NO3:PO4-x and Alkalinity

[cosmith71]

Can the acetic acid in NO3 PO4-x contribute significantly to alkalinity? Randy has an article that seems to suggest so.

--Colin

 

[recess62]

Following

 

[Randy Holmes-Farley]

When added as acetic acid, it slightly "depletes" alkalinity until the acetate is consumed by bacteria, giving back the alkalinity.

When added as acetate, it adds slightly to alkalinity when dosed, and adds more when consumed.

So no organic carbon dosing product that I know of should result in long term lowering of alk, and some may raise it.

 

[cosmith71]

OK, thanks! NO3PO4x is acetic acid and methanol, so it wouldn't explain my high alkalinity problems.

 

[Randy Holmes-Farley]

OK, thanks! NO3PO4x is acetic acid and methanol, so it wouldn't explain my high alkalinity problems.

That's correct that it would not. Ethanol is also a main component of NOPOX, much more than methanol.

 

[cosmith71]

Ah, did not realize that. It's not on the MSDS! I guess I should look up the DIY recipes and save some money.

Thanks again!

--Colin

 

[Randy Holmes-Farley]

It is mostly acetic acid (as in vinegar) and ethanol (as in vodka) plus small amounts of isopropanol and methanol. Methanol is likely listed because it is more toxic than ethanol or isopropanol.

 

[cosmith71]

I see! I found a recipe. I'll try a home brew batch next time.

Thanks again!

--Colin

 

[Randy Holmes-Farley]

Your'e welcome.

Happy Reefing.

 

[joaocdestro]

I see! I found a recipe. I'll try a home brew batch next time.

Thanks again!

--Colin

Can you tell-me the recipe?

 

[jd371]

Can you tell-me the recipe?

375 ml 80 proof vodka
500 ml vinegar (5% acetic acid)
125 ml RO/DI water

 

[joaocdestro]

375 ml 80 proof vodka
500 ml vinegar (5% acetic acid)
125 ml RO/DI water

and about: small amounts of isopropanol and methanol?

 

[jd371]

I got this from another site and that's all that's listed in the recipe. I'll be mixing up some and using it myself as soon as the Nopox is finished. I have all the ingredients anyway so why not make my own.

 

[cosmith71]

375 ml 80 proof vodka
500 ml vinegar (5% acetic acid)
125 ml RO/DI water

Yup, that's it.