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Specifications
| Appearance | White, grayish white or slightly yellowish, flakes or blocks solid |
| Assay | 99.0% ~ 102.0% |
| pH value (50g/L, 25°C) | 4.5 ~ 8.5 |
| Clarity test | Pass |
| Water-insoluble substances | 0.01% max |
| Sulfates (SO₄²⁻) | 0.01% max |
| Nitrates (NO₃⁻) | 0.003% max |
| Phosphates (PO₄³⁻) | 0.001% max |
| Ammonium (NH₃) | 0.005% max |
| Sodium (Na) | 0.02% max |
| Magnesium (Mg) | 0.02% max |
| Potassium (K) | 0.01% max |
| Iron (Fe) | 0.001% max |
| Arsenic (As) | 0.0001% max |
| Strontium (Sr) | 0.02% max |
| Barium (Ba) | 0.005% max |
| Heavy metals (as Pb) | 0.0005% max |
Applications
Calcium chloride dihydrate is extensively used across industrial, food, pharmaceutical, and laboratory fields. In the food industry, it serves as a firming agent in canned vegetables and fruits, a stabilizer in cheese production, and an electrolyte replenisher in sports drinks. In pharmaceuticals, it is applied in intravenous injections to correct calcium deficiencies, as well as in formulations where calcium supplementation is required. Industrially, it is widely used for dust control on roads, de-icing and anti-freezing in cold regions, and as a drying agent due to its hygroscopic nature. It is also employed in water treatment, cement acceleration, and laboratory applications as a reagent in various chemical processes.
Benefits
The benefits of calcium chloride dihydrate stem from its versatility, solubility, and high reactivity. Its ability to absorb moisture makes it an effective desiccant and de-icing agent, reducing hazards caused by ice and snow. In food processing, it improves product texture, maintains stability, and provides an essential source of calcium. As a pharmaceutical component, it helps restore electrolyte balance and supports cardiovascular and neuromuscular functions. Its cost-effectiveness, safety in controlled use, and multifunctional nature make it an indispensable compound in diverse applications.
Conclusion
Calcium chloride dihydrate is a multifunctional compound with significant roles in food, pharmaceuticals, and industrial processes. Its hygroscopic, stabilizing, and calcium-supplying properties contribute to both human health and technical applications. By enhancing safety, improving product quality, and providing practical utility, it remains a highly valuable material across numerous industries.
