CHROMAFIL® syringe filters
Chemical compatibility of filter materials

The following table lists the chemical compatibility of our CHROMAFIL materials. The chemical compatibility depends on several parameters such as time, pressure, temperature and concentration. In most cases, CHROMAFIL filters will have only short contact with a solvent.

In these cases they may be used despite of 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.

Solvent	Material
	MV	CA	RC	PA	PTFE	PVDF	PES	PET	GF	PP
Acetaldehyde	–	–		o						o
Acetic acid, 100 %	–	–	–	–
Acetone	–	–				–	–
Acetonitrile	–	–
Ammonia, 25 %	–	–	o	–				o
Benzene						o				o
n-Butanol				o
Cyclohexane				o
Dichloromethane		–		–			–			–
Diethyl ether	o	o								o
Dimethylformamide	–	–	o			–	–
1,4-Dioxane	–	–				o	–			o
Ethanol	–
Ethyl acetate	–	–								o
Ethylene glycol	o	o
Formic acid, 100 %		–	o	–				o
Hydrochloric acid, 30 %	–	–	–	–				–
Methanol	–	–
Nitric acid, 65 %	–	–	–	–	o	o		o		–
Oxalic acid, 10 % aqueous		–		–
Petroleum ether
Phosphoric acid, 80 %	–	–	o	–		o
Potassium hydroxide, 1 mol/l	–	–	o			o		o
2-Propanol
Sodium hydroxide, 1 mol/l	–	–	o			o	o	o	o
Tetrachloromethane		–				o				o
Tetrahydrofuran	–	–		o			–			o
Toluene		–								o
Trichloroethene				o						o
Trichloromethane		–		–			–			–
Urea
Water
Xylene						o				o
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 fibre, PP = polypropylene (housing material)

Data not guaranteed