Comparing E338 - Phosphoric acid vs E515 - Potassium sulphates
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Found in 4,566 products
Found in 37 products
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Search volume over time
Interest over time for 4 keywords in U.S. during the last 10 years.
Interest over time for 4 keywords in U.S. during the last 10 years.
Popular questions
Is phosphoric acid bad for you?
At permitted food levels it’s considered safe (GRAS in the U.S.; EFSA sets a group ADI for phosphates of 40 mg/kg bw/day as phosphorus). Overconsumption—especially via acidic soft drinks—can contribute to dental enamel erosion, and high phosphate intakes may be a concern for people with kidney disease.
Is phosphoric acid a strong acid?
No—it's a weak, triprotic acid (pKa ≈ 2.15, 7.2, 12.3), though concentrated solutions are corrosive.
What is phosphoric acid used for?
In foods it’s used as an acidulant to add tartness and control pH (e.g., in colas) and as a sequestrant/antioxidant to stabilize color and flavor.
What does phosphoric acid do to the body?
It dissociates into phosphate ions, which are essential for bones and energy metabolism, while the acid load is buffered and excreted. High intakes from acidic drinks can erode tooth enamel, and excess phosphate may be problematic in kidney disease or with low calcium intake.
What is the formula for phosphoric acid?
H3PO4.
How much potassium is in glucosamine sulfate potassium chloride?
In the common “glucosamine sulfate 2KCl” form, potassium is about 13% by weight—so 1500 mg of the salt provides roughly 190–200 mg of potassium; check your product’s label for the exact amount.
How to use potassium sulfate fertilizer?
Apply according to a soil test, as potassium sulfate supplies about 50% K2O and 17–18% sulfur; it can be broadcast and incorporated, side‑dressed, or fertigated and is preferred where chloride must be limited. Always follow local agronomic guidance and the product label to avoid overapplication.
Is potassium sulfate soluble?
Yes—potassium sulfate is moderately soluble in water (about 11 g per 100 g water at 25°C), with solubility increasing at higher temperatures; it is essentially insoluble in ethanol.
What is aluminum potassium sulfate?
Aluminum potassium sulfate (potassium alum, KAl(SO4)2·12H2O) is a double sulfate salt used as a firming agent, mordant, and astringent; as a food additive it is listed separately from potassium sulfate (E522 vs. E515).
What is potassium aluminum sulfate?
Potassium aluminum sulfate—potassium alum, KAl(SO4)2·12H2O—is the same compound as aluminum potassium sulfate, a double salt used as a firming agent and pickling “alum,” distinct from potassium sulfate (E515).