DL-Lactic Acid (CAS 598-82-3) is a fundamental organic acid with a fascinating chemical profile and a wide array of applications. Its structure, properties, and the methods of its production all contribute to its versatility and importance across various industries. As a leading manufacturer and supplier of DL-Lactic Acid in China, we are committed to providing products of the highest purity, ensuring optimal performance for our clients. Understanding the science behind this compound is key to appreciating its value.

Chemically, DL-Lactic Acid is an alpha-hydroxy acid, meaning it possesses both a carboxyl group (−COOH) and a hydroxyl group (−OH) on the alpha carbon atom. This bifunctional nature dictates much of its reactivity. It is a chiral molecule, existing as two stereoisomers: L-lactic acid and D-lactic acid. The mixture of these two in equal proportions is known as DL-Lactic Acid or racemic lactic acid. Its molecular formula is C3H6O3, and it has a molecular weight of 90.08 g/mol. Typically supplied as a white crystal powder, it is known for its mild acidity and good solubility in water and ethanol.

The production of DL-Lactic Acid primarily follows two routes: chemical synthesis and fermentation. Chemical synthesis often involves reacting acetaldehyde with hydrogen cyanide, followed by hydrolysis. While this method can produce racemic lactic acid, it can also involve toxic raw materials and may result in lower purity compared to fermentation. Fermentation, on the other hand, utilizes microorganisms, such as specific strains of bacteria (e.g., Lactobacillus), to convert carbohydrates (like glucose from corn or sugar beets) into lactic acid. This biological process is generally favored for producing high-purity DL-Lactic Acid, as it can be optimized for yield and minimized by-product formation.

The purity of DL-Lactic Acid is a critical factor, especially for food, cosmetic, and pharmaceutical applications. Impurities can affect taste, color, stability, and even safety. Our company ensures that the DL-Lactic Acid we supply meets rigorous quality standards, typically offering a purity of ≥98%. This high purity is achieved through carefully controlled fermentation processes and subsequent purification steps. When you choose to buy DL-Lactic Acid from a reputable lactic acid supplier, you are investing in the reliability and performance of your final product.

The mild acidity of DL-Lactic Acid makes it an excellent choice for pH adjustment and flavor enhancement in food products, while its bacteriostatic properties help extend shelf-life. In industrial settings, it finds use in textiles, leather processing, and importantly, as a precursor for polylactic acid (PLA), a popular biodegradable polymer. For businesses seeking a dependable lactic acid manufacturer, our commitment to scientific rigor in production and quality assurance guarantees a product that meets diverse industrial demands.

We invite formulators, R&D scientists, and procurement managers to learn more about the scientific merits of our DL-Lactic Acid. Contact us to discuss your specific requirements and explore how our high-purity product can benefit your applications.