Bulk Sodium Acetate Trihydrate
CAS NO.: 6131-90-4
Molecular Formula: CH₃COONa·3H₂O
Molecular Weight: 136.08 g/mol
Character: Colorless or white crystalline material with high water solubility and hygroscopic properties.
Usage: Suitable for large-scale textile dyeing, industrial chemical production, wastewater treatment, concrete additives, heat-storage products, pharmaceutical manufacturing, and food processing where permitted.
Package: 25 kg bags, 500–1000 kg bulk bags, or customized bulk packaging.
Storage: Store in a dry, clean, and well-ventilated warehouse. Keep away from moisture, heat, toxic substances, and strong oxidizers.
- Product Description
Bulk Sodium Acetate Trihydrate – Industrial-Grade Chemical Solution for Manufacturing & Treatment Applications
Shanxi Zhaoyi Chemical Co., Ltd. started up in 1988. Bulk industrial chemicals are what we make. Our production base sits on 27,000 ㎡ and turns out 150,000 tons every year. From that site we ship Bulk Sodium Acetate Trihydrate (CAS 6131-90-4) to industrial buyers around the world. Every batch comes out of ISO, KOSHER and HALAL certified systems. Purity never drops below 99.0%, and impurities stay at very low levels. This colorless crystal dissolves in water with ease and holds its hygroscopic stability well. Plants use it for textile dyeing and for wastewater treatment. Concrete admixtures take it too. So do thermal storage systems and pharmaceutical manufacturing. Bags come in 25kg sizes, right up to custom 1000kg ton bags. That setup keeps large-scale continuous production running for clients across Europe, America and Asia.

Key Features & Benefits
Large-scale industrial processing is what our this product is built for. It clears up a lot of production headaches. Dissolving takes almost no time. Batching and production cycles in textile dyeing get shorter because of that. pH buffering is strong as well. Inside complex water systems the acid-base balance stays steady, so wastewater treatment equipment keeps running without upsets.
Formulators of construction materials get a fast concrete setting accelerator from the hygroscopic behavior of this product. Normal work carries on. In low-temperature and cold weather, concrete cures quickly. Thermal storage performance holds steady too. For heat preservation building materials and portable heating equipment, that makes it a core functional material.
Strict purification rules govern how this chemical is made, and those rules line up with industrial-grade standards. Impurity levels inside it stay very low. Equipment does not corrode when a plant runs it year after year. The finished product stays clean as well. Because of this, maintenance bills drop for the company. Production and processing equipment also keeps working for more years.

Technical Specifications
Parameter | Specification |
Chemical Formula | CH₃COONa·3H₂O |
CAS Number | 6131-90-4 |
Molecular Weight | 136.08 g/mol |
Appearance | Colorless/white crystalline solid |
Purity | ≥99.0% |
Water Solubility | 76.4 g/100 mL (20°C) |
pH (5% solution) | 7.5–9.2 |
Heavy Metals | ≤10 ppm |
Loss on Drying | 36%–40% |

How It Works
Anhydrous products act in a different way. Inside this product, the full trihydrate crystal structure carries three water molecules held in stable bonds. Higher solubility and a milder reaction come out of that. Drop it into water and it splits apart completely, into sodium ions and acetate ions. A reversible acid-base buffering system takes shape this way. Extra acid and alkali in the solution get canceled out on the spot, so pH values stay locked and steady.
Textile processing is one place where it shows up. There it acts as a strong mordant. Stable coordination complexes form between it and metal-based dyes. That helps the dye spread evenly and cling firmly onto fabric fibers. Both dyeing uniformity and color fastness come out better. Sewage treatment projects use it as well. Acetate ions there hand denitrifying bacteria a carbon source they can take up right away. Biological nitrogen removal gets much faster. Water treatment results improve overall too.
For concrete work, it brings down the freezing point of the water held inside cement mixes. The cement hydration reaction speeds up as well. Both effects together mean the concrete cures fast and holds steady in freezing weather. Strength and durability of the finished structure do not change.
Applications
Industrial Chemical Processing: In organic chemical manufacturing it is used as a synthesis reagent and as a neutralizing agent. Reaction kinetics hold steady, so the outcome is easy to predict. That is what makes it a dependable raw material for standard batch runs. Continuous processing suits it just as well.
Textile & Leather Industries: Here it acts as a dyeing auxiliary and a pH stabilizer. One process it fits well is reactive dyeing of cotton and polyester blended fabrics. The pH level stays steady during chrome tanning and fixation of leather. So the finished product keeps a consistent quality.
Environmental Treatment: City sewage plants and factory treatment works take it on as a biological carbon source. It costs little and performs well. Nutrient removal systems also work better with it in the mix. Denitrification stays steady even through the cold months, so capacity does not swing around.
Construction Materials: In winter concrete it acts as a special admixture, for pours that happen in freezing weather. Handling the mix gets easier. Setting and curing both move faster. Crews run into fewer delays, and a project spends less money on heat curing.
Bulk Sodium Acetate Trihydrate vs Other Products
Feature | Bulk Sodium Acetate Trihydrate | Sodium Acetate Anhydrous | Calcium Acetate |
Water Content | 36–40% (trihydrate) | 0% | Varies |
Solubility Speed | Fast | Moderate | Slow |
pH Buffering | Excellent | Good | Limited |
Cost Efficiency | High | Medium | Medium |
Hygroscopicity | Moderate | Low | High |
Storage Stability | Good (dry conditions) | Excellent | Requires moisture control |
Certifications & Compliance
Our entire production system strictly complies with ISO 9001:2015 quality management standards, realizing full-process standardized supervision to ensure 100% batch-to-batch quality consistency. We hold valid KOSHER and HALAL certifications to meet the compliant procurement needs of special industries and regional markets.
All products pass EU REACH registration requirements and conform to chemical safety regulations in North America, Asia and other regions. For every batch of exported goods, we can provide complete supporting documents including MSDS safety data sheets and official COA analysis certificates to support customers’ customs clearance and product filing.

