The product we are introducing here is Factory Supply 8-hydroxyquinoline aluminum salt with the CAS number 2085-33-8. 8-hydroxyquinoline aluminum salt is an important organic metal complex. Physically, it usually appears as a yellow - green to yellow - brown powder. It has good thermal stability and chemical stability under normal conditions.
The molecular formula of 8-hydroxyquinoline aluminum salt is C27H18AlN3O3, and its molecular weight is approximately 459.43 g/mol. It has a characteristic melting point range, typically around 418 - 420 °C. This product is insoluble in water but soluble in some common organic solvents such as chloroform, dichloromethane, etc.
8-hydroxyquinoline aluminum salt has a wide range of applications in various fields. In the field of organic electroluminescence (OLED), it is a classic electron - transporting and emitting material. Due to its good electron - transporting ability and relatively high fluorescence quantum yield, it can be used as an emitting layer or an electron - transporting layer in OLED devices, which is conducive to improving the luminous efficiency and stability of the device.
In the field of analytical chemistry, 8-hydroxyquinoline aluminum salt can be used as a fluorescent reagent for the detection of metal ions. It can form complexes with some metal ions, resulting in a change in fluorescence intensity, which can be used for qualitative and quantitative analysis of these metal ions.
It also has potential applications in the field of materials science. For example, it can be used as a modifier for some polymer materials to improve the mechanical properties and thermal stability of polymer materials.
When using 8-hydroxyquinoline aluminum salt in OLED production, first, it needs to be purified to remove impurities that may affect device performance. The purification methods usually include sublimation purification. Then, it can be deposited on a substrate by physical vapor deposition (PVD) techniques, such as thermal evaporation. During the evaporation process, the temperature and evaporation rate need to be precisely controlled to ensure the uniformity and quality of the film.
In analytical chemistry, when using it as a fluorescent reagent, a certain amount of the product needs to be dissolved in a suitable organic solvent to prepare a solution of a certain concentration. Then, the sample containing the metal ions to be detected is added to the solution, and the change in fluorescence intensity is measured using a fluorescence spectrophotometer.
When using it as a polymer material modifier, it can be mixed with polymer monomers during the polymerization process or blended with the polymer in the molten state. Appropriate processing conditions, such as temperature and mixing time, need to be selected to ensure its uniform dispersion in the polymer matrix.
Case 1: OLED Display Production
In a certain OLED display manufacturing company, they used 8-hydroxyquinoline aluminum salt as the electron - transporting layer material in the OLED device. First, they purified the 8-hydroxyquinoline aluminum salt by sublimation under high - vacuum conditions. Then, they placed the purified product in a thermal evaporation source in a vacuum evaporation chamber. By gradually heating the evaporation source, the 8-hydroxyquinoline aluminum salt was evaporated and deposited on the substrate at a controlled rate. After the preparation of the device, the test results showed that the luminous efficiency of the OLED device increased by 15% compared with the device without using 8-hydroxyquinoline aluminum salt, and the service life also increased significantly.
Case 2: Metal Ion Detection in Environmental Samples
A research team was committed to detecting the content of copper ions in environmental water samples. They prepared a 0.01 mol/L solution of 8-hydroxyquinoline aluminum salt in chloroform. Then, they took an appropriate amount of environmental water samples and adjusted the pH value. After adding a certain amount of the prepared solution, they measured the fluorescence intensity using a fluorescence spectrophotometer. By comparing with the standard curve, they accurately determined the content of copper ions in the water samples, providing an important basis for environmental monitoring.
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