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Highly effective sodium salt of ethylenediaminetetraacetic acid (EDTA), optimized for stability in alkaline and hard water conditions.
Excellent sequestration capacity for multivalent metal ions including Ca²⁺, Mg²⁺, Fe³⁺, and Cu²⁺ across a broad pH range (4–12).
Biodegradable under aerobic conditions, supporting sustainable formulation strategies in compliance with OECD 301B guidelines.
Low toxicity profile and favorable handling safety compared to alternative chelators, with no classification for acute toxicity or environmental hazards under CLP.
Soluble in cold water, enabling easy integration into liquid detergent, cleaning, and industrial process formulations without heating requirements.
Laundry and dishwashing detergents — prevents redeposition of soil and maintains cleaning efficiency in hard water.
Industrial cleaning agents for metal parts, boilers, and heat exchangers — inhibits scale formation and enhances descaling performance.
Textile processing auxiliaries — stabilizes peroxide bleaching baths and improves dye uniformity by controlling metal-catalyzed decomposition.
Water treatment in closed-loop cooling systems — mitigates corrosion and fouling caused by dissolved transition metals.
Personal care formulations (e.g., shampoos, liquid soaps) — improves product clarity, viscosity stability, and preservation efficacy.
| Chemical Type | Sodium salt of EDTA (tetrasodium ethylenediaminetetraacetate) |
| Product Form | Free-flowing white crystalline powder |
| Appearance | White to off-white granular or crystalline solid |
| pH (1% aqueous solution) | 10.5 – 11.5 |
| Solubility in Water (20°C) | Freely soluble (>500 g/L) |
| Chelating Capacity (as CaCO₃) | ≥ 240 mg/g |
| Assay (Na₄EDTA, dry basis) | ≥ 98.0 wt% |
| Heavy Metals (as Pb) | ≤ 10 ppm |
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E-mail: wangxingqiang@ericwchem.com
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