Description
Specifications Table
Product Name – 3-Pentanone (Diethyl Ketone)
Quantity/Pack Size – 100 ml
Form – Liquid
Grade – Laboratory Reagent (LR)
Application – Solvent for organic synthesis, extractions, chromatography
Product Overview
3-Pentanone, commonly known as Diethyl Ketone, is a high-purity laboratory solvent with a minimum assay of 98%. This colorless, flammable liquid features a characteristic ketonic odor and is highly miscible with organic solvents like ethanol, ether, and chloroform. Its moderate boiling point (102°C) and low viscosity make it an excellent choice for applications requiring efficient solvent evaporation without thermal degradation. The compound’s polar yet aprotic nature allows it to dissolve a wide range of organic and inorganic substances, making it particularly useful in extraction processes and as a reaction medium in organic synthesis. Its stability under standard lab conditions ensures consistent performance in analytical techniques such as thin-layer chromatography (TLC) and gas chromatography (GC). The reagent-grade purity minimizes interference in sensitive applications, while its low water content (<0.1%) prevents hydrolysis-related complications. As a mid-chain ketone, 3-Pentanone offers a balanced profile of volatility and solvency, bridging the gap between smaller ketones like acetone and higher-boiling solvents. Its compatibility with glass, stainless steel, and most polymers allows for flexible storage and handling in laboratory settings.
FAQs
1. What is the shelf life of 3-Pentanone when stored properly?
When stored in a tightly sealed container away from moisture, heat, and direct sunlight, 3-Pentanone maintains its specified purity for up to 24 months from the date of manufacture. Always check for signs of contamination or evaporation before use.
2. Can 3-Pentanone be used as a substitute for acetone in cleaning applications?
While 3-Pentanone shares some solvent properties with acetone, its higher boiling point and different polarity profile make it less volatile. It may require longer evaporation times and could leave residual traces, so compatibility testing is recommended for specific cleaning protocols.
3. What precautions should be taken when handling 3-Pentanone in a lab?
Use in a well-ventilated area or fume hood due to its flammable nature and potential vapor inhalation risks. Wear nitrile gloves, safety goggles, and a lab coat to prevent skin contact. Avoid open flames, sparks, or heat sources, and store in flame-proof cabinets when not in use.
4. How does the purity of this 3-Pentanone compare to ACS-grade versions?
This laboratory reagent grade (LR) offers ≥98% purity, which is suitable for most general lab applications. ACS-grade typically meets stricter impurity limits (e.g., <0.05% water, <0.01% non-volatile residue) and is certified for analytical standards, but the difference is negligible for routine synthesis or extractions.
5. Is 3-Pentanone compatible with plastic labware like polypropylene or PTFE?
It is generally compatible with polypropylene (PP) and polytetrafluoroethylene (PTFE) for short-term use, but prolonged exposure may cause swelling or leaching. For long-term storage or reactions, glass or stainless steel containers are preferred to maintain integrity and purity.
