Zinc EDTA (Zn-EDTA), Zn 15%

Zinc EDTA (Zn-EDTA), Zn 15%
Other Names: Ethylenediaminetetraacetic acid zinc disodium salt, Zn-EDTA chelate, Zinc ethylenediaminetetraacetate

CAS Number: 14025-21-9
Sum Formula: C₁₀H₁₂N₂O₈Zn
Molar Mass: 363.59 g/mol
Appearance: White to off-white crystalline powder or granules

Zinc EDTA is a stable, water-soluble chelated compound of zinc and EDTA (ethylenediaminetetraacetic acid). The compound contains approximately 15% elemental zinc by weight and is widely used in technical applications requiring controlled zinc availability in aqueous systems.

Chemical and Physical Properties

• Zinc Content: 15% (w/w)

• Solubility in Water: Fully soluble

• pH (1% solution): 6.0–7.5

• Density (bulk): ~0.7–0.9 g/cm³

• Stability: Stable in neutral and slightly alkaline solutions

• Odor: Odorless

Applications

• Industrial Water Treatment: Used to stabilize zinc in cooling water and boiler systems

• Micronutrient Formulations: Applied in technical-grade fertilizers for foliar sprays and soil treatment (non-food grade)

• Electroplating and Surface Treatment: Provides a controlled source of zinc ions

• Chemical Processing: Used in laboratory and industrial processes involving metal chelation or catalysis

Safety

Signal Word: Warning

GHS Hazard Statements

H319 (14.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statement Codes

P264+P265, P280, P305+P351+P338, and P337+P317

First Aid Measures

• Eye Contact: Rinse immediately with plenty of water for several minutes. Seek medical advice if irritation occurs

• Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing

• Inhalation: Move to fresh air. Seek medical attention if respiratory symptoms persist

• Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical advice

Handling and Storage

• Storage Conditions: Store in a cool, dry, well-ventilated area. Keep container tightly closed and protect from moisture

• Handling Precautions: Avoid dust formation. Use only with proper PPE and local exhaust ventilation