF3)?
There are two common methods for making lutetium fluoride (LuF
First, lutetium hydroxide (Lu (OH)
) and hydrofluoric acid (HF) are used as raw materials. First, pure lutetium hydroxide is taken and placed in a special reaction vessel. The lutetium hydroxide must be finely purified with very few impurities to maintain the purity of the product. Then, slowly inject an appropriate amount of hydrofluoric acid. When the two meet, they will react. The chemical formula is: Lu (OH) + 3HF → LuF + 3H 2O O. During the reaction, stir moderately to make the two fully contact and the reaction is more complete. After the reaction, a mixture containing lutetium fluoride is obtained. After various processes such as evaporation and crystallization, excess moisture and impurities are removed to obtain pure lutetium fluoride crystals.
Second, lutetium carbonate (CO
) and hydrofluoric acid are used as materials. Lutetium carbonate also needs to be carefully selected for high quality. Put it into an acid-resistant container and slowly add hydrofluoric acid. The reaction formula is: Lu (CO < unk >) < unk > + 6HF → 2LuF < unk > + 3H < unk > O + 3CO < unk > ↑. This reaction has carbon dioxide gas escaping, so pay attention to ventilation to ensure safety. The treatment after the reaction is also the same as the previous method, through evaporation and concentration, cooling and crystallization, filtration and washing, etc., the final product of lutetium fluoride is obtained. And at the time of preparation, the reaction temperature, the ratio of raw materials, and the reaction time need to be carefully controlled, so that high-purity lutetium fluoride can be obtained to meet all requirements.
What is the price range of Lutetium fluoride (LuF3) in the market?
In today's market, the price of lutetium fluoride (LuF
) varies depending on factors such as quality, purity, and market conditions. Generally speaking, its price ranges from a few yuan to tens of yuan per gram. If it is of ordinary purity, the price per gram may be a few yuan to more than ten yuan; if it is of extremely high purity and meets the standards for special purposes such as scientific research, the price per gram may be several tens of yuan.
However, this price is uncertain and often fluctuates due to changes in the supply and demand of raw materials, difficulties in process, and market demand. If the supply of lutetium minerals is tight, or the refining process is difficult, resulting in higher production costs, the price will rise. And if the market demand increases sharply, the supply exceeds the demand, and the price will also rise.
Buyers who want to know the exact price should consult chemical raw material suppliers, precious metal traders, or check the recent transaction price on the chemical product trading platform to show the current market price range.