Acetic acid sodium salt
CAS NO.: 126-96-5
Molecular Formula: CH₃COONa·CH₃COOH / C₄H₇NaO₄
Molecular Weight: 142.09 g/mol
Character: White crystalline powder composed of sodium acetate and acetic acid in a stable molecular association. It is soluble in water and has a mild acetic acid odor.
Usage: Mainly used as an acidity regulator, preservative-support ingredient, buffer, flavoring component, antimicrobial additive, and chemical intermediate. Food applications must comply with the regulations of the destination market.
Package: 25 kg paper bag or plastic woven bag with an inner polyethylene liner.
Storage: Store tightly closed in a cool, dry, and well-ventilated place. Keep away from moisture, heat, strong oxidizing agents, and contamination.
- Product Description
Acetic Acid Sodium Salt – Industrial Grade Buffer & Preservative Solution from Trusted Manufacturer
Shanxi Zhaoyi Chemical Co., Ltd. started in 1988. For more than 35 years, the company has made acetate products. That work has given us deep experience in industrial production and exports. Our main product, acetic acid sodium salt, comes as a white crystal compound with high purity. Its CAS number is 126-96-5, and its molecular formula is C₄H₇NaO₄. The chemical does two jobs: it buffers pH and helps stop bacteria from growing. We make it in a 27,000 ㎡ standardized manufacturing base. Yearly output reaches 150,000 tons. The molecular weight stays at 142.09 g/mol. Certifications include ISO, KOSHER, and HALAL. Every batch keeps the same quality. It is a low-cost core material for food processing. Wastewater treatment plants use it too. Pharmaceutical synthesis depends on it. Many other industrial applications also rely on it.

Key Features & Benefits
Most acetate products do only one job. Our this product does two. It also works in a steady way across industrial use. That gives downstream production and formula tuning real value.
Stable pH Buffering Performance
The product forms when sodium acetate and acetic acid join in a stable molecular mix. This creates a balanced acid-base system. In complex formulas and production settings, it fights sharp pH swings. System activity stays steady. That matters for standardized food preservation and for ongoing industrial production.
Works in Many Industries and in Food Grade Settings
Acidity stays under control when this is used in industry. It also keeps germs from growing, since it acts as a preservative. Another task it takes on is that of a chemical intermediate. So where does it turn up? Food processing is one place. Textile dyeing is another. Drug synthesis uses it too. Oilfield service work relies on it, and so does wastewater treatment. For business buyers, that adds up to better output in more than one area.
It Dissolves in Water Without Trouble and Acts Quickly
Anhydrous sodium acetate takes longer to break down in water, and it does not mix as fully. This product is quicker and leaves nothing behind. No clumps form. No residue settles out. Batching at the plant becomes simpler. Prep time before production gets shorter. Automated lines also run at a better rate.
Global Certified Reliable Quality
Every product goes through ISO quality management system certification. KOSHER and HALAL food-grade certificates are held as well. Each batch can be traced from start to finish, and it matches the main international regulatory standards. Clients then clear market access audits in different regions with no trouble.

Technical Specifications
| Parameter | Specification |
|---|---|
| CAS Number | 126-96-5 |
| Molecular Formula | CH₃COONa·CH₃COOH (C₄H₇NaO₄) |
| Molecular Weight | 142.09 g/mol |
| Appearance | White crystalline powder |
| Odor | Mild acetic acid |
| Water Solubility | Highly soluble |
| pH (1% solution) | 4.5–5.5 |
| Purity | ≥98.0% |
| Loss on Drying | ≤2.0% |
How It Works
One molecule does two jobs here. Free acetic acid and sodium acetate act together to buffer and to stop bacteria from growing. Sodium acetate brings mild alkalinity, which balances the acidic substances left over in the system. Antibacterial activity from the free acetic acid lasts a long time.
Mix acetic acid with acetate ions and a system forms that shifts back and forth. pH changes coming from acid or base added outside get countered by it. Sensitive formulas stay steady. When the acid-base balance drifts, products also avoid spoiling or losing performance.
When acetic acid is undissociated, it can pass through the membranes of microbial cells. Inside the cell, the pH falls. Bacterial enzymes quit working. The cells cannot reproduce. Products that are already finished stay good longer on the shelf. It also purifies industrial water conditions, and that helps with preservation and sterilization.

