DURAN Separating Funnel 21013441 500 mL
The DURAN Separating Funnel 21013441 (500 mL) is engineered for reliable liquid–liquid extraction and phase separation in analytical, synthetic, and research laboratories. Its conical geometry supports clean, sharp phase boundaries between immiscible liquids, reducing cross-contamination.
Constructed from DURAN borosilicate glass 3.3, the funnel resists chemical corrosion, thermal stress, and mechanical wear. The PTFE (Teflon) key stopcock provides smooth, low-friction flow control without the need for grease or lubricant, while the ground glass stopper ensures a tight, secure seal during mixing or shaking.
This 500 mL model meets DIN/ISO glassware standards and supports reliable, long-term use in demanding laboratory environments, offering both chemical resistance and handling precision.
Key Specifications
| Parameter | Value |
|---|---|
| Catalogue Number | 21013441 |
| Capacity | 500 mL |
| Shape | Conical Separatory Funnel |
| Material (Body) | DURAN Borosilicate Glass 3.3 |
| Stopcock | PTFE key (Teflon) |
| Stopper | Ground Glass |
| Autoclavable | Yes (glass parts) |
| Standard | DIN / ISO |
| Application | Liquid–liquid extraction, solvent separation |
Applications
Separation of immiscible solvent phases (aqueous + organic)
Solvent extraction and washing
Purification and phase transfer in synthesis
Analytical, pharmaceutical, research, and teaching labs
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