Originally Posted by
reefreak29
ok candycane i work in a lab and got everyone together on this ,we found that carbon does not have phos in it , but it does get a false positive when doing a titration with color end point , (we also get this if were checking cl2 and theres to much starch in the water) anyhow now there are 2 kinds of phsphates to test for and when we ran a specialized test to test for phosphates in a cooking methode using standard methods we did not find a trace of complex phos or simple phos .
Let me get the number of this "lab" that you work at. I would like to call them and dicuss the possibilty of molecular corence breakdown and find out why it was not detected. Did they try every possible (even symbiotic) cellular restructuring of the compound into to different mollecular ionization. Here ya go, fart around with this a little bit "lab man".
H3PO4 ⇌ H+ + H2PO4−
H2PO4− ⇌ H+ + HPO42−
HPO42− ⇌ H+ + PO43−
the corresponding constants at 25°C (in mol/L)
PO43− and HPO42− are in significant amounts.
H2PO4− and HPO42− (62% H2PO4−, 38% HPO42−
. (pH=7.4), this (61% HPO42−, 39% H2PO4−
.
H2PO4−. HPO42− and PO43− are practically absent.
This is why PH is effected. Mess around with that for a bit and get back to me when you get it finished. You have about 15 minutes, with your "lab" that shouldnt be a problem.