N-Butyl lactate

Butyl lactate

N-Butyl lactate is an organic compound that belongs to the family of esters derived from lactic acid. It is a clear, colorless liquid with a mild odor, known for its utility in various industrial and manufacturing processes. The chemical formula for N-Butyl lactate is C7H14O3, indicating it comprises seven carbon atoms, fourteen hydrogen atoms, and three oxygen atoms.

Properties

N-Butyl lactate exhibits several physical and chemical properties that make it valuable in different applications. It has a boiling point of approximately 219°C and a melting point of -76°C. Its solubility in water and organic solvents like ethanol and diethyl ether is notable, making it versatile for use in various formulations.

Production

The production of N-Butyl lactate typically involves the esterification of lactic acid with n-butanol in the presence of an acid catalyst. This reaction is an example of Fischer-Speier esterification, a common method for synthesizing esters. The process requires careful control of reaction conditions, including temperature and the molar ratio of reactants, to achieve high yields and purity of the product.

Applications

N-Butyl lactate finds applications across several industries due to its solvent properties and biodegradability. It is used as a solvent in the production of paints, coatings, and inks, where it helps in improving the product's performance and environmental profile. In the pharmaceutical industry, it serves as a solvent and an intermediate in the synthesis of various drugs. Additionally, its application in the cosmetics industry includes its use in formulations where it acts as a humectant and a solvent for active ingredients.

Environmental and Safety Considerations

One of the advantages of N-Butyl lactate is its biodegradability, which makes it an environmentally friendly alternative to traditional petroleum-based solvents. It is generally considered to have low toxicity, but like all chemicals, it requires proper handling and storage to minimize any potential health and safety risks. Safety data sheets (SDS) provide detailed information on handling, storage, and disposal practices to ensure safe use.

Regulatory Status

The regulatory status of N-Butyl lactate can vary by country and region, depending on its applications and concentrations in products. In many cases, it is regulated under chemical inventory laws, such as the European Union's Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) regulation. Manufacturers and users must comply with relevant regulations to ensure the safe production, use, and disposal of N-Butyl lactate.