aluminum;trihydrate(CAS: 1302-74-5)

Aluminum trihydrate (CAS: 1302-74-5) is a white, crystalline powder with a molecular weight of approximately 102.09 g/mol. It is poorly soluble in water but soluble in acids. Chemically, it is highly reactive with acids to form aluminum salts and water. It has a high melting point of about 200°C and is commonly used in pharmaceuticals, cosmetics, and as a fire retardant due to its ability to decompose exothermically and release water.

Aluminum trihydrate is typically synthesized by the hydrolysis of aluminum salts in an alkaline medium. Common methods include the use of aluminum sulfate and an excess of sodium hydroxide. The process involves the gradual addition of the base to the salt solution, leading to the formation of the hydrate as a precipitate. The product is then usually dried and calcined to remove water from the structure, yielding aluminum oxide. The synthesis is influenced by reaction conditions such as pH, temperature, and the concentration of reactants.

Aluminum trihydrate (CAS: 1302-74-5) is widely used in various industries due to its unique properties. In pharmaceuticals, it is used as an antacid and as a binding agent in tablets. In cosmetics, it serves as a drying agent and is often included in face powders and creams. Additionally, it finds applications in the textile industry as a flame retardant, in the polymer industry as a filler, and in the electronics industry for its insulating and stabilizing properties.

When handling aluminum trihydrate (CAS: 1302-74-5), it is crucial to take appropriate safety measures. Wear protective gloves, safety goggles, and a lab coat to protect against skin and eye contact. Store the compound in a cool, dry place away from direct sunlight. If contact occurs, wash the affected area with water and seek medical attention if necessary. In case of a spill, use absorbent materials to contain the spill and dispose of the waste according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed guidelines on handling and storage.