Polyaspartic Acid
Contact Info
- Add:Yurun Building, Gaoxin District, Weifang City, Shandong, China, Zip: 261041
- Contact: Ms.Rachel Yuan
- Tel:+86-536-8164977
- Email:sales@yurunchemical.com
Other Products
| Product Name | Poly-L-aspartic acid 99% |
| CAS No. | 25608-40-6 |
| Purity | 99% |
| Appearance | Powder/Liquid |
| Molecular Formula | C4H7NO4 |
| EINECS No. | / |
PASP is a water soluble polymer, has good scale inhibition on calcium carbonate, calcium sulfate, barium sulfate, calcium phosphate, etc. Its scale inhibition rate for calcium carbonate is 100%. Moreover, PASP has dispersion and corrosion inhibition properties to metal equipment.
PASP is an alternative of phosphor-containing Water Treatment Chemicals, avoiding water system eutrophication and second pollution.
Polyaspartic Acid Sodium Salt Solid/Powder
Polyaspartic Acid Sodium Salt Liquid/Solution
Specification
| Item | Standard | Test Results | |
| Identification | A.H-NMR:Comply with the structure | Complies | |
| B.LC-MS:Comply with the structure | Complies | ||
| C.The IR spectrum of sample should be identical with that of reference standard; | Complies | ||
|
D.HPLC-ESI-MS The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. |
Complies | ||
| Crystallinity | meets the requirements. | Complies | |
| Loss on drying | ≤2.0% | 0.19% | |
| Heavy metals | ≤10 ppm | <10ppm | |
| Water | ≤1.0% | 0.1% | |
| Sulphated ash | ≤0.5%, determined on 1.0 g. | 0.009% | |
| Related substances | Unspecified impurities: for each impurity | ≤0.10% | <0.10% |
| Total Impurity | ≤0.5% | 0.18% | |
| Purity | ≥99.0% | 99.7% | |
| Assay | 99.0%~101.0% (anhydrous substance). | 99.8% | |
| Microbiological Analysis | |||
| Total plate count | ≤1000cfu/g | Complies | |
| Yeast and Moulds | ≤100cfu/g | Complies | |
| E. Coli. | Absent | Negative | |
| Salmonella | Absent | Negative | |
| S.aureus | Absent | Negative | |
| Storage | Preserve in well-closed, light-resistant and airtight containers. | Complies | |
In 25kgs or 250kgs drum
Vanessa Zhao
Senior Business Manager
SHANDONG YURUN CHEMICAL CO.,LTD
vanessa.zhao@yurunchemical.com
Add: Yurun Building,Weifang City,Shandong Province,P.R.China.
CAS NO:25608-40-6
EC NO:
Molecular Formula:(C4H7NO4)x
Molecular Weight:133.102
Synonyms:L-Aspartic acid, homopolymer;L-Aspartic acid homopolymer;Poly-L-aspartic acid;
Molecular Structure:
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