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Magnesium citrate anhydrous usp FOOD GRADE

Product Formula : Mg3(C6H5O7)2
Molecular Weight : 451.2
CAS Number : 3344-18-1

Tests Specifications
1.  Appearance : White or almost white, fine, slightly hygroscopic powder
2.  Solubility : Soluble in water, practically insoluble in ethanol (96 %). It dissolves in dil. HCl.
3.  Identification : A. Reaction of citrates - Shall pass the test
                     B. Reaction of magnesium - Shall pass the test
                     C. pH - 7.0 - 8.5
                     D. Loss on drying - Max. 3.5 %
4.  Appearance of solution : Clear and not more intensely coloured than reference solutions Y7 or BY6
5.  pH : 6.0 - 8.5
6.  Oxalates : Max. 280 ppm
7.  Sulphates : Max. 0.2 %
8.  Calcium : Max. 0.2 %
9.  Iron : Max. 100 ppm
10. Heavy metals : Max. 10 ppm
11. Loss on drying : Max. 3.5 %
12. Assay as Magnesium (On dried substance) : 15.0 % - 16.5 %
Storage: Store in a well-closed container at a temperature not exceeding 25°C, protected from direct sunlight and Moisture, unless otherwise specified.
Retest Period: 3 years from the date of manufacture


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