propane13diol

Propane-1,3-diol, also known as 1,3-propanediol or trimethylene glycol, is a chemical compound with the formula CH2(CH2OH)2. It is a colorless, viscous liquid that is miscible with water and soluble in many organic solvents. Propane-1,3-diol is a diol, meaning it has two hydroxyl (-OH) functional groups.

Historically, propane-1,3-diol was produced through petrochemical routes, primarily from acrolein. However, more recent advancements have focused on bio-based production methods. These fermentation processes utilize renewable feedstocks, such as corn sugar, to produce propane-1,3-diol through the action of genetically engineered microorganisms. This bio-based approach is often highlighted for its sustainability advantages.

Propane-1,3-diol finds a variety of applications. One of its primary uses is as a monomer in the production of polymers, most notably polytrimethylene terephthalate (PTT). PTT is a polyester used in textiles, carpets, and other applications due to its desirable properties like resilience and stain resistance. Propane-1,3-diol also serves as a humectant, solvent, and intermediate in the synthesis of other chemicals, including cosmetics, personal care products, and industrial fluids. Its low toxicity and biodegradability are factors contributing to its use in certain consumer products.