Packaging Options
Standard Configurations: Different order volumes call for different packaging, so we offer Bulk Sodium Acetate Trihydrate in several ordinary types. One is a 25kg multi-layer moisture-proof paper bag with a PE inner liner. A second choice is a 500kg jumbo bag fitted with a discharge spout. We also supply 1000kg FIBC bulk ton bags. Every one of them is easy to stack, simple to move, and ready for automatic feeding.
Customized Solutions: Your receiving equipment and the way your freight moves shape the packaging you order. We build to that. For big, long-term orders, we handle palletized packaging, containerized bulk delivery, and tanker direct transport. That lowers your total buying and shipping costs.

Manufacturing Process
Our process uses advanced controlled crystallization. One raw material we pick is pharmaceutical-grade acetic acid. The other is pharmaceutical-grade sodium carbonate. Each one is high purity. Stainless steel reactors hold the synthesis reaction. During that step, we watch temperature and pH live. The raw materials then react fully and completely.
After the reaction, the mixture goes through precise centrifugal separation. Next, multi-stage gradient crystallization takes place. It forms standard trihydrate crystal structures. An automatic constant-temperature drying system keeps product moisture content within the set range. At several key production points, online quality inspection equipment checks product purity in real time.
Before packaging, finished products go through metal detection. Then they pass particle sieving screening. All packaging work happens in a dry, dust-free workshop with constant temperature. This avoids secondary contamination. That way, the product stays fully stable and intact during long-distance transport and storage.
Why Choose Us
With 36 years of professional acetate product production and R&D experience, we have mature production technology and rich application experience. The annual production capacity of 150,000 tons guarantees sufficient inventory reserves and stable supply, effectively solving the problem of tight supply during industry peak seasons.
We provide one-stop professional technical after-sales service. Our professional technical team can offer targeted application guidance, process optimization suggestions and on-site troubleshooting support according to customers’ actual production scenarios, with laboratory testing services to verify product quality.
Our factory is located in Shanxi with geographical location and perfect port and railway logistics networks, which can effectively reduce customers’ landed cost. We have multi-region warehousing layout in China to realize rapid delivery and shorten order lead time.

FAQ
Q: What is your MOQ for bulk orders?
A: A1: Our minimum order quantity is 1 ton for flexible trial orders. Full-container (20-ton FCL) international shipments are available with exclusive preferential unit prices for bulk buyers.
Q: How do we keep the product stable during long storage?
A: A2: Store the sealed packs in a dry warehouse. Keep the temperature under 30°C. Crystals lose water when goods sit in heat over 40°C for a long time. That affects how well they dissolve. So keep them out of hot storage areas.
Q: Can you treat the product against caking for humid tropical markets?
A: A3: Yes. We provide optional professional solutions, including adding 0.1–0.3% food-grade silica anti-caking additives and thickened moisture-proof packaging to adapt to high-humidity transportation and storage environments.
Q: What is the delivery cycle for standard and customized packaging?
A: A4: Standard packaging orders leave in 7–10 working days. Custom packaging takes 15–20 working days. How long it takes depends on the process and the specs involved.
Q: Can you provide the complete set of regulatory documents for a customs declaration?
A: A5: Yes, we can. You get a full set of official papers. That covers the COA and the MSDS, plus non-hazardous certificates and compliance files for your region. They help clear customs anywhere in the world and they help with regulatory filing at your company.

Request a Quote
Have a detailed procurement demand? Email it to sxzy@sxzhaoyi.com. A formal quotation will be sent back to you for Bulk Sodium Acetate Trihydrate within 24 hours. Factory Environment.


