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Topic: Lewis acids  (Read 10391 times)

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Offline onefear

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Re: Lewis acids
« Reply #15 on: August 28, 2009, 06:25:39 PM »
ahhh yes poland that is quite a bit away from america haha

thanks i've got a fume cupboard so im ok for poisonous fumes.
The only tricky bit would be keeping it in liquid form
« Last Edit: August 28, 2009, 06:55:26 PM by onefear »

Offline onefear

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Re: Lewis acids
« Reply #16 on: August 28, 2009, 06:35:06 PM »
so how do you remove it from solution?. The only Sulphuric acid i know is always in an aqueous solution.
In it's concentrated form it is a lewis acid yes?, and can it be measured with the pH scale?.

Offline onefear

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Re: Lewis acids
« Reply #17 on: August 28, 2009, 07:11:38 PM »
hmm ok so i've went and done some research
found out aboout anhydrous sulphuric acid, but i can't find out how to make any.
Can you help me out please
Thanks

Offline Borek

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Re: Lewis acids
« Reply #18 on: August 29, 2009, 02:46:21 AM »
Time for shopping most likely.

OTOH, you may also try acetic acid - glacial acid (that is, one without water, that can be easily bought) behaves similarly:

[CH3COO-][CH3COOH2+]=10-15.2

Of all substances listed so far this is probably easiest to find, and most safe.

Other substances to consider - ethanol:

[C2H5O-][C2H5OH2+]=10-18.9

and methanol:

[CH3O-][CH3OH2+]=10-16.7

Both should be easy to find in anhydrous form.

Note, that even if these substances are bought or prepared anhdyrous, just opening the jar/bottle means contaminating them with water.
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