Overview
Zinc acetate is a zinc salt of acetic acid, available in anhydrous and dihydrate forms. It is widely utilized in industrial processes, pharmaceuticals, and research due to its stability and solubility. The compound is synthesized by reacting zinc oxide or zinc carbonate with acetic acid. In B2B markets, zinc acetate is typically purchased in bulk quantities by manufacturers of wood preservatives, nutritional supplements, and chemical intermediates. Its role as a catalyst in organic reactions also makes it valuable for specialty chemical producers.
Physical and Chemical Properties
Zinc acetate appears as white, odorless crystals with a density of 1.735 g/cm³ (dihydrate). It decomposes upon heating, releasing acetic acid vapors. The compound is highly soluble in water (43 g/100 mL at 20°C) and forms clear solutions. Its hygroscopic nature necessitates airtight packaging to prevent moisture absorption. Chemically, it acts as a mild Lewis acid and participates in coordination chemistry, forming complexes with ligands. These properties are exploited in applications like dye fixation and polymer production.
Main Applications
In wood preservation, zinc acetate serves as a fungicide and mildewstat, often combined with borates. The pharmaceutical industry uses it in lozenges for zinc supplementation and cold symptom relief. Its astringent properties make it suitable for topical antiseptics. Industrial applications include textile dyeing (as a mordant), synthetic rubber production, and as a precursor for other zinc compounds. Research laboratories employ it as a buffer or reagent in organic synthesis, particularly for preparing zinc-containing nanomaterials.
Safety and Storage
Zinc acetate requires careful handling to avoid dust formation. PPE such as gloves and safety goggles is recommended. Although low in toxicity, prolonged exposure may cause zinc fever or gastrointestinal distress if ingested. Storage should be in original, sealed containers at room temperature, separated from strong oxidizers. Spills should be contained with inert absorbents and disposed of as hazardous waste. Facilities must ensure adequate ventilation to prevent airborne concentrations exceeding OSHA’s permissible exposure limit (5 mg/m³ for zinc compounds).
B2B Procurement Guide
When sourcing zinc acetate, prioritize suppliers with ISO 9001 certification and batch-specific COAs (Certificates of Analysis). Key specifications to verify include assay (≥98%), heavy metal content (<10 ppm), and chloride/sulfate limits. Bulk shipments (25 kg bags or 1,000 kg drums) commonly offer cost advantages. For pharmaceutical-grade purchases, ensure compliance with USP or EP monographs. Spot prices fluctuate with zinc metal markets; long-term contracts may stabilize costs. Always audit supplier QC processes and transportation conditions to prevent contamination or moisture damage.
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