Purigen and Baking soda - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 08-15-2007, 08:22 PM Thread Starter
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Purigen and Baking soda

When regenerating purigen, can you buffer it using baking soda?

In my chemistry class, one rule of thumb was the throw baking soda onto a surface in which a base or acid was spilled. Or to mix the baking soda with water to make it pasty and apply it to yourself where you got hit.


And baking soda is a salt. So, wouldn't the baking soda neutralize the purigen ENOUGH that a good rinse will take out problems?
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post #2 of 9 (permalink) Old 08-15-2007, 11:27 PM
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Good question for Seachem......
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post #3 of 9 (permalink) Old 08-16-2007, 04:23 AM Thread Starter
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Yah I sent them an email and it seems that my ip address is black listed or something...

Would be nice if someone else emailed them :-D.
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post #4 of 9 (permalink) Old 08-16-2007, 04:25 AM
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post #5 of 9 (permalink) Old 08-16-2007, 05:41 AM
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Why would you want to use that? The process uses bleach to refresh the media then an acid to neutrilize bleach which is a base. Where would the bicarb come into play. Bicarb is a weak base.
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post #6 of 9 (permalink) Old 08-16-2007, 06:16 AM Thread Starter
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Hmm come to think of it, nevermind!!! Na won't bind with OH :-D.

Then why did my teacher say put baking soda to neutralize any kind of spill? I precisely remember wondering WHY the hell it worked on both bases and acids.


Why does it work in the lab then? or is my teacher being kooky.
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post #7 of 9 (permalink) Old 08-16-2007, 05:09 PM
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All baking soda would do is raise kH. Baking soda is a good buffer in a lab setting because it is a very weak base. That is all there is to it. However, it would do nothing for purigen.
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post #8 of 9 (permalink) Old 08-16-2007, 05:31 PM
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ZOMG so smart!
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post #9 of 9 (permalink) Old 08-16-2007, 08:46 PM Thread Starter
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I see. Thanks ianiwane.
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