1,12-Dodecanediol[2]
Overview
1,12-Dodecanediol is an organic compound belonging to the class of long-chain aliphatic diols. Its linear C12 structure with terminal hydroxyl groups makes it a versatile intermediate in chemical synthesis. Industrially, it is produced via hydrogenation of the corresponding diacid or diester. The compound's symmetry and purity are critical for polymerization applications, where it serves as a chain extender or crosslinking agent.
Physical and Chemical Properties
As a waxy solid at room temperature, 1,12-Dodecanediol exhibits low volatility and good thermal stability up to 200°C. The hydroxyl groups participate in typical alcohol reactions like esterification and ether formation. Its hydrophobic nature (logP ≈ 4.5) limits water solubility but enhances compatibility with organic matrices. The melting point range (78-82°C) allows for easy handling in molten state during industrial processing.
Main Applications
In polyurethane production, this diol contributes to flexible segment formation, improving elastomer properties. It's also used in specialty polyester resins for coatings and adhesives. The cosmetic industry utilizes it as a non-greasy emollient and viscosity modifier. Industrial applications include synthetic lubricant formulations and as a precursor for surfactants with balanced hydrophilicity.
Safety and Storage
Classified as non-hazardous under normal handling conditions, the material may cause mild eye or skin irritation. Dust formation should be minimized during processing. Recommended storage is in sealed containers below 30°C. Shelf life typically exceeds 2 years when protected from moisture and oxidation. Incompatible with strong acids and oxidizing agents.
B2B Procurement Guide
Bulk purchases (ton quantities) often attract 15-20% price reductions. Technical grade (≥95%) suffices for most industrial uses, while cosmetic applications require higher purity (≥99%). Leading manufacturers include BASF, Evonik, and Chinese producers like Sinopec. Supply chain verification is advised due to occasional substitution with cheaper C14/C16 analogs.
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