Polyaspartic Acid Sodium Salt
Product Description
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.
Product Specifications
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 |
Packing
In 25kgs or 250kgs drum
Contact Detalis:
Vanessa Zhao
Senior Business Manager
SHANDONG YURUN CHEMICAL CO.,LTD
Add: Yurun Building,Weifang City,Shandong Province,P.R.China.