| CAS No.: | 6915-15-7 |
|---|---|
| Formula: | C4h6o5 |
| EINECS: | 210-514-9 |
| Nutritional Value: | Nutritional |
| Certification: | ISO |
| Packaging Material: | Paper |
| Customization: |
|---|
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Malic acid, also known as 2-hydroxysuccinic acid, has two stereoisomers due to an asymmetric carbon atom in the molecule. In nature, it exists in three forms, namely D-malic acid, L-malic acid and a mixture thereof DL-malic acid. White crystal or crystalline powder, which has strong hygroscopicity and is easily soluble in water and ethanol. Have a special pleasant sour taste. Malic acid is mainly used in the food and pharmaceutical industries.| Test | Requirement | Result |
| ASSAY (%) | 99.0 -100.5 | 99.2 |
| SPECIFIC ROTATION | -0.1 -- +0.1 | 0 |
| MELTING RANGE (ºC) | 127-132 | 130 |
| WATER INSOLUBLES (%) | MAX 0.1 | 0.01 |
| SULPHATED ASH(%) | MAX 0.1 | 0.06 |
| FUMARIC ACID (%) | MAX 1.0 | 0.56 |
| MALEIC ACID(%) | MAX 0.05 | 0.01 |
| HEAVY METALS PPM | NMT 10 | <10 |
| ARSENIC PPM | MAX 2 | < 2 |
| LEAD PPM | MAX 2 | < 2 |
| MERCURY PPM | MAX 1 | <1 |
| IDENTIFICATION TEST | IR ABSORPTION | COMFORMED |
| Conclusion: | The product complies with the standard above. | |
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