Magnesium DL-Aspartate
1.Structural molecular: C4H5MgNO4
2.Molecular weight: 155.3918
3.Assay:98.0-101.0%
4.Standard:DAB10

Magnesium DL-Aspartate(CAS No.:  1187-91-3)

Commercial product name:Magnesium DL-Aspartate

Cas No.: 1187-91-3

                       CERTIFICATE OF ANALYSIS

Aspect: crystalline white powder 

Identification: 

1) Optical rotation: from -0.3 to +0.3(10% solution)

2) Qualitative reactions

Solubility: Sparingly soluble in water, practically insoluble in alcohol

 95% and acetone

Clarity & color: Dissolve 0.5g in 10ml of water with heating and cool.

             Solution is clear and colourless as that of water.

pH: 6.0-8.0 (5% solution, potentiometeraly)

Water kf: 18.5-22.0%

Chloride: ≤50ppm

Sulphate(SO4): ≤100ppm

Ammonium(NH4): ≤100ppm

Iron(Fe): ≤30ppm

Heavy metals(Pb): ≤10ppm

Arsenic: ≤1ppm

Loss of weight: 19.0-22.0%

Assay (magnesium): 6.3-7.0%

Assay (Acid aspartic): 69.4 - 75.1%

Assay on drying: 98.0% - 101.0%

TLC on silica gel: Conforms

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MS. Alyson Lin

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