EDTA
Features and Benefits
Active Ingredient Name: Tetrasodium Ethylenediaminetetraacetate Tetrahydrate
CAS number: 13235-36-4
For TSCA and EINECS purposes, refer to CAS No. 64-02-8 for anhydrous Na4EDTA.
Chemical Formula: C10H12N2 O8Na4 •4H2O
– ó –
(NaOOCCH2) 2 NCH2 CH2 N(CH2 COONa) 2 • 4H2O
Molecular Weight: 452.2
Color: 200 maximum (30% aqueous solution) (APHA)
pH: 10.5-11.5 (1 wt% solution)
Solubility in Water: 50.7 wt% at 25 ° C / 77 ° F
† Data provided on these products and their properties are typical values, intended as guidelines only, and should not be construed as sales specifications.
Chelation Capacity of One gram of VERSENE ™ 220: One gram of VERSENE ™ 220 Crystals has the chelation capacity of 2.19 millimoles of EDTA
Typical Properties: Calcium Chelation Value – 229 mg as CaCO3 per gram of VERSENE ™ 220 Crystals
% Analysis:
- 99.0 wt% as Na4EDTA • 4H2O
- 83.2 wt% as Na4EDTA
- 64.0 wt% as H4EDTA
Appearance: White crystalline powder
Gross Density: 720 kg / m3 or 45 lb / cu ft
