Fresh-Keeping Sodium Acetate Anhydrous
CAS NO.: 127-09-3
Molecular Formula: CH3COONa
Molecular Weight: 82.03
Character: white crystal powder; specific gravity is 1.528 and melting point is 324℃.
Usage: It is a kind of chemical raw material and is widely used in dye, pharmaceutical, chemical reagent fields, sewagement and etc.
Package: 25kg plastic woven bag or 1000kg Ton-bag
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
Fresh-Keeping Sodium Acetate Anhydrous — Food-Grade Preservation Solution for B2B Supply Chains
Fresh-Keeping Sodium Acetate Anhydrous (CAS No. 127-09-3) is a high-performance, food-grade antimicrobial agent and pH regulator classified under E262(i). Shanxi Zhaoyi Chemical Co., Ltd. has more than 30 years of experience in the acetate industry. This white crystalline powder melts at 324°C and has a specific gravity of 1.528. The ISO 9001, Halal, and Kosher-certified product has a manufacturing capacity of 150,000 tonnes per year and provides reliable, compliance preservation for food processors worldwide.

Technical Specifications
Parameter | Food Grade Standard |
Content (CH₃COONa) | 99-101% |
Free Alkali | ≤0.2% |
Potassium (K) | ≤0.025% |
Lead (Pb) | ≤0.001% |
Arsenic (As) | ≤0.0003% |
Loss on Drying | ≤2% |
Appearance | White crystal powder |
Molecular Weight | 82.03 |
Specific Gravity | 1.528 |
Melting Point | 324℃ |

What Makes This Product Different From Standard Acetate Forms
Anhydrous form has no water molecules, unlike trihydrate or technical-grade. Precision dosing on automated production lines requires a higher weight concentration of active acetate ions.
This product acts as a buffering agent, stabilising the acidity of the food and providing an environment hostile to spoilage germs. It is especially efficient against Gram-negative bacteria such as Salmonella and E. coli and Bacillus subtilis, which causes"rope" deterioration of baked items.
As a sodium acetate anhydrous food preservative it also inhibits "warmed-over" flavours in processed meats – a long-standing difficulty in the ready-meal business. It lowers the total sodium compared to preservation techniques that depend heavily on salt, while preserves the original flavour, texture and look of the food.

Quality Control: What Every Procurement Team Should Know
One of the biggest pain points when obtaining a sodium acetate anhydrous food preservative is quality consistency. Batch variation has a direct impact on shelf-life performance and the dependability of manufacturing lines.
In Shanxi Zhaoyi, every manufacturing batch undergoes strict quality tests. Loss on drying (LOD) is very well managed and is below 1.0%.” Any level over this produces caking, jams automatic feeding systems and results in improper dosage. All of this compromises the outcome of preservation.
Potentiometric titration is used to confirm uniformity of buffering strength across batches by alkalinity/acidity profiling. Heavy metal analysis (lead, arsenic, mercury) is performed using ICP-MS technology and fully adheres to the FDA and EFSA regulations for food safety.
The particle size distribution is also determined. The powder must be fine enough to dissolve rapidly in food matrices but coarse enough to minimise dusting concerns during mixing and handling.
Bacteriostatic effect data are included with all test results for each shipment. Third-party and on-site manufacturing audits are provided.
Core Application Scenarios
Developed for food processing applications essential for moisture management, microbial suppression and label-clean preservation.
It also inhibits Bacillus subtilis which causes rope deterioration in bakery items ( bread, pastries, rolls ) stored at ambient temperatures. Its sodium acetate E262 freshness action enhances shelf life without impacting crumb texture or crust colour.
Sausage, deli meats and water products include it because it limits the growth of Gram-negative bacteria and heat-processed flavour compounds.
Fruits, vegetables, and cereals that need to be transported long distances or kept in warehouses, particularly in packaging that is sensitive to water or has a low moisture level, benefit greatly from this since liquid preservatives are not appropriate.
Powdered spices, dry-blend formulations, and co-extruded snack foods benefit greatly from its usage for dry preservative dispersion.
Fresh-Keeping Sodium Acetate Anhydrous vs Other Products
Feature | Our Anhydrous Product | Sodium Acetate Trihydrate | Sodium Benzoate | Potassium Sorbate |
Moisture Content | ≤2% | ~39% (water of crystallization) | Low | Low |
Active Ingredient Concentration | 99-101% | ~60% effective content | 99%+ | 99%+ |
pH Buffering Capacity | Excellent | Good | Poor | Poor |
Taste Impact | Neutral/Mild | Neutral/Mild | Bitter aftertaste | Slight odor |
Heat Stability | Excellent (324℃) | Lower (58℃ dehydration) | Good | Moderate |
Application Versatility | Multiple methods | Multiple methods | Limited by solubility | Temperature sensitive |
Storage Stability | No caking | Prone to caking | Stable | Stable |
Cost Efficiency | High (concentrated) | Lower per kg | Moderate | Higher |
Formulation and Dosage Considerations
The key is to get the dosage right. The effective application levels are typically between 0.1 and 0.3 % (w/w) depending upon the food matrix, water activity (Aw) and desired shelf life. You have to undertake product specific research with your formulation team before you can grow.
The anhydrous form is hygroscopic therefore storage conditions are critical. “Keep merchandise in a dry, well-ventilated warehouse, away from heat and moisture. Avoid exposure to harmful substances. After opening reseal packaging.
For automated systems, the hopper and dosing equipment should be suited for fine crystalline powders to avoid bridging or uneven feeding.
Certifications & Compliance
Shanxi Zhaoyi Chemical maintains a full suite of certifications relevant to food-grade chemical supply:
· ISO 9001 — Quality Management System
· ISO 14001 — Environmental Management System
· ISO 45001 — Occupational Health and Safety Management System
· Kosher Certification — Applicable food-grade products
· Halal Certification — Applicable food-grade products
These certificates aid your Fresh-Keeping Sodium Acetate Anhydrous supplier qualification process and help regulatory paperwork for markets in North America, Europe, Middle East and Southeast Asia. The firm is a recognised food grade sodium acetate anhydrous supplier, offering multilingual COA, MSDS, and conformity documentation to ease import compliance.

