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| APPEARANCE: | White Or Nearly White Crystalline Powder Or Granules,Special Acidity | ASSAY(AS C4H6O5): | 99.0%~100.5% |
|---|---|---|---|
| WATER INSOLUBLE MATTER %: | ≤0.1 | RESIDUE ON IGNITION %: | ≤0.1 |
| CAS: | 6915-15-7 | Formula: | C4H6O5 |
High temperature and high pressure water is one of the main manufacturing DL - malic acid legally industrial technology, and its steps based on maleic acid as raw material, heated to 120 ℃, under the pressure of 1 MPa hydration generated DL - malic acid, DL - malic acid increased as the concentration of dehydration production of fumaric acid, fumaric acid can also be slow hydration DL - malic acid production, the final formation of fumaric acid and malic acid reversible equilibrium, and more than 63% malic acid.
The food industry is used as an emulsifying stabilizer, such as acid flavor agent, color retention agent, preservative and egg yolk, etc., also used in pharmaceutical industry. It is generally believed that l-malic acid has important physiological functions, but D - half of D - malic acid is not biologically effective.
In double lined cardboard barrel packaging food grade of polyethylene plastic bags, very easy to moisture absorption and oxidation performance, transport should be awnings, must not with toxic, bad breath, colored powder mixed with, store in a cool, dry, avoid insolation.
| ITEMS | STANDARDS | RESULTS |
| APPEARANCE: |
WHITE OR NEARLY WHITE CRYSTALLINE POWDER OR GRANULES,SPECIAL ACIDITY |
WHITE CRYSTALLINE GRANULES |
| ASSAY(AS C4H6O5) % | 99.0~100.5 | 99.9 |
| SPECIFIC ROTATION [ a ]D25℃ | -0.10~+0.10 | 0.00 |
| LEAD MG/KG | ≤2 | ＜2 |
| FUMARIC ACID % | ≤1.0 | 0.3 |
| MALEIC ACID % | ≤0.05 | 0.01 |
| WATER INSOLUBLE MATTER % | ≤0.1 | 0.03 |
| RESIDUE ON IGNITION % | ≤0.1 | 0.04 |
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