Applications
Our this product delivers stable dual functions of buffering and preservation, serving as a cost-effective core material for multiple industries with strict quality requirements:
Food & Beverage Industry
Processed meat, canned food, sauces, and other products rely on it as a professional food-grade acidity regulator and preservative. Taste improves. The pH of the mix stays stable. Bacteria cannot grow, so the product lasts longer.
Wastewater Treatment
In municipal and industrial wastewater treatment, this material provides a carbon source for denitrification. It does that job well. Microbial activity increases. Nitrogen and phosphorus are removed more effectively. The total treatment bill also drops.
Textile Dyeing Industry
Dyeing and finishing baths use it as a pH buffer. While fabric moves through the process, the acid-base balance holds steady. Dye soaks in evenly. Fiber damage and color difference defects stay away.
Pharmaceutical Synthesis
In API synthesis and pharmaceutical formulation, it is used as a professional chemical intermediate and a pH stabilizer. Purity is high, so it meets the standards for medical auxiliary materials.
Oilfield Industrial Services
Completion fluids and working fluids in the oilfield count on it as a corrosion inhibitor. Downhole equipment and pipelines get eaten away by acidic formation water. This additive stops that attack. So the oilfield keeps running without trouble.
Acetic Acid Sodium Salt vs Other Products
| Feature | Acetic Acid Sodium Salt | Sodium Acetate Anhydrous | Potassium Acetate |
|---|---|---|---|
| Molecular Weight | 142.09 g/mol | 82.03 g/mol | 98.14 g/mol |
| Buffering Range | pH 4.5–5.5 | pH 7.0–9.0 | pH 7.0–9.0 |
| Antimicrobial Activity | High | Moderate | Moderate |
| Solubility Rate | Fast | Moderate | Very Fast |
| Food-Grade Cost | Lower | Higher | Highest |
| Dual Functionality | Yes (buffer + preservative) | Buffer only | Buffer only |
Certifications & Compliance
Our production base strictly implements ISO 9001:2015 quality management system standards to realize standardized control of the whole production process. The products hold valid KOSHER and HALAL certifications, fully compliant with international food-grade application specifications.
All products meet China’s GB/T 2760 food additive standards for Acetic acid sodium salt and FDA GRAS safety regulations. Each batch is delivered with an official Certificate of Analysis (COA), with complete test data of purity, heavy metals and other core indicators to support customer customs clearance and quality inspection.

Packaging Options
We provide diversified packaging solutions for different procurement volumes and export scenarios, effectively preventing moisture and damage during transportation and storage:
Standard Industrial Pack: paper bags of 25 kilograms each, with a PE lining on the inside. They fit general batch orders and the usual kind of warehouse storage.
Reinforced Export Pack: the woven bags take 25 kilogram loads and come with a reinforced PE liner. Long multimodal export routes give them no trouble. Scratches and punctures never get through.
Bulk Jumbo Pack: super sacks are made in 500 kg and 1000 kg sizes. Big industrial buyers pay less for packaging. Loading also moves faster.
Customized Service: We help with private labeling and packing specs that fit what the client asks for (MOQ applies).

Manufacturing Process
For raw materials, we pick high-purity grades. These include food-grade sodium carbonate and glacial acetic acid. Every supplier holds certification, and each delivery comes with full traceability documents. Production then takes place in closed reaction kettles with temperature control. We hold the ratios tightly, so the neutralization reaction runs to completion and the molecules bind into stable structures.
Crystallization runs at a constant temperature, then the material cools in stages. That gives a uniform particle size. Fluidized bed dryers pull the moisture down into the standard range. Next comes fine screening. Purity, pH and heavy metal levels all get checked. Packaging happens in a dust-free workshop. The result is steady product quality.
Why Choose Us
Professional Acetate Manufacturing Experience
We have focused on acetate chemical production since 1988, with professional technical accumulation and rich production experience, able to solve various formulation and application problems for customers.
Stable Large-Scale Supply Capacity
We can make 150,000 tons per year. Raw material stock is big too. Supply stays steady and on time. That holds true even in peak buying seasons. So a supply shortage won't put customer production at risk of shutting down.
Mature Global Export System
We have long-term cooperative logistics teams and complete export document processing capabilities, serving customers in Europe, America, Asia and other regions, simplifying the whole procurement process for overseas buyers.
Free Professional Technical Support
Our chemical technical team has skilled people. They give free help with formula matching and dose advice. Compatibility testing is free too. Customers use this to lower production costs and get better product performance.
Transparent Factory Direct Pricing
Manufacturers sell direct. No middleman markup gets added on. Long-term customers get volume discounts we can change, and they can pay in more than one way.

FAQ
Q: At its core, what sets your product apart from plain sodium acetate trihydrate?
A: A1: Plain sodium acetate trihydrate has one job. It keeps pH steady. Our this product has acetic acid bound into its structure. That means it controls pH and stops bacteria from spoiling the mix. Food and industrial formulas get more use out of that.
Q: Can this product replace citric acid for food preservation?
A: A2: Yes. It delivers better inhibitory effect on gram-negative bacteria, with milder taste and no sharp sourness of citric acid, effectively improving the taste and shelf life of food products.
Q: How long does it keep, and what storage conditions do you require?
A: A3: Keep it sealed and dry, and it lasts 24 months. The temperature must stay below 30°C. Humidity must stay below 60%. Moisture makes it cake. Direct sunlight and high heat cause the same problem. Keep it away from both.
Q: In wastewater treatment, can it be used with chlorine-based disinfectants without problems?
A: A4: Oxidizing conditions don't break it down. Keep it in its own container. Dilute it before you add it to the treatment tank. This means you never mix it straight at high concentration.
Q: Can customers get free samples to test out?
A: A5: Yes. We provide 500g-1kg official test samples with complete COA reports to support customers’ formula compatibility and performance testing.
Q: What certifications can be provided for customs clearance?
A: A6: We can provide ISO, KOSHER, HALAL certificates, batch COA, factory qualification documents and other full-set customs clearance materials to meet the import requirements of various countries.

Request a Quote
Feel free to contact our professional sales team about Acetic acid sodium salt via sxzy@sxzhaoyi.com to obtain exclusive quotations, and sample service support tailored to your procurement volume.


