Sodium Acetate Trihydrate: Overview Chemical Formu...

Sodium Acetate Trihydrate: Overview Chemical Formula: CH₃COONa·3H₂O Molecular Weight: 136.08 g/mol Appearance: Transparent crystals Primary Use: Textile dyeing, heating pads, buffering agent, and laboratory reagent ⚗️ Raw Materials Required Material Chemical Name Purity Acetic Acid CH₃COOH 99% glacial preferred Sodium Carbonate / Sodium Bicarbonate / Sodium Hydroxide Na₂CO₃ / NaHCO₃ / NaOH Commercial grade Water H₂O Distilled or purified 🧪 Chemical Reaction Basic Neutralization Reaction: Method 1 (with Sodium Carbonate): mathematica Copy Edit 2 CH₃COOH + Na₂CO₃ → 2 CH₃COONa + CO₂↑ + H₂O Method 2 (with Sodium Hydroxide): mathematica Copy Edit CH₃COOH + NaOH → CH₃COONa + H₂O 🏭 Manufacturing Process Steps ✅ Step 1: Neutralization Add glacial acetic acid slowly to a reaction tank containing water. Under controlled stirring, slowly add sodium carbonate or NaOH solution. Maintain temperature between 30°C–40°C. Reaction is exothermic; allow CO₂ to escape (if using carbonate). ✅ Step 2: Filtration Once neutralization is complete and a clear solution of sodium acetate is obtained, filter out any insoluble impurities (if present). ✅ Step 3: Crystallization Cool the solution to room temperature and then to 5–10°C to initiate crystallization of sodium acetate trihydrate. Crystals begin to form as the solution becomes saturated. ✅ Step 4: Separation Filter or centrifuge the crystal mass. Wash crystals with chilled water to remove residual mother liquor. ✅ Step 5: Drying Air dry or use tray dryers at <50°C to prevent dehydration. Final product: Sodium Acetate Trihydrate Crystals 🧯 Safety & Handling Notes Use PPE (gloves, goggles) due to corrosive nature of glacial acetic acid. Ventilation needed to manage CO₂ release and acetic acid vapors. Store in moisture-proof containers to retain trihydrate form. 📦 Yield Estimate (Per 100 kg batch): Acetic Acid: ~60 kg Na₂CO₃: ~40 kg Water: ~100 liters Sodium Acetate Trihydrate Output: ~120–130 kg (depending on purity and process control)