D-谷氨酸??6893-26-1
Item
Standard
Analysis data
Appearance
White powder
conforms
Specific
rotation[α]20/D
(C=10 in 2N HCl)
-31.0 to -32.2 Degree
-31.42°
State
of solution
Clear and colorless
conforms
Chloride
(Cl)
Not
more than 0.10%
0.018%
Heavy
metal(Pb)
Not
more than 10ppm
6ppm
Arsenic(As2O3)
Not
more than 2ppm
<2ppm
Loss
on drying
Not
more than 0.20%
0.14%
Residue on ignition(sulfated)
Not
more than 0.20%
0.09%
Assay
98.0
to101.0%
99.0%
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