DL-Tartaric Acid, a prominent organic acid identified by CAS number 133-37-9, is a compound characterized by its white crystalline appearance and a distinctly sour taste. Its chemical formula, C4H6O6, and molecular weight of 150.09 g/mol, provide the foundation for its wide-ranging applications. Understanding its physical and chemical properties is the first step in appreciating its value across industries.

Physically, DL-Tartaric Acid typically presents as a white crystalline powder or granules. It is readily soluble in water and sparingly soluble in ethanol, a characteristic that influences its use in various formulations. Its melting point is around 200-206°C, indicating its stability under moderate thermal conditions. The pKa values of 3.03 and 4.37 highlight its acidic nature, crucial for its role as an acidulant and pH regulator.

While chemically synthesized, DL-Tartaric Acid also has natural counterparts. Tartaric acid itself occurs naturally in many fruits, most notably grapes and tamarinds, contributing to their tartness. The naturally occurring form is L-(+)-tartaric acid, which is dextrorotatory. DL-Tartaric Acid, being a racemic mixture of L- and D-tartaric acid, is optically inactive. This distinction is particularly important in pharmaceutical applications where specific stereoisomers are often required.

Regarding health impacts, DL-Tartaric Acid is generally recognized as safe (GRAS) when used in food at appropriate levels. However, in very high doses, it can act as a muscle toxin by interfering with malic acid production, though the minimum recorded fatal dose in humans is significant (around 12 grams). This highlights the importance of adhering to recommended usage levels.

For industries seeking to procure DL-Tartaric Acid, particularly those requiring consistent quality for food grade DL-Tartaric Acid uses or as a pharmaceutical intermediate DL-Tartaric Acid, sourcing is a critical consideration. Companies need to identify reliable suppliers who can guarantee purity and adherence to regulatory standards. Whether looking to buy DL-Tartaric Acid online or through established distribution channels, factors such as origin, manufacturing process (referencing various tartaric acid synthesis methods), and supplier reputation are paramount. Companies like NINGBO INNO PHARMCHEM CO.,LTD. are established players in providing high-quality DL-Tartaric Acid to meet global demand.