B2B Supply and Purchasing Advantages
For procurement teams overseeing ongoing food production, supply dependability is not optional. Standard items are in safety stock at Shanxi Zhaoyi, and stock orders are sent within 24 hours Standard manufacturing lead time is 5 to 7 working days
To assist with your internal testing before you place a complete purchase, we provide free samples ranging in weight from 500 g to 25 kg. Technical consultations are responded to within 2 hours during business hours, and 24/7 online assistance for urgent concerns.
Company supports FOB, CIF, DAP trading terms and cooperates with established international freight partners to guarantee reliable shipment schedule. We can also provide OEM labelling and bespoke package forms.

FAQ
Q: What is the product and how does it vary from the trihydrate form?
A: The product (E262(i)) does not have any water molecules and so contains more active acetate ions per gram. The trihydrate form contains around 40% water by weight therefore anhydrous is the preferred choice for dry-blend applications and precision automated dosing.
Q: Is this product permitted for use in food manufacturing?
A: Yes. E262(i) - it is listed as food additive and meets the regulatory standards of FDA and EFSA. The product is also Kosher and Halal certified making it appropriate for a broad spectrum of global markets.
Q: What is moisture content such a big issue in quality control?
A:Loss on Drying must be less than 1.0 percent. Higher moisture levels lead to caking of the powder, blocking automated feed systems and irregular dosing – thus lowering preservation efficacy and increasing production downtime.
Q:What kind of meals does this product help the most?
A: It is mainly used in bakery products, processed meat products, fish, fruits & vegetables and cereals. It works particularly well in low moisture food formats or water sensitive formats where you can't use liquid preservatives.
Q: How fast can you answer to technical or formulation questions?
A: Technical questions are answered within 2 hours during normal business hours. The technical team provides application-specific directions and dose suggestions for challenging formulation issues.
Q: What are the packaging and minimum order options?
A: Standard packaging is in 25 kilogram woven bags or in 1,000 kg tonne bags. Free samples from 500 g to 25 kg for assessment are provided. Please contact the team to discuss minimum purchase quantities and bulk pricing options.

Our Exhibitions

Contact Us
Ready to source a reliable Fresh-Keeping Sodium Acetate Anhydrous supplier? Contact Shanxi Zhaoyi Chemical at sxzy@sxzhaoyi.com to request samples, specifications, or a custom quotation.



