BUCHI Syncor Polyvap - Manual (Page 55)

Syncore ® Accessories
version E 53
Solvent Resistance
Acetaldehyde B
Acetone A
Benzene A
Butanol A
Chloroform A
Diethyl ether A
Dimethylformamide A
Dimethylbenzene (Xylol) A
Dioxane A
Acetic acid A
Acetic acid anhydride A
Ethanol A
Ethyl acetate A
Hexane A
Isobutanol A
Isopropanol A
Methanol A
Methylene chloride A
Nitrobenzene A
Phenol A
Propanol A
Sulphuric acid, fuming A
Carbon tetrachloride B
Tetrahydrofurane A
Tolene A
Triethylamine A
Trichloroacetic acid A
Trichloroethane A
Trifluoroacetic acid A
Vinylidene chloride (Dichloroethylene) A
Aqueous hydrogen bromide, saturated A
Aqueous hydrogen chloride, saturated A
Aqueous ammonia solution A
Aqueous caustic soda A
Aqueous nitric acid A
Table 9: Resistance of the perfluorelastomer sealings
Resistance of the perfluorelastomer sealings
A: Very good resistance: Perfluorelastomer may be used
without restrictions
B: Moderate resistance: Sealing made of Perfluorelastomer
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 Per-
fluorelastomer 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
Perfluorelastomer should not be used.
5 Appendix