It has an anecdotal (meaning some people believe from their own experience or reports from others) link to Alzheimer's Disease, but the FDA has never studied the safety of any human consumption of aluminum containing agents, so we don't really know for sure. It's definitely not a health food, so either way you look at it, you're probably smart to limit the amount you consume.
It is used as a food additive for baked products.
Na3Al(PO4)2 seems reasonable.
The compound with formula Na3PO4 is named "sodium phosphate", "trisodium phosphate", "sodium ortho-phosphate", or "trisodium ortho-phosphate".
Sodium phosphate
NaH2PO4
Na2HPO4
The gram atomic mass of sodium is 22.9898, the formula of the least hydrated form of sodium phosphate is Na3PO4.10 H2O, and the gram formula unit mass of this sodium phosphate is 344.09. Therefore, the mass fraction of sodium in this sodium phosphate is 3(22.9898)/344.09 or about 0.20044, and the grams of sodium in 7.2 grams of this sodium phosphate is 1.44 grams of sodium, to the justified number of significant digits.
The formula for sodium phosphate tribasic is Na3PO4
sodium is Na phosphate is PO43- again, if you meant to ask the formula of the compound sodium phosphate it is Na3PO4
The compound with formula Na3PO4 is named "sodium phosphate", "trisodium phosphate", "sodium ortho-phosphate", or "trisodium ortho-phosphate".
Sodium Tri(poly)phosphate = Na5P3O10
Al2(PO4)3 aluminum phosphate
The formula is NaH2PO4.
Sodium phosphate
NaH2PO4
Na2HPO4
Na3PO4
Sodium has a single positive charge (+), whilst phosphate ions have a 3- charge. To balance out the charges, three sodium ions are needed, so the formula will be Na3PO4.
The gram atomic mass of sodium is 22.9898, the formula of the least hydrated form of sodium phosphate is Na3PO4.10 H2O, and the gram formula unit mass of this sodium phosphate is 344.09. Therefore, the mass fraction of sodium in this sodium phosphate is 3(22.9898)/344.09 or about 0.20044, and the grams of sodium in 7.2 grams of this sodium phosphate is 1.44 grams of sodium, to the justified number of significant digits.