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Specifications
| Grade: | USP36 |
| Appearance: | White powder |
| Magnesium content (on dry basis), w/%: | 14.5 ~ 16.4 |
| Chloride, w/%: | 0.05 max |
| pH value (50 mg/mL): | 5.0 ~ 9.0 |
| Sulfate, w/%: | 0.2 max |
| Calcium, w/%: | 1.0 max |
| Arsenic (As) (mg/kg): | 3 max |
| Iron (Fe) (mg/kg): | 200 max |
| Heavy metal (Pb) (mg/kg): | 50 max |
| Loss of weight on drying, w/%: | 2.0 max |
Applications
1. Dietary Supplements
Widely used in magnesium tablets, capsules, powders, and liquids to treat or prevent magnesium deficiency.
Supports muscle function, nerve transmission, energy production, and bone health.
Popular due to its high solubility and absorption, preferred over some other magnesium salts like magnesium oxide.
2. Laxatives and Bowel Preparations
Used as an osmotic laxative to treat constipation and for bowel cleansing prior to medical examinations (e.g., colonoscopy).
Draws water into the intestines, stimulating bowel movements.
3. Food and Beverage Industry
Added to fortified foods and beverages to increase magnesium content.
Helps address dietary magnesium insufficiency in the general population.
4. Pharmaceutical and Medical Use
Employed in formulations for muscle relaxation, cardiovascular health, and electrolyte balance.
Sometimes used in intravenous fluids as a magnesium source (though other salts are more common).
5. Animal Nutrition
Included in livestock and pet feeds to promote healthy muscle and nerve function, growth, and overall metabolism.
Benefits
1. High Bioavailability
Magnesium citrate is absorbed efficiently in the gastrointestinal tract, leading to better magnesium status in the body compared to less soluble forms like magnesium oxide.
2. Supports Muscle and Nerve Function
Magnesium is essential for muscle contraction and relaxation, nerve impulse transmission, and prevention of cramps and spasms.
3. Bone and Cardiovascular Health
Plays a vital role in bone mineralization alongside calcium.
Helps regulate blood pressure and supports heart rhythm stability.
4. Gentle Laxative Effect
Provides an effective yet mild osmotic laxative action without harsh cramping for constipation relief and bowel prep.
5. Energy Metabolism and Enzyme Activation
Cofactor in over 300 enzymatic reactions, including those involved in ATP synthesis and protein synthesis.
Conclusion
Magnesium citrate (CAS 144-23-0) is a highly bioavailable, water-soluble magnesium supplement used widely in dietary, pharmaceutical, and medical applications. Its dual role as a magnesium source and osmotic laxative makes it versatile for maintaining mineral balance, digestive health, and muscle function. With good tolerability and absorption, magnesium citrate is a preferred choice for individuals needing magnesium supplementation or bowel cleansing preparations.
