20% Liquid Sodium Acetate
Character: Colorless Transparent Liquid
Usage: It is a kind of chemical raw material and is widely used in dye, pharmaceutical, chemical reagent fields, sewagement and etc.
Package: 1000L IBC tank or Flexibag.
Storage: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
- Product Description
20% Liquid Sodium Acetate Solution — High-Efficiency Carbon Source for Industrial & Municipal Applications
Shanxi Zhaoyi Chemical Co., Ltd. supplies 20% Liquid Sodium Acetate as a ready-to-use aqueous solution engineered for demanding industrial applications. This colorless clear liquid is produced in our 27,000 m² plant with an annual capacity of 150,000 tons of acetate products, providing a COD equivalent of 150,000–170,000 mg/L, a constant pH of 7.5–9.0, and viscosity ≤20 mPa·s at 25°C. The specification has tight limits on chlorides and sulfates, Cl ≤0.03% and heavy metals (like Pb) ≤0.001%. Since 1988, we have over 30 years of experience in the acetate business. We serve B2B customers throughout the globe with consistent supply, flexible packaging in IBC or Flexibag format and comprehensive technical documentation.
Technical Specifications
Parameter | Specification | Test Method |
Appearance | Colorless transparent liquid | Visual inspection |
Sodium Acetate Content (CH₃COONa) | ≥20% | Titration |
COD Equivalent | 150,000–170,000 mg/L | Standard COD test |
pH Value (25℃) | 7.5–9.0 | pH meter |
Density (20℃) | 1.10–1.15 g/cm³ | Hydrometer |
Chloride (Cl) | ≤0.03% | Ion chromatography |
Iron (Fe) | ≤0.006% | ICP-OES |
Heavy Metals (as Pb) | ≤0.001% | AAS |
Viscosity (25℃) | ≤20 mPa·s | Rotational viscometer |
Freezing Point | -5 to -10°C | Differential scanning calorimetry |
What Is 20% Liquid Sodium Acetate?
It is an aqueous solution specifically prepared to include 20% by weight of sodium acetate (CH₃COONa). It is developed as a high efficiency external carbon source for industrial and municipal waste water treatment and as a flexible reagent for the dye, pharmaceutical and fine chemical industries.
The product solution delivers a real plug-and-play dosing experience, unlike solid sodium acetate, which needs specialized dissolve equipment and preparation time, or methanol, which is a major flammability and toxicity danger. It removes lag time for dissolving, is immediately bioavailable to denitrifying bacteria, and is compatible with current dosing systems without the need for infrastructure improvements.
Special Features
The solution is a colorless clear liquid, having a density of around 1,10-1,15 g/cm3. Its slightly alkaline pH range of 7.5–9.0 provides mild buffering qualities and makes it appropriate in both biological treatment systems and chemical processing settings.
A defining technical advantage is its zero-induction time for bacterial uptake. Denitrifying bacteria can begin utilizing acetate within 1–3 days, compared to 15–30 days required for methanol system acclimatization. This makes it the preferred choice for emergency compliance situations and rapid system start-ups.
The high solubility stability of a 20% concentration also prevents pipeline crystallization at standard operating temperatures above -5°C, ensuring reliable, uninterrupted dosing under most operating conditions.
Applications
Municipal Wastewater Denitrification
Liquid sodium acetate is most often used in sewage treatment facilities (STPs) when the influent has inadequate carbon to nitrogen ratios for wastewater treatment. Dosing directly to anoxic zones improves denitrification kinetics and helps facilities routinely meet Class 1-A Total Nitrogen (TN) discharge limits. Its small-molecule fatty acid composition is nevertheless easily accessible in cold settings, especially important during the harsh winter months when biological activity is limited by low temperatures.
Textile and Dyeing Industry
In dyeing baths, solution is acid neutraliser and buffering agent. The steady pH control during dye fixation avoids pH oscillations that may lead to colour defects and is especially adapted for high salt, complicated brine situations where consistent process conditions are critical.
Pharmaceutical & Fine Chemical Processing
It may serve as a modest neutralising agent in the synthesis of pH sensitive chemicals. This enables for fine tuning in chemical reactors without leaving behind insoluble contaminants, and is thus beneficial in cases where mineral acids or strong bases could damage the target substance.
