Overview
Diacetone Alcohol (DAA) is an organic compound belonging to the ketone-alcohol family. It is produced industrially through the condensation of acetone. With its dual functional groups, DAA serves as both a solvent and a chemical intermediate in various industrial processes. First commercialized in the early 20th century, DAA gained popularity due to its balanced solvent properties—offering better water miscibility than pure ketones while maintaining good solvency for resins and oils. Its moderate evaporation rate makes it particularly valuable in coating formulations.
Physical and Chemical Properties
Diacetone Alcohol presents as a clear, mildly sweet-smelling liquid with a density slightly lower than water. Its hydroxyl group enables hydrogen bonding, contributing to water miscibility, while the ketone moiety provides organic solubility. The compound shows stability under normal conditions but may decompose at elevated temperatures. A notable characteristic is its reversible dehydration to mesityl oxide when heated with acid catalysts. This property is exploited in some synthetic pathways. DAA has a flash point of 56°C (closed cup), classifying it as a flammable liquid requiring careful handling.
Main Applications
In the coatings industry, DAA serves as a slow-evaporating solvent for lacquers and epoxy resins, helping prevent blushing and improving flow properties. It's particularly valued in wood coatings and automotive refinish products. The printing ink sector utilizes DAA in flexographic and gravure inks for its resin-dissolving capabilities. As a chemical intermediate, DAA is converted to methyl isobutyl ketone (MIBK) via dehydration and hydrogenation. It also finds use in the synthesis of pharmaceuticals and pesticides. Emerging applications include use as a solvent for lithium-ion battery electrolytes due to its high dielectric constant.
Safety and Storage
DAA requires storage in stainless steel or polyethylene containers away from oxidizers and strong acids. Grounding and bonding procedures are essential during transfer due to static electricity risks. Facilities should maintain concentration levels below the OSHA PEL of 50 ppm (240 mg/m³). Personal protective equipment including chemical goggles and nitrile gloves is recommended. In case of spills, absorb with inert material and prevent entry into waterways. While DAA has low acute toxicity, prolonged skin contact may cause defatting and dermatitis. Proper ventilation is crucial in enclosed spaces.
B2B Procurement Guide
Industrial buyers should specify purity requirements (typically 98% minimum) and moisture content (below 0.5%). Technical grade suffices for most solvent applications, while pharmaceutical grades command premium pricing. Bulk purchases (drum quantities or ISO tanks) generally offer 15-30% cost advantages over small containers. Quality verification should include GC analysis for purity and Karl Fischer titration for water content. Leading manufacturers are concentrated in China, Western Europe, and North America. Buyers should confirm REACH or TSCA compliance status for their region and request SDS documentation with each shipment.
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