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Chemical Compatibility of Membranes

MCE: Mixed Cellulose Ester (Nitrocellulose) CA: Cellulose Acetate PCTE: Polycarbonate PTFE: Teflon CMF: Coated Cellulose Acetate		* : Recommended o : Limited resistance X : Not recommended -- : No data available

Polymer/Product Chemical		MCE	CA	PCTE	PTFE	Supported PTFE	Hydrophilic PTFE	CMF	37 mm Monitor
ACID	Glacial acetic acid	X	X	X	*	*	*	X	X
	10% acetic acid	*	*	*	*	*	*	*	o
	12kmol/m³ Hydrochloric acid (37%, 12N)	X	X	*	*	*	*	X	X
	6kmol/m³ Hydrochloric acid (19%, 6N)	o	X	*	*	*	*	X	o
	12kmol/m³ Nitric acid (53%, 12N)	X	X	*	*	*	o	X	X
	6kmol/m³ Nitric acid (26%, 6N)	o	*	*	*	*	*	X	X
	18kmol/m³ Sulfuric acid (96%, 36N)	X	X	X	*	*	X	X	X
	3kmol/m³ Sulfuric acid (16%, 6N)	o	X	*	*	*	*	X	o
	85% Phosphoric acid	*	X	X	*	*	*	X	o
	5% Boric acid	*	*	*	*	*	*	*	*
	50% Formic acid	o	o	*	*	*	*	o	--
	35% Hydrofluoric acid	X	X	*	*	*	*	X	X
	60% Perchloric acid	*	X	X	*	*	*	X	--
ALKALI	6kmol/m³ Sodium hydroxide (26%, 6N)	X	X	X	*	*	*	X	X
	6kmol/m³ Potassium hydroxide (20%, 6N)	X	X	X	*	*	*	X	X
	6kmol/m³ Aqueous ammonia (11%, 6N)	X	X	X	*	*	*	X	X
ALCOHOL	Methyl alcohol	X	*	*	*	*	*	*	X
	Ethyl alcohol	X	*	*	*	*	*	*	X
	Isopropyl alcohol	o	*	*	*	*	*	*	X
	Isobutyl alcohol	o	*	*	*	*	*	*	X
	Butyl alcohol	*	*	*	*	*	*	*	X
	Glycerine	*	*	*	*	*	*	*	*
	Amyl alcohol	o	*	*	*	*	*	*	o
	Benzyl alcohol	o	X	X	*	*	*	X	o
	Ethylene glycol	X	*	*	*	*	*	*	o
ETHER	Ethyl ether	o	*	*	*	o	*	*	o
	Isopropyl ether	*	*	*	*	*	*	*	X
	Tetrahydrofuran	X	X	X	*	X	*	X	X
	Dioxane	X	X	X	*	*	*	X	X
	Petroleum ether	*	*	*	*	*	*	*	--
ESTER	Methyl acetate	X	X	X	*	*	*	X	X
	Butyl acetate	X	X	*	*	*	*	X	X
	Amyl acetate	X	o	*	*	*	*	o	X
KETONE	Acetone	X	X	X	*	*	*	X	X
	Methylethyl ketone	X	X	X	*	*	*	X	X
	Methyl isobutyl ketone	X	X	X	*	*	*	X	X
	Cyclohexanone	X	X	X	*	*	*	X	X

Product/Polymer
Chemical
MCE
CA
PCTE
PTFE
Supported
PTFE
Hydrophilic
PTFE
COATED
37 mm
Monitor

HYDROCARBON
Benzene
*
*
X
*
*
*
*
X
Toluene
*
*
X
*
*
*
*
X
Xylene
*
*
*
*
*
*
*
X
Hexane
*
*
*
*
*
*
*
X
Gasoline
*
*
*
*
o
*
*
o
Kerosene
*
*
*
*
*
*
*
*
HALOGENATED
HYDROCARBON
Chloroform
*
X
X
*
o
*
X
X
Methyl chloride
X
X
X
*
o
*
X
X
Trichloroethylene
*
*
X
*
*
*
*
X
Tetrachloride ethylene
*
*
*
*
*
*
*
X
Carbon tetrachloride
*
*
X
*
o
*
*
X

AMINE
Aniline
X
X
X
*
*
*
X
X
Dimethyl formamide
X
X
X
*
o
*
X
X
Diethyl acetamide
X
X
X
*
*
*
X
X
Triethanolamine
X
*
X
*
*
*
*
X

CELLOSOLVE
Methyl cellosolve
X
X
X
*
*
*
X
X
Butyl cellosolve
X
*
X
*
*
*
*
X

GAS
Nitrogen
*
*
*
*
*
*
*
X
Hydrogen
*
*
*
*
*
*
*
*
Oxygen
*
*
*
*
*
*
*
*

MISCELLANEOUS
30% Hydrogen peroxide
X
*
*
*
*
*
*
X
Saline solution
*
*
*
*
*
*
*
*
Dimethylsulfoxide
X
X
X
*
*
*
X
X
Nitrobenzene
X
X
X
*
*
*
X
X
Methanol (1) : Chloroform (1)
o
X
X
*
*
*
X
X
Pyridine
X
X
X
*
*
*
X
X
Nitric acid
X
X
X
*
*
*
X
X
Phenol
*
X
X
*
*
*
X
X
Freon
*
*
*
*
*
*
*
*
37% Formaldehyde
o
o
*
*
*
*
o
X
Silicone oil
*
X
*
*
*
*
X
--
n-hexane (95) : Ethyl acetate (5)
X
*
*
*
*
*
*
X
Nitric acid (70) : Distilled water (30)
X
X
X
*
*
*
X
X
Petroleum oil
*
*
*
*
*
*
*
o

* : Recommended
o : Limited resistance
X : Not recommended
-- : No data available

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