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DL-Malic acid introduction:
DL-Malic acid is white crystals or white crystalline powder, soluble in water, alcohol and other organic solvent. DL-Malic acid ‘s aqueous solution is acidic..
DL-Malic acid can be used as an acidulant in cool drinks (including lactobacillus drinks, milk drinks, carbonated drinks, cola), frozen foods (including sherbet and ice cream), processed foods (including wine and mayonnaise). DL-Malic acid is used as color-keeper and antiseptic of juice. DL-Malic acid is also used as emulsion stabilizer of egg yolk. DL-Malic acid also can be used as pharmaceutical intermediate, cosmetic, rinse, metal cleaner, buffering agent, retarder in textile industry, fluorescent whitening agent of polyester fibre.
DL-Malic acid Specification:
| items | index |
| Assay(as C4H6O5) | 99.0%~100.5% |
| Optical purity(e.e%, Chiral HPLC) | 98.0% Min |
Specific Rotation (c=8.5,H2O) |
+1.6o~+2.6o |
| Arsenic(As2O3) | 2.0mg/kg Max |
| Heavy Metal(Pb) | 20mg/kg Max |
| Residue On Ignition | 0.1% Max |
| Chloride[Cl-] | 0.01% Max |
| Fumaric Acid | 0.5% Max |
| Maleic Acid | 0.05% Max |
| Sulfate[SO2-4] | 0.04% Max |