20% Liquid Sodium Acetate vs Other Products
Criteria | 20% Liquid Sodium Acetate | Methanol | Glucose | Solid Acetate |
Safety Hazard | Non-hazardous | Highly flammable | Low | Low |
Bacterial Acclimation | 1–3 days | 15–30 days | 3–7 days | 1–3 days |
Sludge Production | Low | Very low | High (filamentous risk) | Low |
Handling Complexity | Pump directly | Requires explosion-proof equipment | Requires dissolution | Requires dissolution tanks |
Winter Performance | Stable above -5°C | Volatile | Stable | Dissolution issues in cold |
Equipment Corrosion Risk | Minimal (low chloride) | Moderate | Low | Depends on purity |
Transport Efficiency | High (concentrated) | Moderate | Low (dilute solutions) | High (dry weight) |
Dosing Precision | Excellent | Good | Moderate | Moderate (variable dissolution) |
Certifications & Compliance
Shanxi Zhaoyi Chemical operates under a fully certified quality and environmental management framework, supporting both domestic and international B2B procurement requirements.
- ISO 9001 — Quality Management System Certification
- ISO 14001 — Environmental Management System Certification
- ISO 45001 — Occupational Health and Safety Management System Certification
Kosher Certification
Halal Certification (applicable food-grade products)
On-site factory audits by domestic and international customers are fully supported. Our environmental facilities and production processes comply with applicable regulatory requirements, helping you manage supply chain compliance with confidence.Supply, Packaging & Logistics
Liquid product filling is rapid, with in-stock orders typically arranged within 24 hours. Standard production lead time is approximately 5–7 working days, and technical inquiries receive responses within 2 hours.
Packaging is available in 1000L IBC totes and Flexibags, both optimized for safe bulk transport of liquid chemical products. We support FOB, CIF, and DAP trade terms, and work with established international freight partners to provide stable, competitive shipping solutions. Assistance with import/export documentation and customs clearance is also available.
Quality Control & Documentation
Every batch is produced to strict internal quality standards and supported by third-party testing upon request. The specification requires sodium acetate concentration at 20% ±0.5% with no stratification or precipitation, ensuring consistent dosing performance across your entire supply chain.
To protect your biological treatment systems from inhibition and corrosion, our product is controlled to keep chloride levels at ≤0.03%. High chloride content — a common indicator of waste salt adulteration — can suppress denitrifying bacteria and corrode pumps and pipelines. Requesting a Certificate of Analysis (COA) showing chloride and sulfate levels is the most reliable way to verify product purity.
Available documentation for 20% Liquid Sodium Acetate includes COA, MSDS, and conformity documents in multiple languages, supporting your internal compliance and import requirements.
FAQ
Q: How competitive is sodium acetate solution price compared to methanol for denitrification?
A：Methanol may appear cheaper per unit volume, but its true cost includes hazardous material handling, specialized storage, extended bacterial acclimatization of 15–30 days, and safety compliance infrastructure. Sodium acetate solution eliminates these hidden costs, delivers results in 1–3 days, and significantly reduces operational risk — making its total cost of ownership highly competitive.
Q: What is the dosing ratio for removing 1g of Total Nitrogen (TN)?
A：Denitrification theoretically requires approximately 2.86g of COD per gram of TN. Accounting for system efficiency and safety factors, a practical dosing range of 4–6g of COD equivalent per 1g of TN is recommended. With a COD value of 150,000–170,000 mg/L, volumetric dosing calculations can be made directly based on influent flow rate.
Q: Will liquid sodium acetate for wastewater freeze during winter storage?
A：A 20% concentration is stable down to approximately -5°C to -10°C. In severe climates, insulated or heat-traced storage tanks are recommended. If freezing does occur, the product returns to solution upon warming without any loss of quality or effectiveness.
Q: Does sodium acetate cause sludge bulking like glucose-based carbon sources?
A：No. Glucose supports filamentous bacteria development, which causes bulking and poor sludge settling. Sodium acetate is a short molecule fatty acid that is preferentially consumed by denitrifying bacteria and always has good sludge settling qualities and biological process stability .
Q: How can I check the product is not tainted with waste salts?
A：Request a COA that specifically lists chloride (Cl) and sulfate levels. Pure product should have Cl .03%. High chloride is the key sign of waste salt by-products which limit biological activity and increase equipment corrosion.
Q: What packaging and minimum order quantities are available?
A：The product is available in 1000L IBC tanks and Flexibags, suitable for both regular and bulk procurement. Customized concentrations, formulations, and OEM packaging are available based on your requirements. Contact us to discuss your volume needs and lead time.
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Contact Us
Ready to optimize your process with reliable, high-purity 20% Liquid Sodium Acetate? Contact our team at sxzy@sxzhaoyi.com for pricing, samples, and technical support.
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