
The solubility and stability of dl-alanine are critical physical and chemical properties. DL-Alanine has relatively high solubility in water. Specifically, its solubility in water at 20°C is 156 g/L, meaning that 156 grams of dl-alanine can dissolve in one liter of water. Additionally, it is readily soluble in hot water, with a solubility of 16.72 g/100 ml at 25°C. However, it is slightly soluble in ethanol and insoluble in ether and acetone. These solubility characteristics make dl-alanine highly suitable for solution preparation and chemical reactions, offering good solubility and operational flexibility.
DL-alanine exhibits stable chemical properties under normal temperature and pressure. It is not prone to chemical reactions and can maintain the stability of its chemical structure under specific conditions. This stability is one of the key reasons dl-alanine is widely used in pharmaceutical, food, and other industrial applications.
Furthermore, dl-alanine has a melting point of approximately 295–300°C (some sources report a melting point of 272–275°C). At this temperature, it undergoes melting and decomposition. Therefore, during the storage and use of DL-alanine, it is essential to avoid high-temperature environments to ensure its stability and safety.
The high solubility and chemical stability of dl-alanine make it a valuable compound with broad application prospects in pharmaceuticals, food production, and other industrial fields. Proper storage and handling conditions, particularly temperature control, are necessary to maintain its stability and safety.