USD $2.00-10.00 / Kilogram
USD $11,000.00-12,000.00 / Metric Ton
USD $10.00-100.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $11,000.00-12,000.00 / Metric Ton
USD $2.00-10.00 / Kilogram
USD $11,000.00-12,000.00 / Metric Ton
USD $11,000.00-12,000.00 / Metric Ton
USD $2.00-10.00 / Kilogram
name |
l-arginine |
appearance |
white crystals or crystalline powder |
specification rotation |
+26.9 – 27.9’ |
state of solution |
98.0% min |
cl |
0.02% max |
nh4 |
0.02% max |
so4 |
0.02% max |
fe |
10ppm max |
heavy metals (pb) |
10ppm max |
as |
1ppm max |
other amino acid |
not detectabke |
loss on drying |
0.50% max |
residue on ignition |
0.10% max |
assay |
99.0-101.0% |
ph |
10.5-12.0 |
item | specifications (usp24) | specifications (aji92) |
description | white crystals or crystalline powder | white crystals or crystalline powder |
identification | infrared absorption spectrum | infrared absorption spectrum |
specific rotation [a]d20° |
+26.3 °- +27.7° | +26.9 °- +27.9° |
state of solution /transmittance |
--- | ≥ 98.0% |
chloride (cl) | ≤ 0.05% | ≤ 0.020% |
ammonium (nh4) | --- | ≤ 0.02% |
sulfate (so4) | ≤ 0.03% | ≤ 0.020% |
iron (fe) | ≤ 0.003% | ≤ 10ppm |
heavy metals (pb) | ≤ 0.0015% | ≤ 10ppm |
arsenic (as2o3) | --- | ≤ 1ppm |
other amino acids | --- | chromatographically not detectable |
loss on drying | ≤ 0.5% | ≤ 0.5% |
residue on ignition (sulfated) |
≤ 0.3% | ≤ 0.10% |
assay | 98.5-101.5% | 99.0-101.0% |
ph | --- | 10.5-12.0 |
organic volatile impurities | meets the requirements | --- |