DL malic acid (CAS 617-48-1; 6915-15-7) is a mixture of D-malic acid and L-malic acid, which is an important organic acid with wide industrial applications.
DL malic acid, chemical formula C4H6O5, molecular weight 134.09, melting point 130 ℃, flash point 203 ℃, water solubility 558 g/L (20 ℃) 1. It is a white crystalline or crystalline powder with strong hygroscopicity, easily soluble in solvents such as water and ethanol. Stable under normal conditions, but has hygroscopicity when the humidity is high.
DL malic acid has a wide range of applications in the food industry. It can be used as an acidifier to provide natural sourness to food, and is widely used in refreshing beverages, cold foods, processed foods, etc; At the same time, it can also serve as a color preserving agent, helping to maintain the bright color of food; In addition, DL malic acid also has a certain preservative effect, which can extend the shelf life of food; In foods such as egg yolks, it can also serve as an emulsifying stabilizer, improving the stability of the food.
In addition to the food industry, DL malic acid is also used in various fields such as pharmaceuticals, cosmetics, metal cleaners, industrial deodorizers, textile industry coagulants, fluorescent whitening agent raw materials, and the chemical industry.
Overall, DL malic acid is a multifunctional and widely used organic acid that plays an important role in multiple industries.
Specification (Food grade)
| Items | Specification | Testing Results |
| Colour and lustre | White or almost white | White |
| Smell | Smell sour tast | Special sour |
| Appearance | Crystalline powder or particle | Crystalline powder |
| DL-malic acid,w/% | 99.0-100.5 | 99.54 |
| Specific rotation | -0.10~+0.10 | 0 |
| Fumaric acid | ≤1.0 | 0.38 |
| Maleic acid,w/% | ≤0.05 | 0.01 |
| Burning residue,w/% | ≤0.1 | 0.03 |
| As(mg/kg) | ≤2 | <2 |
| Pb(mg/kg) | ≤2 | <2 |
| Water insoluble matter,w/% | ≤0.1 | 0.01 |
Packing
25kg/paper bag or as per request.
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