natrium acetate trihydrate
CAS NO.: 6131-90-4
Molecular Formula: CH₃COONa·3H₂O
Molecular Weight: 136.08 g/mol
Character: Colorless or white crystalline material, readily soluble in water and hygroscopic.
Usage: Used in textile processing, chemical buffers, pharmaceuticals, electroplating, laboratory analysis, and wastewater treatment.
Package: 25 kg plastic woven bag with an inner liner or 1000 kg ton bag.
Storage: Store in a dry, cool, and well-ventilated warehouse.
- Product Description
Natrium Acetate Trihydrate – High-Purity Chemical Solution for Industrial & Pharmaceutical Applications
Industrial-gradenatrium acetate trihydrate (CAS 6131-90-4) comes from Shanxi Zhaoyi Chemical Co., Ltd. We make it and supply it. Our plant covers 27,000 ㎡. Its equipment is up to date. Output reaches 150,000 tons a year. Buyers around the world get a steady supply at that volume. The product is a colorless crystal. CH₃COONa·3H₂O is its molecular formula. Its molecular weight is 136.08 g/mol. Water dissolves it easily. It also takes in moisture from the air.

Key Features & Benefits
Our products effectively solves various pain points in industrial production with stable crystalline structure and consistent performance, bringing tangible benefits to clients’ production operations:
- Excellent pH buffering performance: This grade holds pH steady. In wastewater treatment and chemical production, it keeps the level under control. Reactions then run evenly from start to finish.
- Fast dissolution efficiency: It breaks down quickly in water-based solutions. Plants that cannot wait around get their batches moving sooner. Output per shift goes up as a result.
- The product holds up well in storage and during shipping. In both cases, the trihydrate structure copes better than anhydrous sodium acetate. That stops it from breaking down. Performance does not drop off either.
- Reliable quality consistency: We remove internal contaminants, guaranteeing steady and predictable product performance even in temperature-sensitive production processes, thanks to our decades of manufacturing experience and stringent quality control systems.
- Practical hygroscopic property: Its special hygroscopicity allows for accurate moisture control in a variety of application settings, satisfying a range of industrial process needs.

Technical Specifications
We maintain strict production standards to ensure stable product indicators, and the core technical parameters of our products are as follows:
Parameter | Specification |
|---|---|
Chemical Formula | CH₃COONa·3H₂O |
CAS Number | 6131-90-4 |
Molecular Weight | 136.08 g/mol |
Appearance | Colorless or white crystals |
Solubility | Readily soluble in water |
Physical Property | Hygroscopic |
Purity | ≥99.0% (standard grade) |
Loss on Drying | 38.0-41.0% |
pH (1:20 solution) | 7.5-9.5 |

How It Works
Stable chemical and biological reactions make the product work. Its working principles are clear for each scenario:
- How pH buffering works: natrium acetate trihydrate dissolves in water and splits apart into sodium ions and acetate ions. In buffer solutions, it acts as the conjugate base part. Those ions take in acids and alkalis. So the pH of the reaction system stays steady.
- What it does in wastewater treatment: denitrifying bacteria get a carbon supply from it inside biological treatment systems. Water ends up cleaner. Microbial metabolism gets a boost too. Harmful nitrate compounds in the sewage turn into nitrogen gas, which is harmless.
- Pharma application and how it works: the trihydrate crystal structure is stable, so the product dissolves evenly and holds up against heat. Drug makers use it to steady pH and to top up electrolytes. That keeps the final medicine stable and safe.
Applications
With stable performance and high compatibility, our products covers a wide range of industrial and commercial application scenarios:
Wastewater Treatment: It works as a carbon source with high efficiency for biological denitrification. Municipal projects and many industrial plants can use it in their sewage treatment.
Textile Processing: In dyeing and finishing it acts as a mordant and a neutralizing agent. Color fastness rises. The finished fabric also keeps its quality.
Chemical Manufacturing: In chemical synthesis and lab analysis, it serves as a buffering reagent. pH stays steady. Plenty of reactions rely on that.
Electroplating Industry: Metal surface treatment needs acetate ions, and so does the prep of electroplating baths. This grade supplies plenty of them. Metal finishing comes out better because of that.
Pharmaceutical Formulations: Pharmacopeia standards are met. Hospitals count on it for intravenous infusion solutions and for dialysis fluids. Why? It works as a safe electrolyte supplement.
Agricultural Products: Special fertilizers and soil conditioners take them as an additive. Nutrients are then let go in a controlled way. The soil also puts those nutrients to better use.
Natrium Acetate Trihydrate vs Other Products
To help clients select suitable products accurately, we have sorted out the performance differences between our products and similar mainstream products in the market:
Feature | Natrium Acetate Trihydrate | Anhydrous Sodium Acetate | Potassium Acetate |
|---|---|---|---|
Water Content | 38-41% (3H₂O) | <1% | <2% |
Dissolution Speed | Rapid | Moderate | Rapid |
Storage Stability | High (hygroscopic) | Very High | Moderate |
Buffering Capacity | Excellent | Excellent | Excellent |
Cost Efficiency | High | Medium | Lower |
Application Range | Multi-industry | Concentrated uses | Specialized needs |
Certifications & Compliance
Quality System Certification: Our production base has passed ISO 9001 quality management system certification. This has led to standard, consistent production management.
Food & Pharmaceutical Grade Certification: Our goods carry KOSHER and HALAL certificates. They meet what food and medicine makers need.
International Safety Compliance: Each product follows EU REACH rules. It also follows other chemical safety standards used worldwide. So buyers anywhere can sell and use the goods.
Complete Supporting Documents: Papers for customs clearance and compliance come with every batch of goods. That covers what each region asks for.

