Nalgene separatory funnels are a safer alternative to glass. They won’t break, chip or shatter amid the bustle and bumps of everyday lab work. Enjoy their light weight and ease of handling. Trust Thermo Scientific Nalgene separatory funnels to be made from the highest quality laboratory-grade polypropylene copolymer (PPCO) and fluoropolymer (FEP) materials for dependably low extractables across a wide variety of lab applications.
Choose polypropylene for its low cost and good chemical compatibility with a wide range of lab chemicals. FEP provides the ultimate in chemical resistance and inertness for the most demanding liquid phase separations. Rely on leak-free performance with our Nalgene leakproof* guarantee.
Which separatory funnels are right for your application?
| Nalgene PPCO Separatory Funnel with Screw Cap | Nalgene FEP Separatory Funnel with Screw Cap |
| Lower cost, milky white, good chemical resistance | Exceptional chemical resistance, better transparency |
 |  |
| Screw-on cap | Screw-on cap |
| Size range 125mL–1000mL | Size range 125mL–2000mL |
| PPCO body w/PP closure | FEP body w/ETFE closure |
| TFE stopcock assembly | TFE stopcock assembly |
| Milky white translucent | Light white haze |
| Autoclavable** | Autoclavable** |
| Complies with Part 21 CFR 177.1520 for food use | Complies with Part 21 CFR 177.1550 for food use |
| BPA-Free | BPA-Free |
| Phthalate-free | Phthalate-free |
General chemical compatibility
| Nalgene PPCO Separatory Funnel with Screw Cap | Nalgene FEP Separatory Funnel with Screw Cap | |
| Acids, dilute or weak | E | E |
| Acids^ strong, concentrated | G | E |
| Alcohols, aliphatic | E | E |
| Aldehydes | G | E |
| Bases/alkali | E | E |
| Esters | G | E |
| Hydrocarbons, aliphatic | G | E |
| Hydrocarbons, aromatic | N | E |
| Hydrocarbons, halogenated | N | E |
| Ketones, aromatic | N | E |
| Oxidizing agents, strong | F | E |
For a more detailed chemical resistance guide by chemical and application temperature, please refer to Chemical resistance guide or request a printed poster for your lab or contact Nalgene Technical Support.
| E | No damage after 30 days constant exposure at 20 oC. |
| G | Little or no damage after 30 days constant exposure at 20oC. |
| F | Some effect after 7 days constant exposure at 20oC. |
| N | Not recommended. Immediate damage may occur. |
*The term “leakproof” applies to Thermo Scientific Nalgene products that meet the following criteria: a) Bottle/flask/funnel closure systems with closures smaller than 100mm, after they are filled with water, inverted, withstand air pressure of 2psig for 2 minutes, and no water escapes; b) Bottle/funnel/flask closure systems of larger than 100mm after they are filled with water, inverted for 15 minutes, and no water escapes. Note: these tests, using other liquids, may not yield the same results. To ensure safe usage, customers are advised to test Nalgene bottles and closures under conditions of their planned applications. Nalgene products are leakproof at ambient temperature and pressure when used with their Nalgene closures.
**Autoclavable except stopcock which is easily removed and chemically sterilized.
^ Except oxidizing acids; for oxidizing acids, see “Oxidizing agents, strong.”
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For a more detailed chemical resistance guide by chemical and application temperature, please refer to the Nalgene Chemical Resistance Wall Chart or contact
technicalsupport@thermofisher.com.
California Proposition 65 Warning: Products manufactured with polycarbonate (PC), polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG) or polystyrene (PS) contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.