Tetrasodium EDTA 4Na
Tetrasodium EDTA introduction
Name: Tetrasodium ethylenediaminetetraacetic acid (EDTA-4Na)
English name: Ethylene diamine tetraacetic acid tetrasodium salt, ethylenediamine tetraacetic acid tetrasodium salt, EDTA-4Na, Tetrasodium EDTA, Ethylene diamine tetraacetic acid tetrasodium
CAS number: 13235-36-4，64-02-8
Molecular formula: C10H12N2O8Na4 4H2O
Molecular weight: M=452.23
Tetrasodium EDTA Specifications
| Series No， | Item name | Specs Target | Testing result |
| 1 | assay ％ | ≥99.0 | 99.5 |
| 2 | Cl Content ％ | 0.01max | 0.002 |
| 3 | Fe Content ％ | 0.001max | 0.0001 |
| 4 | Pb Content ％ | 0.001max | / |
| 5 | PH 1% solution | 10.5-11.5 | 11.02 |
| 6 | Chelating value | 220min | 221 |
| 7 | SO4 Content ％ | 0.05max | 0.005 |
| 8 | NTA % | 1.0max | 0.2 |
| 9 | Appearance | White crystalline powder | White crystalline powder |
Tetrasodium EDTA Application
Tetrasodium EDTA, EDTA-4Na, also known as tetrasodium ethylenediaminetetraacetic acid, is an important chelating agent and metal masking agent, which can be used in textile dyeing, water treatment, color photosensitive, pharmaceutical, daily chemical, papermaking and other industries.
Tetrasodium EDTA can be used as a water softener, synthetic rubber catalyst, acrylic fiber polymerization terminator, printing and dyeing auxiliaries, detergent auxiliaries, etc. It is also used in titration in chemical analysis, it can accurately titrate various metal ions.