December 28, 2024, 09:58:14 PM
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Topic: An Amazing Experiment With Alum  (Read 8241 times)

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Offline Ballistic

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Re: An Amazing Experiment With Alum
« Reply #15 on: April 04, 2016, 08:25:33 AM »
OK! I'm pleased my "guess work" kinda helped out there. I did happen to know that you can make alum blocks out of Ammonium Alum, and as I have tonnes of experience sourcing chemistry bits through unusual channels, I completely aware how liberal with the facts retailers are.

Offline merk

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Re: An Amazing Experiment With Alum
« Reply #16 on: May 02, 2016, 02:57:36 AM »
Hi everyone.
Alum is a coagulant agent that using for water treatment. When you add some alum to water Al+3 and SO4-2 dissolves in water, Al+3 gets the OH from H2O and releases H+
so an Al(OH)3 forms. That Al(OH)3 is an insoluable gel. When alum turns an Al(OH)3 gel, its not possible to react with Sodium Carbonate

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