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Item |
Limit |
Test result |
Appearance |
White or colorless crystal |
Passed |
Particle Size |
10-80MESH |
80mesh |
Assay |
99.0% to 100% |
99.1% |
state of solution (transmittance) |
Clear and colorless not less than 98.0% |
98% |
chloride (cl) |
Not more than 0.039% |
not more than 0.039% |
Ammonium(NH4) |
Not more than0.02% |
Not more than 0.02% |
Sulfate(so4) |
not more than 0.028% |
Not more than 0.028% |
Iron (Fe) |
Not more than 5PPM |
Not more than 5PPM |
Heavy metals (pb) |
Not more than 5 PPM |
Not more than 5 PPM |
Arsenic (ASO3) |
Not more than 0.5PPM |
Not more than 0.5 PPM |
Other amino acids |
Conforms |
Conforms |
Loss on drying |
Not more than 0.31% |
0.26% |
specific rotation (a)20 |
+24.4 ~+25.3 |
25.0 |
PH |
6.7~7.2 |
7.0 |
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