L-Glutamic acid

　　Other name:L-Glutamic acid (S)-2-Aminopentanedioic acid; H-Glu-OH; L-Glutamic acid; L-2-Aminoglutaric acid; H-Glu-OH; L(+)GLUTAMIC ACID; L-Glutamine Acid

　　CAS No: 56-86-0

　　Molecular Formula:C5H9NO4

　　Molecular Weight:147.13

　　Density:1.538

　　Melting point: 205ºC

　　Alpha:32º(c=10,2N HCl)

　　Water solubility:7.5 g/L (20ºC)

　　Properties: White crystal or crystalline powder, odorless, acid smell, soluble in alkali solution, slightly soluble in alkali solution, insoluble in alcohol or ether.

　　Quality index:

　　Item Index

　　Specific rotatory power[α] D20 +31.5º~ +32.2º Clarity≥95.0%

　　Ammonium salt[NH4]≤0.10%

　　Chloride[CL]≤0.02%

　　Residue on ignition≤0.10%

　　Sulfate[SO4]≤0.02%

　　Iron salt[Fe]≤10 ppm

　　Heavy metal[Pb]≤10 ppm

　　Arsenic salt≤1 ppm

　　Other amino acid Color layer can not be checked out.

　　Loss on drying 0.50%

　　Content ≥98.5%

　　Packing:

　　Packed in cardboard drum with the lining of two layers of plastic bags. NW:25 KG per drum.