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Opis
Zinc Citrate
Other Names: Trizinc dicitrate, Citric acid zinc salt, K72I3DEX9B
CAS Number: 546-46-3
Sum Formula: C₁₂H₁₀O₁₄Zn₃
Molar Mass: 574.30 g/mol
Appearance: White to off-white crystalline powder
Zinc citrate is an inorganic-organic coordination compound consisting of zinc ions complexed with citrate anions. It is slightly soluble in water and is used for its stabilizing, antimicrobial, and ion-delivering properties in technical, chemical, and industrial formulations.
Chemical and Physical Properties
Density: ~2.5–3.0 g/cm³ (estimated)
Melting Point: Decomposes before melting
Boiling Point: Not applicable (decomposes)
Solubility in Water: Slightly soluble (depends on pH and concentration)
Solubility in Other Solvents: Practically insoluble in organic solvents; soluble in dilute acids
Odor: Odorless
Applications
Chemical Industry: Used as a zinc source in specialized chemical formulations.
Material Science: Investigated for antimicrobial coatings and functional materials.
Catalysis: Explored as a precursor in the preparation of zinc-based catalysts.
Water Treatment: Sometimes incorporated into systems for metal ion release and stabilization.
Analytical Chemistry: Studied for coordination chemistry involving citrate and transition metals.
Safety
Signal Word: Warning
H319 (87.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H400 (89.4%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
H410 (42.7%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
H411 (85.9%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
P264+P265, P273, P280, P305+P351+P338, P337+P317, P391, and P501
Handling and Storage
Storage Conditions: Store in a tightly sealed container in a cool, dry, and well-ventilated area. Protect from excessive heat, moisture, and incompatible materials such as strong acids and bases.
Handling Precautions: Avoid dust formation and exposure to moisture. Handle using appropriate PPE and standard chemical safety practices.