E500–E599 (acidity regulators, anti-caking agents) |
| Code | Name | Purpose | Status |
| E500 | Sodium carbonates (i) Sodium carbonate (ii) Sodium bicarbonate (Sodium hydrogen carbonate) (iii) Sodium sesquicarbonate (acidity regulator) | raising agent | N/A |
| E501 | Potassium carbonates (i) Potassium carbonate (ii) Potassium bicarbonate (Potassium hydrogen carbonate) | acidity regulator | N/A |
| E503 | Ammonium carbonates (i) Ammonium carbonate (ii) Ammonium bicarbonate (Ammonium hydrogen carbonate) | acidity regulator | N/A |
| E504 | Magnesium carbonates (i) Magnesium carbonate (ii) Magnesium bicarbonate Magnesium hydrogen carbonate | acidity regulator, anti-caking agent | N/A |
| E505 | Ferrous carbonate | acidity regulator | N/A |
| E507 | Hydrochloric acid | acid | N/A |
| E508 | Potassium chloride (gelling agent) | seasoning | N/A |
| E509 | Calcium chloride (sequestrant) | firming agent | N/A |
| E510 | Ammonium chloride, ammonia solution (acidity regulator) | improving agent | N/A |
| E511 | Magnesium chloride | firming agent | N/A |
| E512 | Stannous chloride | antioxidant | Unpermitted |
| E513 | Sulphuric acid | acid | N/A |
| E514 | Sodium sulphates (i) Sodium sulphate (ii) | acid | N/A |
| E515 | Potassium Sulphates (i) Potassium Sulphate (ii) | | N/A |
| E516 | Calcium sulphate | | N/A |
| E517 | Ammonium sulphate | improving agent | N/A |
| E518 | Magnesium sulfate (Epsom salts), (acidity regulator) | firming agent | N/A |
| E519 | Copper(II) sulphate | preservative | N/A |
| E520 | Aluminium sulphate | firming agent | N/A |
| E521 | Aluminium sodium sulphate | firming agent | N/A |
| E522 | Aluminium potassium sulphate | acidity regulator | N/A |
| E523 | Aluminium ammonium sulphate | acidity regulator | N/A |
| E524 | Sodium hydroxide | acidity regulator | N/A |
| E525 | Potassium hydroxide | acidity regulator | N/A |
| E526 | Calcium hydroxide (acidity regulator) | firming agent | N/A |
| E527 | Ammonium hydroxide | acidity regulator | N/A |
| E528 | Magnesium hydroxide | acidity regulator | N/A |
| E529 | Calcium oxide (acidity regulator) | improving agent | N/A |
| E530 | Magnesium oxide (acidity regulator) | anti-caking agent | N/A |
| E535 | Sodium ferrocyanide (acidity regulator) | anti-caking agent | N/A |
| E536 | Potassium ferrocyanide | anti-caking agent | N/A |
| E537 | Ferrous hexacyanomanganate | anti-caking agent | Unpermitted |
| E538 | Calcium ferrocyanide | anti-caking agent | N/A |
| E539 | Sodium thiosulphate | antioxidant | N/A |
| E540 | Dicalcium diphosphate (acidity regulator) | emulsifier | N/A |
| E541 | Sodium aluminium phosphate (i) Acidic (ii) Basic | emulsifier | N/A |
| E542 | Bone phosphate (Essentiale Calcium Phosphate, Tribasic) | anti-caking agent | N/A |
| E543 | Calcium sodium polyphosphate | emulsifier | N/A |
| E544 | Calcium polyphosphate | emulsifier | N/A |
| E545 | Ammonium polyphosphate | emulsifier | N/A |
| E550 | Sodium Silicates (i) Sodium silicate (ii) Sodium metasilicate | anti-caking agent | N/A |
| E551 | Silicon dioxide (Silica) | anti-caking agent | N/A |
| E552 | Calcium silicate | anti-caking agent | N/A |
| E553a | (i) Magnesium silicate (ii) Magnesium trisilicate | anti-caking agent | N/A |
| E553b | Talc | anti-caking agent | N/A |
| E554 | Sodium aluminosilicate (sodium aluminium silicate) | anti-caking agent | N/A |
| E555 | Potassium aluminium silicate | anti-caking agent | N/A |
| E556 | Calcium aluminosilicate (calcium aluminium silicate) | anti-caking agent | N/A |
| E557 | Zinc silicate | anti-caking agent | Unpermitted |
| E558 | Bentonite | anti-caking agent | N/A |
| E559 | Aluminium silicate (Kaolin) | anti-caking agent | N/A |
| E560 | Potassium silicate | anti-caking agent | N/A |
| E561 | Vermiculite | | N/A |
| E562 | Sepiolite | | N/A |
| E563 | Sepiolitic clay | | N/A |
| E565 | Lignosulphonates | | N/A |
| E566 | Natrolite-phonolite | | N/A |
| E570 | Stearic acid (Fatty acid) | anti-caking agent | N/A |
| E572 | Magnesium stearate, calcium stearate (emulsifier) | anti-caking agent | N/A |
| E574 | Gluconic acid | acidity regulator | N/A |
| E575 | Glucono delta-lactone (acidity regulator) | sequestrant | N/A |
| E576 | Sodium gluconate | sequestrant | N/A |
| E577 | Potassium gluconate | sequestrant | N/A |
| E578 | Calcium gluconate | firming agent | N/A |
| E579 | Ferrous gluconate | food colouring | N/A |
| E580 | Magnesium gluconate | | N/A |
| E585 | Ferrous lactate | food colouring | N/A |
| E586 | 4-Hexylresorcinol | antioxidant | N/A |
| E598 | Synthetic calcium aluminates | | N/A |
| E599 | Perlite | | N/A |