Everyone knows that aluminum oxide powder is the main raw material for producing white corundum. So, what is the difference between aluminum hydroxide, which has a similar name to aluminum oxide powder? Actually, the difference is quite significant, so how do we divide it? Let's take a look together:
The difference between aluminum oxide and aluminum hydroxide powder:
1. Their forms are different: aluminum hydroxide is a white precipitate, while aluminum oxide is a solid. This is the easiest aspect to distinguish, which can be distinguished from the appearance.
2. Different properties: aluminum hydroxide is a zwitterionic hydroxide, while aluminum oxide is; Amphoteric oxides, among which alumina is a product of aluminum hydroxide.
The main way to distinguish them is from their appearance. In fact, in addition to the above two, it can also be judged by heating aluminum hydroxide, because the heated aluminum hydroxide can obtain aluminum oxide.
Aluminum oxide (Al ₂ O æ) is a high hardness compound with a melting point of 2054 ℃ and a boiling point of 2980 ℃. It is an ionizable ionic crystal at high temperatures and is commonly used in the manufacture of refractory materials. Industrial Al2O3 is composed of alumina (Al2O3) ▪ Al2O3, which requires high purity, is generally prepared by chemical methods using 3H2O and hard alumina.
Aluminum hydroxide, with the chemical formula Al (OH) 3, is the hydroxide of aluminum. Aluminum hydroxide can react with acids to form salts and water, as well as strong bases to form salts and water, making it a type of amphoteric hydroxide. The chemical formula Al (OH) 3 is the hydroxide of aluminum. Due to its acidity, it can also be called aluminum acid (H3AlO3). But in reality, what is generated when reacting with alkali is tetrahydroxyaluminate ([Al (OH) 4] -). Therefore, it is usually regarded as monohydrated metaaluminic acid (HAlO2 · H2O), which is divided into industrial grade and pharmaceutical grade according to its use
