Citric acid monohydrate is a colorless, translucent crystal or white powder, which is easily soluble in water and ethanol. It is odorless and tastes sour.
Citric acid is naturally present in many fruits, especially citrus fruits, which contain more citric acid.
It usually exists in the form of anhydrate or monohydrate. When citric acid crystallizes in hot water, it forms anhydrate, that is, anhydrous citric acid, and when it crystallizes in cold water, it forms citric acid monohydrate.
Usually, citric acid monohydrate is suitable for food additives, while anhydrous citric acid is more used in industrial chemicals.
| Items | Specification | Results |
| Color&Clarity of Solution | Passes test | Passes Test |
| Assay | 99.5-100.5% | 99.88% |
| Water | 7.5-8.8% | 8.68% |
| Particle Size | 8-40mesh | 8-40mesh |
| Readily Carbonisable Substances | Passes Test | Passes Test |
| Sulphated Ash | ≤0.05% | 0.026% |
| Sulphate | ≤150ppm | <150ppm |
| Oxalate | ≤100ppm | <100ppm |
| Chlorides | ≤5ppm | <5ppm |
| Calcium | ≤75ppm | <75ppm |
| Iron | ≤5ppm | <5ppm |
| Aluminum | ≤0.2ppm | <0.2ppm |
| Arsenic | ≤1ppm | Not Detected |
| Lead | ≤0.5ppm | Not Detected |
| Mercury | ≤1ppm | Not Detected |
| Heavy Metals | ≤5ppm | <5ppm |
| Conclusion: | Meet the standard | |
| Storage: | Store in cool, dry place in well-closed containers | |
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