Overview
2-Decanone, also known as methyl octyl ketone, is a medium-chain ketone widely used in industrial and flavoring applications. It is a colorless to pale yellow liquid with a characteristic fruity odor, making it suitable for perfumery and food additives. The compound is synthesized through the oxidation of secondary alcohols or via ketonic decarboxylation of fatty acids. As a solvent, 2-decanone is valued for its ability to dissolve resins, waxes, and oils. Its stability and low volatility make it a practical choice for formulations requiring prolonged evaporation rates. In B2B markets, it is typically supplied in drums or bulk containers, with purity levels ranging from 98% to 99.5%.
Physical and Chemical Properties
2-Decanone has a molecular weight of 156.27 g/mol and a density of 0.82-0.83 g/cm³. It boils at 209-211°C and melts at approximately -20°C. The compound is hydrophobic, with negligible solubility in water but good miscibility in ethanol, ether, and other organic solvents. Its fruity odor is detectable at low concentrations, and it exhibits moderate flammability (flash point around 76°C). Chemically, 2-decanone is stable under normal conditions but may react with strong oxidizing agents. Its low vapor pressure reduces workplace exposure risks, though proper ventilation is still recommended.
Main Applications
In the food industry, 2-decanone serves as a flavoring agent for dairy, fruit, and nut products due to its creamy, citrus-like aroma. It is listed under FEMA GRAS (Generally Recognized As Safe) for use in edible formulations. Industrially, the compound functions as a high-boiling solvent for coatings, inks, and cleaning formulations. Its slow evaporation rate aids in film formation and leveling. Additionally, 2-decanone is a precursor in organic synthesis, particularly for producing esters and other ketone derivatives used in fragrances and pharmaceuticals.
Safety and Storage
As a flammable liquid, 2-decanone requires storage in approved containers away from heat and open flames. OSHA recommends using explosion-proof equipment in handling areas. Personal protective equipment (PPE) such as gloves and goggles should be worn to prevent skin and eye irritation. In case of spills, absorb with inert materials like sand or vermiculite. Dispose of contaminated materials according to local regulations. Shelf life typically exceeds two years when stored in tightly sealed containers under nitrogen blanket to prevent oxidation.
B2B Procurement Guide
When sourcing 2-decanone, confirm the CAS number (693-54-9) to avoid counterfeit or mislabeled products. Reputable suppliers provide certificates of analysis (CoA) detailing purity, water content, and residual solvents. Bulk buyers (100kg+) may negotiate prices, especially for 99%+ purity grades. Consider freight costs—shipping as a hazardous material (UN 1224) incurs additional fees. Just-in-time procurement is advisable due to flammable storage requirements. For regulatory compliance, ensure SDS documentation meets GHS and regional chemical inventory standards (e.g., REACH, TSCA).
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