sodium acetate usp
CAS NO.: 6131-90-4 for sodium acetate trihydrate
Molecular Formula: CH₃COONa·3H₂O
Molecular Weight: 136.08 g/mol
Character: Colorless crystals or white crystalline powder, readily soluble in water and slightly soluble in alcohol. Its aqueous solution is mildly alkaline.
Quality Standard: Manufactured to meet the relevant USP pharmaceutical-grade requirements. The exact specification should be confirmed according to the supplied grade, certificate of analysis, and current pharmacopeial monograph.
Usage: Widely used as a pharmaceutical buffering agent, pH regulator, electrolyte ingredient, laboratory reagent, and intermediate in pharmaceutical preparations.
Package: 25 kg fiber drum, paper bag, or plastic woven bag with an inner polyethylene liner.
Storage: Keep the container tightly sealed and store in a cool, dry, and well-ventilated place. Avoid moisture, heat, contamination, and incompatible chemicals.
- Product Description
Sodium Acetate USP - Premium Pharmaceutical Grade Buffer & pH Regulator Solution
Shanxi Zhaoyi Chemical Co., Ltd. began in 1988. That works out to over 30 years of hands-on manufacturing. Our plant takes up 27,000 ㎡. Each year, 150,000 tons of acetate products come off our lines. We supply Sodium Acetate USP (CAS: 6131-90-4) at high purity, and it meets United States Pharmacopeia standards. Its formula is CH₃COONa·3H₂O. The molecular weight is 136.08 g/mol. In appearance, the product shows up as colorless crystals or a white crystalline powder. ISO, KOSHER and HALAL certificates stand behind it. Whether it goes into pharmaceutical formulation, lab research or precision medical production, the performance holds steady.

Key Features & Benefits
Our this product suits pharmaceutical work that runs under strict standards. Being a trihydrate product, it dissolves in water fast and gives a mildly alkaline solution. That makes it a good fit for exact pH control in injectable preparations. Each batch we make goes through testing that follows pharmacopeia standards. Heavy metal content gets a close look, and so do microbial indicators. Results stay steady from one batch to the next. The crystals hold their stability too. Properties stay put during sealed storage and shipping. So degradation and stray impurities are far less likely to show up in your formulations.

Technical Specifications
Parameter | Specification |
|---|---|
Chemical Name | Sodium Acetate Trihydrate |
CAS Number | 6131-90-4 |
Molecular Formula | CH₃COONa·3H₂O |
Molecular Weight | 136.08 g/mol |
Appearance | Colorless crystals or white crystalline powder |
Assay | ≥99.0% (as per USP) |
Water Solubility | Readily soluble in water |
Alcohol Solubility | Slightly soluble |
pH (Aqueous Solution) | Mildly alkaline |
Moisture Content | Approximately 40% (trihydrate form) |
Quality Standard | USP Grade |

How It Works
Combine this product with acetic acid and you get a stable buffer system. In water, it breaks into sodium ions and acetate ions. Those acetate ions then take up the extra hydrogen ions sitting in acidic solutions. What comes out is steady pH control. Pharmaceutical formulas and biological processes need that to run without trouble. In medical use, the product balances electrolytes and keeps physiological pH where it should be. Because of the trihydrate structure, water molecules are released at an even rate during dissolution. So it slips into all kinds of liquid pharmaceutical formulations without a problem.
Applications
Many medical and lab settings put this product to use. In pharma production it works as a buffer for injectable solutions, dialysis fluids, and IV preparations. That keeps the drugs stable and safe. Labs use it to make buffer solutions with a steady pH. They also use it to make biochemical culture media. In medical diagnostics it is a key raw material for detection kits and for reagent prep. Electrolyte formulas for rehydration and electrolyte replacement therapy contain it. It works as a pharma intermediate too, for the synthesis and processing of API and complex drug compounds.
Product Comparison
Feature | Sodium Acetate USP | Industrial Sodium Acetate | Food Grade Sodium Acetate |
|---|---|---|---|
Purity Level | ≥99.0% (USP standard) | ≥98.0% | ≥99.0% (FCC standard) |
Heavy Metal Limits | Extremely strict (<10 ppm) | Moderate (≤20 ppm) | Strict (≤10 ppm) |
Microbial Testing | Mandatory sterility testing | Not required | Limited testing |
Certificate of Analysis | Provided with each batch | Basic COA | Standard COA |
Regulatory Compliance | USP, FDA registered | Industrial standards | FCC, E262(i) |
Application Focus | Pharmaceutical/Medical | Chemical processing | Food & beverage |
Price Point | Premium | Economy | Moderate |
Documentation | Full pharmacopeial documentation | Basic specifications | Food safety documentation |
Certifications & Compliance
Our factory carries full ISO quality management certification. Every production process follows pharmaceutical GMP standards. KOSHER and HALAL certificates are in place, so our products can reach many international markets. Each batch gets fully tested for purity and pH value, plus heavy metals and microbial indicators. You receive an official COA with it, which supports your regulatory filing and batch traceability.
Packaging Options
We offer standardized and customized pharmaceutical-grade packaging. Standard 25kg fiber drums with PE inner liners effectively isolate moisture and prevent contamination. Paper bags and woven bags with inner liners are available as alternatives to adapt to different storage and usage volumes. Custom packaging solutions can be provided for bulk orders. All packages are clearly labeled with batch number, production date and safety operation instructions.

Manufacturing Process for sodium acetate usp
High-purity acetic acid and sodium are where we start, as raw materials. A precise neutralization reaction for sodium acetate usp follows. Temperature and pH stay steady the whole way through. Uniform trihydrate crystals take shape inside stainless steel reactors. Then come washing and centrifugation. Careful drying follows, until the moisture level reaches the standard. Screening and milling bring the particle size to a consistent range. Inspection runs at several points in production. So everything meets USP standards before it ships.
Why Choose Us
Focused production has been our work for 36 years. Our yearly capacity of 150,000 tons keeps supply steady and continuous. As a direct manufacturer, we hold our prices at a cost-effective level. Technical support is one-stop and professional. Large volumes of product ship to Europe. America and Asia receive shipments as well. Every order comes with complete compliant documents. These help with customs clearance and meet global regulatory requirements. Long-term cooperative partnerships are what we aim for. Reliable quality and quick after-sales service hold them together.

FAQ
Q: How is USP grade sodium acetate different from other grades?
A: A1: It meets strict USP drug rules. Limits on heavy metals are very low. The same goes for microbes and other impurities. So it works only for medical and pharmaceutical production.
Q: What is the right way to store this product?
A: A2: Do not open the container. Store it somewhere cool and dry. The area needs steady airflow. Keep it away from moisture and strong heat. Also keep it apart from chemicals it cannot mix with. That way the product stays stable.
Q: Can it be put into injectable pharmaceutical formulas?
A: A3: Yes. Our USP grade sodium acetate meets every quality requirement for injectable preparations. That holds true when you follow standard formulation processes.
Q: Which paperwork comes with each order?
A: A4: Every order comes with full batch paperwork. It includes COA and MSDS, plus other regulatory certificates. These help with your compliance filing and inspection.
Q: Do you offer free product samples?
A: A5: Yes. Sample testing is something we can arrange. That way a client checks how the product behaves with their own formula before placing a bulk order.
Q: How long do USP grade orders take to arrive?
A: A6: Delivery usually runs 2-4 weeks. Once we know your order quantity and the production schedule, the exact lead time is confirmed.

Request a Quote
Feel free to contact our professional sodium acetate usp sales team via sxzy@sxzhaoyi.com.


