Amphiprion
Premium Member
I managed to find 50 lbs 99% min. bicarbonate for relatively cheap. What, if any variation is there on the two part recipe as compared with Arm & Hammer?
Purity of NaHCO3 for 2 part
- Thread starter Amphiprion
- Start date
That should be adequately pure and it would be used just like the recipe in the article for baking soda, with the possible caveat that I am not sure of the bulk density of the material you have, so while the weight based recipe will be exact, the volume will be an approximation. 
Amphiprion
Premium Member
Ok. What is the relative purity of Arm and Hammer? ~100%?
It is not so much the % impurity as what the impurities are, and food grade usually limits some of the worst possibilities. But yes, it is close to 100%.
Amphiprion
Premium Member
It's swimming pool-grade, so it can't be absolutely horrible (can't imagine it being recommended, especially knowing little kids get big mouthfuls of water).
*edit* I may have to eat my words. I found some specs (generalized) on 'technical' grade (which is what this supposedly is) and it can contain up to 30 ppm of copper!!!!! I may have to pass.
*edit* I may have to eat my words. I found some specs (generalized) on 'technical' grade (which is what this supposedly is) and it can contain up to 30 ppm of copper!!!!! I may have to pass.
Last edited:
Well, let's hope it is good enough. 
Amphiprion
Premium Member
See edit 
!
!
I'd probably avoid it then.
Amphiprion
Premium Member
<a href=showthread.php?s=&postid=9313385#post9313385 target=_blank>Originally posted</a> by Randy Holmes-Farley
I'd probably avoid it then.
Already there
. I found an even better deal (at a bakery wholesaler) for the 12 lb arm and hammer baking soda at $4 per bag.
:thumbsup:
Happy reefing.
Happy reefing.
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