L-aspartic acid
-
- 2022-07-18
Contact Us
Description
Product Name:L-aspartic acid
Chemical Name:L- (+) - aminosuccinic acid
CAS:56-84-8
Chemical molecular formula:C4H7NO4
Chemical structural formula:
Chemical molecular weight:133.1
Physical properties:White crystalline or crystalline powder, odorless, slightly sour, no visible impurities in the naked eye. It dissolves in water and is insoluble in ethanol and ether.
Technical Specifications
| Item | Specifications | Result |
| Assay, % | 98.5~101.0 | 99.3 |
| Transmittance, % | ≥98.0 | 98.6 |
| Specific roation, [α]D20 | +24.8°~+25.8° | 25.26 |
| pH | 2.5~3.5 | 3.0 |
| Loss in drying, % | ≤0.20 | 0.06 |
| Residue on ignition, % | ≤0.10 | <0.10 |
| Chloride[Cl], % | ≤0.02 | 0.02 |
| Sulfate[SO42-], % | ≤0.03 | 0.02 |
| Arsenic[As], ppm | ≤2 | 1 |
| Heavy Metals[Pb] , ppm | ≤10 | 10 |
| Iron[Fe] , ppm | ≤10 | 10 |
| Ammonium salt[NH4+], % | ≤0.05 | 0.02 |
Package
25kg/Paper bag.
Storage
Avoid light, closed, dry and cool.
Contact us