Overview
3-Pentanone, commonly referred to as diethyl ketone (DEK), is an organic compound belonging to the ketone family. It is a colorless liquid with a characteristic sweet odor, similar to acetone but less pungent. Industrially, it is valued for its solvent properties and relatively low toxicity compared to other ketones. 3-Pentanone is produced through the oxidation of secondary alcohols or as a byproduct in certain chemical processes. Its balanced evaporation rate and solvency make it a versatile choice for formulations requiring moderate drying times.
Physical and Chemical Properties
3-Pentanone exhibits typical ketone properties, including polarity and the ability to form hydrogen bonds. Its boiling point of 102°C and melting point of -42°C make it suitable for applications requiring a medium-boiling solvent. The compound's density of 0.81 g/cm³ is lower than water, and it is miscible with most organic solvents. Chemically, 3-pentanone is stable under normal conditions but can react with strong oxidizing agents. Its vapor is heavier than air, requiring careful handling to prevent accumulation in low-lying areas. The compound's solubility profile allows it to dissolve many resins and polymers, contributing to its industrial utility.
Main Applications
The primary use of 3-pentanone is as an industrial solvent, particularly in paint, coating, and adhesive formulations. Its ability to dissolve nitrocellulose, resins, and oils makes it valuable in lacquer production. The printing ink industry utilizes DEK for its balanced evaporation rate and solvency power. In chemical synthesis, 3-pentanone serves as a precursor for pharmaceuticals and agrochemicals. It's also employed in extraction processes and as a cleaning agent for precision equipment. Some specialty applications include use in fragrance formulations and as a reaction medium in organic chemistry.
Safety and Storage
As a flammable liquid (Flash point: 12°C), 3-pentanone requires careful storage in approved containers away from heat sources and open flames. Proper grounding is essential during transfer to prevent static discharge. Storage areas should be well-ventilated and equipped with fire suppression systems. Personal protective equipment including chemical-resistant gloves and eye protection should be used when handling. In case of spills, absorb with inert material and ventilate the area. Prolonged skin contact should be avoided as it may cause defatting and dermatitis. Always follow local regulations for hazardous material handling and disposal.
B2B Procurement Guide
When sourcing 3-pentanone, verify the supplier's certification for chemical manufacturing standards. Bulk shipments (typically in 200kg drums or ISO tanks) generally offer better pricing but require appropriate storage facilities. Technical grade (≥98% purity) is commonly available for industrial applications. Consider transportation logistics as DEK is classified as a hazardous material. Request Material Safety Data Sheets (MSDS) and certificates of analysis for each batch. Some manufacturers offer custom packaging solutions for specific application requirements. Establish long-term supply agreements to mitigate price volatility in the solvent market.
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