It is a versatile additive, functioning as an acidity regulator to balance pH, a preservative to extend shelf life, and a flavor enhancer for improved palatability. Additionally, it stabilizes colors and textures, ensuring consistent quality in food and feed products, making it indispensable in high-standard manufacturing processes.
| Parameter |
Value |
| Appearance |
White or nearly white crystalline powder or granules |
| Chemical formula |
C₄H₆O₅ |
| Molecular weight |
134.09 |
| INS number |
E296 |
| Assay |
Min. 99.0% |
| Melting point |
127 – 132°C |
| Residue on ignition |
Max. 0.05% |
| Water insoluble matter |
Max. 0.1% |
| Fumaric acid |
Max. 1.0% |
| Maleic acid |
Max. 0.05% |
| Arsenic (as As₂O₃) |
Max. 3 mg/kg |
| Lead (Pb) |
Max. 2 mg/kg |
| Mercury (Hg) |
Max. 1 mg/kg |