People use phosphate salts for medicine.
Rectally, phosphate salts are used as a laxative to clean the bowels before surgery or intestinal tests.
More evidence is needed to rate the effectiveness of phosphate salts for these uses.
Heart disease: Avoid using phosphate salts that contain sodium if you have heart disease.
Taking large amounts of phosphate salts might cause calcium levels to become too low.
Replies: Phosphorus as found in waste water is in the form of soluble phosphate salts.
The white phosphorus is then oxidised to phosphoric acid and subsequently neutralised with base to give phosphate salts.
Various phosphate salts have very different pH's so that could be the effect.
I would expect the product is based upon some phosphate salt.
One complication is that some sodas also contain phosphate salts.