Triacetin European Overview

1. Application
Triacetin is used in many fields. In the food industry, it is often used as a fragrance fixative, which can make the aroma of food more lasting and stable, and enhance the flavor of food. In the pharmaceutical field, triacetin can act as a drug excipient, assist in drug molding, improve drug stability, or improve drug solubility, and help drugs to be better released and absorbed in the body. In the cosmetic industry, because of its good solubility and moisturizing properties, it is often added to skin care products and cosmetics to make the product texture more delicate, and at the same time moisturize and moisturize the skin.

2. Properties
1. ** Physical properties **: Triacetin is a colorless transparent oily liquid with a slight odor and a relatively mild odor. Its boiling point is quite high, about 258-259 ° C, which makes it more stable at room temperature and less volatile. The density is slightly larger than that of water, about 1.16-1.17g/cm ³, and it is miscible with a variety of organic solvents, such as ethanol, ether, etc., showing good solubility.
2. ** Chemical properties **: Triacetin has the general chemical properties of esters, and hydrolysis can occur under acid or alkali catalysis conditions. Hydrolysis is relatively slow under acidic conditions, while under alkaline conditions, the hydrolysis reaction rate is accelerated, resulting in glycerol and corresponding acetate. Due to the presence of ester groups in its molecular structure, the chemical properties are relatively stable, and other chemical reactions are not easy to occur under general storage conditions.

Third, the production of
triacetin is mostly made of glycerol and acetic acid. First, glycerol and acetic acid are put into the reactor in a certain proportion, and an appropriate amount of catalyst, such as sulfuric acid, is added to accelerate the reaction process. The reaction process requires strict control of temperature and pressure. Usually the reaction temperature is maintained between 120-150 ° C, and the pressure is maintained at normal pressure to slightly higher than normal pressure. Under this condition, glycerol and acetic acid undergo esterification to form triacetin. After the reaction is completed, the product needs to go through a series of post-processing steps. First, through the neutralization operation, an appropriate amount of alkaline substances are added to neutralize the excess acid, and then washed with water to remove impurities and water-soluble by-products in the reaction system. Then, the distillation process is used to separate the high-purity triacetin products according to the difference in the boiling point of triacetin and other impurities.

IV. MARKET
At present, the triacetin market is showing a continuous growth trend. With the continuous development of food, pharmaceutical and cosmetic industries, the demand for triacetin is rising day by day. In the food industry, consumers' increasing requirements for food quality and flavor have prompted food companies to increase the use of fragrance fixatives, thereby driving the growth of demand for triacetin. In the pharmaceutical industry, the expansion of new drug research and development and production scale has increased the demand for high-quality drug excipients, providing a broad market space for triacetin. The cosmetics industry pays attention to the moisturizing and texture improvement of products. Triacetin is widely used because of its excellent characteristics, which further stimulates market demand. From a geographical perspective, the market demand in developed countries and regions such as Europe, America and other developed countries and regions is relatively stable and large in scale, while emerging markets such as Asia and South America with the economic development and the rise of related industries, the demand for triacetin has increased significantly, and it is expected to become an important consumption growth point in the future.