The difference between aluminum hydroxide and pseudo boehmite

The chemical formula Al (OH) 3 for aluminum hydroxide is divided into industrial grade and pharmaceutical grade.

Aluminum hydroxide 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, therefore it is also an amphoteric hydroxide. The chemical formula Al (OH) 3 is the hydroxide of aluminum. Due to its acidity, it can also be called aluminic acid (H3AlO3). However, the actual reaction with alkali generates tetrahydroxyaluminate ([Al (OH) 4] -). Therefore, it is usually regarded as a monohydrate of hemialuminic acid (HAlO2 · H2O). Appearance and properties: white amorphous powder, density: 2.40, melting point: 300 ℃, water solubility: insoluble, slow, long-lasting, strong anti acid effect, astringent effect, mucosal protective effect, leading to constipation, no production of CO2 (carbon dioxide), no acid rebound, and no alkalinity.

Pseudo boehmite is non-toxic, odorless, and odorless, with a white colloidal (wet) or powder (dry) appearance and properties. It has high crystal purity, good gel solubility, and strong adhesion. Pseudo boehmite（ α′- AlOOH), also known as pseudoboehmite, is a kind of aluminum hydroxide with fine particles, incomplete crystallization and thin folded layers. Its water bearing state is thixotropic gel, which has the characteristics of high specific surface area and large pore volume. Its water bearing state is thixotropic gel. Pseudo boehmite can be used as a raw material for producing catalyst carriers and active alumina, as well as as as a molding binder for molecular sieves, silicate refractory products, and catalysts for alcohol dehydration to produce ethylene and ethylene oxide; Products roasted between 400 and 700 ℃ γ- Al2O3 is widely used as a catalyst carrier, catalyst, and adsorbent; Nanoscale can be obtained by calcination between 1100-1200 ℃ α- Al2O3 is widely used as a coating additive, high-end ceramics, high-efficiency catalyst in petrochemical industry, submicron/nanoscale grinding and polishing materials, cosmetic fillers, and inorganic membrane materials. It is a new type of material with broad development prospects.

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