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1. Description
L-Aspartic acid is a white and odorless
crystal powder with little acidity. It slightly
dissolves in water and undissolves in alcohol
and ether.
2.Usage
L-Aspartic acid is a kind of important
natural amino acid. In medicine, it is used
as medicine of cardiopathy, hepar function accelerator,
ammoniate toxicide, eliminating fatigure agent
and the composition of amino acid injection.
In industry, it is a main material of L-Alanine
and Asparagine. In food, it can be used as freshening
agent, high sweetness agent of low heat and
uncorrosing tooth, and elininating fatigure
agent in drink of sports type.
3. Specification
Assay |
99.0-100.5% |
Transmittance |
≥98.0% |
Specific rotation[  ] 20D |
+24.8° ~ +25.8° |
Loss on drying |
≤ 0.20% |
Chloride(Cl) |
≤ 0.020% |
Ammonium (NH4) |
≤ 0.02% |
Sulfate (SO4) |
≤ 0.020% |
Iron (Fe) |
≤ 10ppm |
Heavy metals (Pb) |
≤ 10ppm |
Arsenic (As2O3) |
≤ 1ppm |
Residue on ignition |
≤ 0.10% |
PH |
2.5 ~ 3.5 |
Other amino acids |
Not detectable |
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L-Aspartic acid