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Topic: 33% HBr in Acetic acid procedure  (Read 2051 times)

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Offline sravan

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33% HBr in Acetic acid procedure
« on: February 15, 2019, 01:20:20 AM »
Hi there

I am in urgent need of 33% HBr in acetic acid for a reaction (not 48% HBr in water). I want to prepare on my won using HBr and AcOH in lab, as i don't have time to wait from commercial sources.

Thanks!!
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Offline rolnor

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Re: 33% HBr in Acetic acid procedure
« Reply #1 on: February 17, 2019, 10:45:05 AM »
I would drip conc. HBr (aq) on P2O5 and bubble the formed HBr-gas into cold HOAc.
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Offline zarhym

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Re: 33% HBr in Acetic acid procedure
« Reply #2 on: February 17, 2019, 10:53:21 PM »
Quote from: rolnor on February 17, 2019, 10:45:05 AM
I would drip conc. HBr (aq) on P2O5 and bubble the formed HBr-gas into cold HOAc.

I will add an additional HBr absorption device to absorb excess gas.
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