Decomposition Temperature Of Aluminum Hydroxide

The chemical stability of aluminum hydroxide is not very good, and it is very active, so it can react with acids and alkalis, and it can also decompose at high or low temperatures. Let's talk about the decomposition temperature of aluminum hydroxide.

1. Aluminum hydroxide can be decomposed to form alumina, and calcined at a temperature of 950-1200 °C to obtain α-type alumina powder, which can be used to make artificial corundum; it can be dehydrated at a low temperature of 140-150 °C. γ-type alumina was obtained.

2. Since it is insoluble material, there is no high requirement for humidity, the temperature should be below the normal temperature value and protected from light so as to avoid high temperature caused by exposure to light and cause it to decompose.

3. Aluminum hydroxide is a filler with a large specific heat capacity, and its heat storage and thermal conductivity make the material not reach the decomposition temperature or absorb heat through thermal decomposition of the flame retardant, thereby slowing down or terminating the temperature rise; however, untreated nanohydrogen The agglomeration of alumina is serious, resulting in uneven thermal decomposition rate. After heat treatment, the dispersibility of the particles is greatly improved, and a monomolecular coating can be formed on the surface of the filler, which can greatly reduce its surface energy and weaken the strong adsorption between particles.