Overview
58% Sodium Acetate is a concentrated form of sodium acetate solution widely used in industrial wastewater treatment processes. As an alkaline salt derived from acetic acid, it serves multiple functions in water treatment facilities, particularly in biological nutrient removal systems. The 58% concentration refers to the weight percentage of sodium acetate in the solution, making it a cost-effective option for large-scale applications. This concentration balances handling convenience with effectiveness, providing sufficient alkalinity and carbon source for microbial processes without being overly viscous or difficult to handle.
Physical and Chemical Properties
The 58% sodium acetate solution appears as a clear, colorless to slightly yellowish liquid with a mild acetic odor. It has a pH of approximately 7.5-9.0 in solution, making it effective for pH adjustment in wastewater systems. Chemically, sodium acetate dissociates in water to provide acetate ions (CH3COO-) which serve as an excellent carbon source for denitrifying bacteria. The solution has good thermal stability but should be protected from freezing (freezing point around -10°C for 58% solution). Its high solubility and rapid dissolution make it particularly suitable for automated dosing systems in wastewater treatment plants.
Main Applications
In wastewater treatment, 58% sodium acetate serves three primary functions: as a pH buffer to maintain optimal conditions for biological processes, as an external carbon source to enhance denitrification in low-COD wastewaters, and as an alkalinity supplement to neutralize acidic byproducts of treatment processes. It is particularly valuable in biological nutrient removal (BNR) systems where insufficient carbon limits denitrification. Compared to alternative carbon sources like methanol, sodium acetate is safer to handle and more immediately bioavailable to microorganisms. The 58% concentration is commonly used in municipal wastewater plants, industrial effluent treatment, and landfill leachate management systems.
Safety and Storage
While sodium acetate is generally considered low in toxicity, the 58% concentration requires careful handling due to its alkaline nature. Personnel should wear appropriate PPE including gloves and eye protection when handling the solution. Spills can create slippery surfaces and should be promptly cleaned with water. Storage should be in corrosion-resistant containers (polyethylene or stainless steel) at ambient temperatures, protected from freezing. The solution is stable under normal conditions but may crystallize if stored for extended periods; gentle warming and agitation can redissolve any crystals that form. Proper labeling and secondary containment are recommended for bulk storage.
B2B Procurement Guide
When procuring 58% sodium acetate for wastewater treatment, buyers should specify whether they require technical grade or higher purity formulations. Technical grade is typically sufficient for most water treatment applications. Key procurement considerations include: verification of actual concentration (typically 58±1%), chloride content specifications, heavy metal limits, and presence of any additives or stabilizers. Bulk shipments (tank trucks or isotanks) offer the best value for large-scale users, while intermediate bulk containers (IBCs) or drums may be more suitable for smaller facilities. Buyers should evaluate suppliers based on consistent quality, reliable delivery schedules, and proper handling procedures to ensure product integrity. Pricing is typically volume-dependent, with seasonal fluctuations possible.
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