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BUCHI Syncor Polyvap User Manual

Page 53

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Syncore

®

Accessories

version E

51

Resistance of FPM

A: Very good resistance: FPM may be used without rest-

rictions

B: Moderate resistance: Sealing made of FPM may swell.

Sealings may generally be used, but may under some
circumstances have to be replaced after being used
several times.

C: Poor resistance: Sealing deform. The sealings of FPM

should be used only to a limited extent. We recommend
that the sealings be tested beforehand (softening or
wetting the sealing discs).

D: Very poor resistance: Sealing deform. The sealing of

FPM should not be used.

Solvent

Resistance

Acetaldehyde

D

Acetone

D

Benzene

B

Butanol

A

Chloroform

B

Diethyl ether

D

Dimethylformamide

C

Dimethylbenzene (Xylol)

A

Dioxane

C

Acetic acid

D

Acetic acid anhydride

D

Ethanol

B

Ethyl acetate

D

Hexane

A

Isobutanol

A

Isopropanol

A

Methanol

A

Methylene chloride

C

Nitrobenzene

B

Phenol

A

Propanol

A

Sulphuric acid, fuming

A

Carbon tetrachloride

A

Tetrahydrofurane

D

Toluene

A

Triethylamine

B

Trichloroacetic acid

C

Trichloroethane

A

Trifluoroacetic acid

D

Vinylidene chloride (Dichloroethylene)

B

Aqueous hydrogen bromide, saturated

A

Aqueous hydrogen chloride, saturated

B

Aqueous ammonia solution

C

Aqueous caustic soda

B

Aqueous nitric acid

B

Table 7: Resistance of the FPM sealings

5 Appendix

This manual is related to the following products: