Perma Pure has experience with the retention and selectivity with a wide range of chemicals and compounds. Below is a list of common chemicals that we have performance and selectivity information for. This information has been collected from our customers and represents our collective experience drying gas streams with Nafion™ based dryers. We welcome additions and corrections to the list. Contact Us with your experience.
| Analyte | Retention within Nafion |
| Ammonia | Variable losses in the form of ammonium hydroxide |
| Ammonium Hydroxide | Over 90% loss |
| Acetaldehyde | Variable loss |
| Acetic Acid | Over 90% loss due to acid catalysis |
| Acetone (Dimethyl ketone) | Over 90% loss |
| Acetonitrile (Methyl Cyanide) | 75% loss |
| Acrolein (vinyl aldehyde) | Variable losses |
| Anisole | 100% Retained in the Sample |
| Benzaldehyde | 75% loss |
| Benzene | 100% Retained in the Sample |
| Benzonitrile (Phenyl Cyanide) | 50% loss |
| Boron Trifluoride | 100% Retained in the Sample |
| Bromoform | 100% Retained in the Sample |
| Carbon Dioxide | 100% Retained in the Sample |
| Carbon Disulfide | 100% Retained in the Sample |
| Carbon Monoxide | 100% Retained in the Sample |
| Chlorine | 100% Retained in the Sample |
| Chloroethane | 100% Retained in the Sample |
| Chloroform | 100% Retained in the Sample |
| Crotonaldehyde | Over 90% loss |
| Cumene | 100% Retained in the Sample |
| Diacetyl | Over 90% loss |
| Diethyl carbitol | Variable losses |
| Dimethylacetamide | Over 90% loss |
| Dioxane | OVer 90% loss |
| Dimethylformamide (DMF) | Over 90% loss |
| DMS | 100% Retained in the Sample |
| DMSO | Over 90% loss |
| Ethane | 100% Retained in the Sample |
| Ethanol | Over 90% loss |
| Ethyl acetate | 15% loss |
| Ethyl amyl ketone | 20% loss |
| Ethylbenzene | 100% Retained in the Sample |
| Ethyl ether | Over 90% loss |
| Ethylene | 100% Retained in the Sample |
| Ethylene oxide | 50% loss |
| Fluorine | 100% Retained in the Sample |
| Fluorobenzene | 100% Retained in the Sample |
| Formaldehyde | Variable loss |
| Formic acid | Variable loss |
| Helium | 100% Retained in the Sample |
| Heptane | 100% Retained in the Sample |
| Hexane | 100% Retained in the Sample |
| Hydrogen | 100% Retained in the Sample |
| Hydrogen Chloride | 100% Retained in the Sample, high purge flow required |
| Hydrogen Cyanide | 100% Retained in the Sample |
| Hydrogen Fluoride | 100% Retained in the Sample |
| Hydrogen Sulfide | 100% Retained in the Sample |
| Isopropyl Benzene | 100% Retained in the Sample |
| Isobutyl acetate | Over 90% loss |
| Isovaleric acid | Variable losses |
| MEK | Over 90% loss |
| Mesitylene | 100% Retained in the Sample |
| Methane | Retained |
| Methanol | Over 90% loss |
| Methyl Acetate | 100% Retained in the Sample |
| Methyl Bromide | 100% Retained in the Sample |
| Methyl Chloride | 100% Retained in the Sample |
| Methyl isobutyl ketone (MIBK) | Over 90% loss |
| Methyl Methacrylate | 100% Retained in the Sample |
| Methyl Nitrate | Variable losses |
| Methyl Sulfide | 100% Retained in the Sample |
| Nitrobenzene | 30% loss |
| Nitrogen | 100% Retained in the Sample |
| Nitrogen dioxide | 100% Retained in the Sample |
| Octane | 100% Retained in the Sample |
| Oxygen | 100% Retained in the Sample |
| Ozone | 100% Retained in the Sample |
| Propane | 100% Retained in the Sample |
| Phosgene | 100% Retained in the Sample |
| Propionic acid | Variable losses |
| Propylene | 100% Retained in the Sample |
| Propylene oxide | 25% loss |
| Pyridine | 100% Retained in the Sample |
| Sulfur Dioxide | 100% Retained in the Sample |
| Tetrahydrofuran | Over 90% loss |
| Thiosinamine | Over 90% loss |
| Toulene | 100% Retained in the Sample |
| Trichloroethene (TCE) | 100% Retained in the Sample |
| Water | Over 90% loss |
| Xylene | 100% Retained in the Sample |