E338 - Àcid fosfòric

Funcions: Antioxidant, Segrestant

Phosphoric acid -also known as orthophosphoric acid or phosphoricV acid- is a weak acid with the chemical formula H3PO4. Orthophosphoric acid refers to phosphoric acid, which is the IUPAC name for this compound. The prefix ortho- is used to distinguish the acid from related phosphoric acids, called polyphosphoric acids. Orthophosphoric acid is a non-toxic acid, which, when pure, is a solid at room temperature and pressure. The conjugate base of phosphoric acid is the dihydrogen phosphate ion, H2PO−4, which in turn has a conjugate base of hydrogen phosphate, HPO2−4, which has a conjugate base of phosphate, PO3−4. Phosphates are essential for life.The most common source of phosphoric acid is an 85% aqueous solution; such solutions are colourless, odourless, and non-volatile. The 85% solution is a syrupy liquid, but still pourable. Although phosphoric acid does not meet the strict definition of a strong acid, the 85% solution is acidic enough to be corrosive. Because of the high percentage of phosphoric acid in this reagent, at least some of the orthophosphoric acid is condensed into polyphosphoric acids; for the sake of labeling and simplicity, the 85% represents H3PO4 as if it were all in the ortho form. Dilute aqueous solutions of phosphoric acid exist in the ortho form. - Viquipèdia

Avaluació de l’EFSA: Re‐evaluation of phosphoric acid–phosphates – di‐, tri‐ and polyphosphates -E 338–341, E 343, E 450–452- as food additives and the safety of proposed extension of use (2019/06/12)

L'Autoritat Europea de Seguretat Alimentària (EFSA) ha determinat que alguns grups de població tenen un alt risc d'assolir o superar la ingesta diària acceptable (IDA) per E338 - Àcid fosfòric.

Per avaluar la vostra exposició a E338 - Àcid fosfòric, podeu navegar per la nostra llista de productes que en duen. Vegeu la llista de productes amb E338 - Àcid fosfòric de més avall.

	Nadons	Infants	Mainada	Adolescents	Adults	Gent gran
	<1	d'1 a 2	de 3 a 9	de 10 a 17	de 18 a 64	més de 65
Alt risc (50% de les persones o més)
Risc moderat (5% de persones o més)

: Risc d'assolir o superar la ingesta diària acceptable (IDA)