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[Mind]

Just saw a couple of items regarding phosphates today:

Inorganic phosphate food additives linked to lung cancer proliferation in mice.

and

Increased inorganic phosphate induces human endothelial cell apoptosis in vitro

Anyone know a good place to look for a clear definition between organic and inorganic phosphates?

A "short" list of food additives containing phosphate in the U.S. and Canada

Acetylated distarch phosphate
Acid calcium phosphate
Acid sodium pyrophosphate
Ammonium phosphate dibasic
Ammonium phosphate monobasic
Ammonium phosphatides
Ammonium polyphosphates
Ammonium salts of phosphatic acid
Bone phosphate, edible
Calcium hydrogen orthophosphate
Calcium phosphate dibasic
Calcium phosphate monobasic
Calcium phosphate tribasic
Calcium polyphosphates
Dicalcium diphosphate
Disodium dihydrogen diphosphate
Disodium dihydrogen pyrophosphate
Disodium hydrogen orthophosphate
Distarch phosphate
Edible bone phosphate
Guanosine 5' - (disodium phosphate)
Hydroxypropyl distarch phosphate
Inosine 5' - (disodium phosphate)
Magnesium hydrogen dibasic
Magnesium hydrogen phosphate
Magnesium hydrogen tribasic
Monocalcium orthophosphate
Monostarch phosphate
Orthophosphoric acid
Phosphated distarch phosphate
Phosphoric Acid
Polyphosphates, ammonium
Polyphosphates, calcium
Polyphosphates, potassium and sodium
Potassium dihydrogen orthophosphate
Potassium phosphate dibasic
Potassium phosphate monobasic
Potassium phosphate tribasic
Potassium polyphosphates
Potassium tripolyphosphate
Riboflavin-5'-phosphate sodium
Sodium acid pyrophosphate
Sodium aluminium phosphate, acidic
Sodium aluminium phosphate, basic
Sodium dihydrogen orthophosphate
Sodium phosphate dibasic
Sodium phosphate monobasic
Sodium phosphate tribasic
Sodium polyphosphates
Sodium pyrophosphate
Sodium tripolyphosphate
Tetrapotassium diphosphate
Tripotassium orthophosphate
Tetrasodium diphosphate
Trisodium diphosphate
Trisodium orthophosphate

[niner]

Just saw a couple of items regarding phosphates today:

Inorganic phosphate food additives linked to lung cancer proliferation in mice.

and

Increased inorganic phosphate induces human endothelial cell apoptosis in vitro

Anyone know a good place to look for a clear definition between organic and inorganic phosphates?

That's interesting. Another reason not to drink Coke. Organic phosphate would be any compound where the phosphate was bound to a carbon atom, generally speaking. It could also be called a phosphate ester. It would have the general formula O=P(OR)3 where at least one R is carbon and the other R's are either carbon, hydrogen, or anionic. An easy way to recognise inorganic phosphate is when you see a positive ion: sodium, potassium, calcium, magnesium, or ammonium as the only R group. Phosphoric acid, where all R's are hydrogen, is also considered inorganic. "Bone phosphate" is just calcium phosphate that was derived from bone, so it's inorganic, even if they call it "edible". You could have a mixed organic/inorganic form where one of the R's was carbon and another was a positive ion. I'm not sure how a mixed phosphate would act for this particular consideration, but I would at least call it organic. From the above list, I would consider the following to be organic phosphate.

Acetylated distarch phosphate
Distarch phosphate
Guanosine 5' - (disodium phosphate)
Hydroxypropyl distarch phosphate
Inosine 5' - (disodium phosphate)
Monostarch phosphate
Phosphated distarch phosphate
Riboflavin-5'-phosphate sodium