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I cannot say for certain so take my advice with a grain of salt, but if you cannot use PTFE, than HDPE is almost as good. Very few chemicals I have ever used have ever interacted with it and if you need something unreactive, HDPE is a pretty safe bet on top of being abundantly available. PET, although very transparent, is very hit and miss when it comes to ...

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Check if you may skip using elemental bromine as starting material altogether. An alternative approach may be running the bromination in a heterogenic, biphasic setup with the couple $\ce{NaBrO3/NaHSO3}$ in water (e.g., 1998JOrgChem6023, 2000OrgProcRes Dev.30), or $\ce{NaBr}$ / sodium perborate (e.g., 1998SynthCommun925), or pyridinium tribomide (e.g.,...

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The only case I know of where activated carbon causes reduction at room temperature would be filtration of ozone, $\ce{O3}$. Even fluorine will not oxidize plain carbon: Carbon is stable in a fluorine atmosphere up to about $\pu{400 ^\circ C}$ . Oh, well perhaps dioxygen difluoride, $\ce{FOOF}$, could also oxidize carbon (or could be reduced by carbon, ...

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In short: Do not attempt a direct connection of the PFTE hose with the glass. Instead (assuming the tubing shall transfer gases with little pressure only): Because to the (compared to silicon) lesser flexibility of the tubings made from PFTE, you should consider to use glassware with threaded joints with detachable connectors. This a theme already seen with ...

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