CHROMAFIL® Syringe Filters – Teflon (PTFE) Polytetrafluorethylene

  • Hydrophobic membranes
  • For nonpolar liquids and gases
  • Extremely resistant towards all kinds of solvents as well as with strong acids or bases
  • This membrane can be made more hydrophilic by first pre-wetting with alcohol followed by flushing with water

Chromafil

Catalog No.DescriptionPrice (USD)
729008Chromafil Syringe Filters, O-20/15 MS PTFE, 0.20um, 15mm diam., yellow/colorless, 100/pk Buy now $129.00
729009Chromafil Syringe Filters, O-45/15 MS PTFE, 0.45um, 15mm diam., colorless/colorless, 100/pk Buy now $129.00
729014Chromafil Syringe Filters, O-20/3, 0.20um, 3mm diam., PP/PTFE, colorless/colorless, 100/pk Buy now $156.00
729015Chromafil Syringe Filters, O-45/3, 0.45um, 3mm diam., PP/PTFE, colorless/colorless, 100/pk Buy now $156.00

Chromafil Xtra

Catalog No.DescriptionPrice (USD)
729207Chromafil Xtra Syringe Filters, PTFE-20/25, 0.20um, 25mm diam., colorless/labelled, 100/pk Buy now $129.00
729207.400Chromafil Xtra Syringe Filters, PTFE-20/25, 0.20um, 25mm diam., colorless/labelled, 400/pk Buy now $515.00
729205Chromafil Xtra Syringe Filters, PTFE-45/25, 0.45um, 25mm diam., colorless/labeled, 100/pk Buy now $129.00
729205.400Chromafil Xtra Syringe Filters, PFTE-45/25, 0.45um, 25mm diam., colorless/labelled, 400/pk Buy now $515.00
729247Chromafil Xtra Syringe Filters, PTFE-100/25 colorless labeled, 100/pk Buy now $129.00
Type Pore Size (µm) Membrane Diameter (mm) Color (Top) Color (Bottom) Standard Pack (Filters/Pack) REF BIG-BOX (Filters/Pack)
Xtra PTFE-20/25 0.20 25 labeled – 100 729207 400
Xtra PTFE-45/25 0.45 25 labeled – 100 729205 400
O-20/15 MS* 0.20 15 yellow colorless 100 729008 800
O-45/15 MS* 0.45 15 colorless colorless 100 729009 800
O-20/3 0.20 3 colorless colorless 100 729014 –
O-45/3 0.45 3 colorless colorless 100 729015 –

*MS= Minispike on filter exit.

CHROMAFIL Disposable Filters

This table lists the chemical compatibility of our CHROMAFIL materials. The chemical compatibility depends on several parameters such as time, pressure and concentration. In most cases, CHROMAFIL filters will have only short contact with a solvent. In these cases they may be used despite limited compatibility. For example, a PTFE filter with PP housing does not liberate any UV-detectable substances during filtration of 5 ml THF, although PP shows only limited resistance towards THF.

INTERACTIVE COMPATIBILITY CALCULATOR

+ Resistant | – Not Resistant | O Limited Resistance

  • MV-Cellulose Mixed Esters
  • CA-Cellulose Acetate
  • RC-Regenerated Cellulose
  • PA-Polyamide
  • PTFE-Polytetrafluoroethylene (Teflon)
  • PVDF-Polyvinylidene difluoride
  • PES-Polyethersulfone
  • PET-Polyester
  • GF-Glass Fiber
  • PP-Polypropylene (Housing Material)

Solvent Material
MV CA RC PA PTFE PVDF PES PET GF PP
Acetaldehyde - - + 0 + + + + 0
Acetic acid, 100% - - - - + + + + + +
Acetone - - + + + + + + + +
Acetonitirle - - + + + + + + + +
Ammonia, 25% - - 0 - + + + 0 + +
Benzene + + + + + 0 + + 0
n-Butanol + + + 0 + + + + + +
Cyclohexane + + + 0 + + + + + +
Dichloromethane + - + - + + - + + -
Diethyl ether 0 0 + + + + + + + 0
Dimethylformamide - - 0 + + - - + + +
1, 4-Dioxane - - + + + 0 - + + 0
Ethanol - + + + + + + + + +
Ethyl acetate - - + + + + + + + 0
Ethylene glycol 0 0 + + + + + + + +
Formic acid, 100% + - 0 - + + + 0 + +
Hydrochloric acid, 30% - - - - + + + - + +
Methanol - - + + + + + + + +
Nitric acid, 65% - - - - 0 0 0 + -
Oxalic acid, 10% aqueous + - + - + + + + +
Petroleum ether + + + + + + + + + +
Phosphoric acid, 80% - - 0 - + 0 + + +
Potassium hydroxide, 1 mol/1 - - 0 + + 0 + 0 + +
2-Propanol + + + + + + + + + +
Sodium hydroxide, 1 mol/1 - - 0 + + 0 0 0 0 -
Tetrachloromethan + - + + + 0 + + 0
Tetrahydrofuran - - + 0 + + - + + -
Toluen + - + + + + + + + -
Trichloroethylene + + + 0 + + + + 0
Trichloromethan + - + - + + - + + -
Urea + + + + + + + + +
Water + + + + + + + + + +
DATA NOT GUARANTEED