Packaging Options
Standard Packaging: We pack goods in 25kg plastic woven bags. Each bag has a PE lining inside. That lining blocks moisture. It also keeps the product from clumping. Bags are then easier to move and store each day.
Bulk Packaging: Each jumbo bag holds 1000kg. They work well for large industrial orders. Packaging costs drop. Loading and unloading also speed up.
Customized Service: Both conventional packaging types adopt sealed design to ensure product integrity during transportation. We also support customized packaging solutions according to clients’ special storage and transportation needs.

Manufacturing Process
Our production processes are mature and standardized. That keeps quality steady and the natrium acetate trihydrate crystal structure even:
Raw Material Preparation: We pick high-purity acetic acid and sodium carbonate. These two serve as the main raw materials. That gives the finished product a solid base.
Controlled Reaction: Run the neutralization inside stainless steel reactors. Watch the temperature the whole time. That way the reaction finishes fully and evenly.
Precision Crystallization: We cool the batch in stages. Crystallization stays in check this way. The trihydrate crystals that form are even and stable.
Purification Treatment: The material gets washed with water more than once. Leftover impurities get removed this way. Purity of the product goes up.
Finishing Processing: The product gets fully dried first. Screening comes next. That way the particle size of the finished goods stays constant.
Quality Inspection & Packaging: Before any batch leaves the factory, it gets tested. Passed batches go right to the machines for packing. Contamination risk drops that way.
Why Choose Us
Rich Industry Experience: 35 years of professional chemical production experience, proficient in the production and application characteristics of acetate series products.
Sufficient Supply Capacity: Yearly output reaches 150,000 tons. Long-term bulk orders get covered in full. Supply never stops or slows down because of that.
Professional Technical Support: Technical advice and after-sales service come as one package that runs through the whole buying cycle. Clients also get product application problems solved.
Flexible Order Mechanism: A trial order can start small. Big bulk orders from long-term partners work too. Quotations stay open to change, and order details can be adjusted.
Efficient Global Logistics: We team up with professional logistics firms in many countries. Your goods reach any destination on schedule and in good shape.
Transparent Service Communication: We keep you in the loop the whole way. You get updates as they happen. That starts when we confirm your order and goes on until the shipment is tracked. At any point, you can see where your order is.

FAQ
Q: How long can your acetate trihydrate be kept?
A: A1: Keep it dry, keep it cool, and keep the pack closed. Store it that way and the performance holds steady. Quality does not change. From the production date, that lasts 24 months.
Q: Do you supply food-grade products as well as pharmaceutical-grade ones?
A: A2: Yes. We support customized production of FCC and USP standard food-grade and pharmaceutical-grade products. Please specify your quality requirements when inquiring for quotation.
Q: What is your minimum order quantity?
A: A3: The minimum order quantity is 1 ton (one pallet). Bulk container orders will enjoy more favorable wholesale prices.
Q: Can you provide official product inspection documents?
A: A4: Sure. Each batch of goods is delivered with a complete COA test report. MSDS and other compliance certificates can be provided upon client’s request.
Q: Acetate trihydrate soaks up moisture. What is the correct way to store it?
A: A5: Leave it in the packaging, sealed. Damp air will spoil it, so pick a dry spot to store it. After the pack is open, either use the contents up quickly or tip them into an airtight container. Do that and the material will not cake.
Q: Can product indicators and packaging be customized?
A: A6: Yes. We can adjust product indicators and provide personalized packaging solutions according to clients’ actual application scenarios and procurement needs.

Request a Quote
Please feel free to contact our natrium acetate trihydrate professional sales team via email atsxzy@sxzhaoyi.com.


