| E200 | Sorbic acid | C6H8O2 |
| E201 | Sodium sorbate | C6H7O2Na |
| E202 | Potassium sorbate | C6H7O2K |
| E203 | Calcium sorbate | C12H14O4Ca |
| E236 | Formic acid | CH2O2 |
| E237 | Sodium formate | CHO2Na |
| E238 | Calcium formate | C2H2O4Ca |
| E260 | Acetic acid | C2H4O2 |
| E261 | Potassium acetate | C2H3O2K |
| E262 | Sodium diacetate | C4H7O4Na |
| E263 | Calcium acetate | C4H6O4Ca |
| E270 | Lactic acid | C3H6O3 |
| E280 | Propionic acid | C3H6O2 |
| E281 | Sodium propionate | C3H5O2Na |
| E282 | Calcium propionate | C6H10O4Ca |
| E283 | Potassium propionate | C3H5O2K |
| E284 | Ammonium propionate | C3H9O2N |
| E295 | Ammonium formate | CH5O2N |
| E296 | DL-Malic acid | C4H6O5 |
| E297 | Fulmaric acid | C4H4O4 |
| E325 | Sodium lactate | C3H5O3Na |
| E326 | Potassium lactate | C3H5O3K |
| E327 | Calcium lactate | C6H10O6Ca |
| E330 | Citric acid | C6H8O7 |
| E331 | Sodium citrates | — |
| E332 | Potassium citrates | — |
| E333 | Calcium citrates | — |
| E334 | L-Tartaric acid | C4H6O6 |
| E335 | Sodium L-tartrates | — |
| E336 | Potassium L-tartrate | — |
| E337 | Potassium sodium L-tartrates | C4H4O6KNa.4H2O |
| E338 | Orthophosphoric acid | H3PO4 |
| E507 | Hydrochloric acid for use in silage only | HC1 |
| E513 | Sulphuric acid for use in silage only | H2SO4 |
