Fresh-Keeping Sodium Diacetate
CAS NO.: 126-96-5
Molecular Formula: C4H7NaO4
Molecular Weight: 142.09
Character: White crystal powder.
Usage: Sodium diacetate has the features of high efficient antiseptic, retain freshness and nutritive value improving function. It is widely used in feed and food industry. In industrial field it is used homogenization agent, mordant and acidulant and PH modifier.
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 Diacetate | Food-Grade Preservation Agent | Broad-Spectrum Antimicrobial Solution
Fresh-Keeping Sodium Diacetate (E262ii, CAS No. 126-96-5) is a white crystalline powder composed of sodium acetate and acetic acid in a 1:1 molar ratio. This product comes from Shanxi Zhaoyi Chemical Co., Ltd., A veteran in the acetate sector with 30+ years of experience and capacity of 150,000 tonnes per annum, giving antibacterial protection, moisture retention and nutritional preservation in one formulation with great efficiency. Molecular weight : 142.09 Chemical formula : C4H7NaO4 Standards: Food additive standards like GB 2760. It is used in food processing, feed manufacture and other industrial applications internationally.
Technical Specifications
Parameter | Food Grade Standard |
Acetic Acid Content | 39.0-41.0% |
Sodium Acetate Content | 58.0-60.0% |
Moisture | ≤2% |
Heavy Metal (as Pb) | ≤0.001% |
Arsenic (As) | ≤0.0003% |
pH Value | 4.5-5.0 |
Formic Acid & Oxidizable Substances | ≤0.2% |
Molecular Formula | C4H7NaO4 |
Molecular Weight | 142.09 |
CAS Number | 126-96-5 |
Appearance | White Crystal Powder |
What Is Sodium Diacetate and How Does It Work?
E262, sodium diacetate, a food preservative, is more than just an acidifier. It behaves as a real molecular preservation complex. In a water environment it gives out free acetic acid which goes straight through bacterial and mould cell membranes. This upsets the equilibrium of the intracellular pH and deactivates the key enzyme activity – in effect, preventing microbial development at its source.
This mechanism makes it far more effective than single function preservatives. You get antibacterial protection, pH control and keeping flavour all in one.
It covers critical food safety issues like Bacillus subtilis (rope spores in baking), Listeria monocytogenes in ready-to-eat meats, and mould in feed and food environments of high humidity.
Key Product Characteristics
As a sodium diacetate freshness preservation agent, this product offers several functional benefits to solve actual manufacturing problems:
Broad spectrum antimicrobial action. It inhibits the formation of germs and mould and prolongs the shelf life of food 2-3 times longer than untreated products. This is an advantage over single-function drugs that act on just one kind of microorganism.
Defence against moisture and texture. It effectively prevents food moisture loss, eliminating the usual drying, hardness and texture loss associated with storage or transport. The physical quality and the nutritional value are maintained.
Clean taste profile. Unlike high dosage calcium propionate or liquid vinegar based systems, it does not leave a chemical aftertaste. This is a good choice for clean-label product compositions when flavour integrity is important.
Low toxicity and a safe residual profile. It conforms with national and international requirements for food additives. In animal feed applications it is entirely metabolised via the Krebs cycle to carbon dioxide and water with no tissue or milk residual.
Non-corrosive crystalline form. The solid powder form does not corrode mild steel or stainless steel mixing equipment, resulting in reduced maintenance for food and feed manufacturing lines.
Application Scenarios
Food Industry
In bread manufacturing, this solution solves the “rope” contamination issue produced by Bacillus subtilis without the harsh vinegar odour of liquid preservative alternatives. It is also utilised in ready-to-eat meat products to provide a vital safety barrier against Listeria across the cold-chain operations.
It is used as a homogenising agent, mordant, acidulant and pH modulator in industrial applications and is thus widely used in a variety of product categories.
Feed Industry
Recommended addition rates by feed type:
Feed Type | Recommended Addition Rate |
Livestock and poultry feed | 0.1% – 0.3% |
Aquatic feed | 0.2% – 0.4% |
Pet feed | 0.1% – 0.2% |
Silage feed | 0.3% – 0.5% |
In case of high risk, high moisture feeds or in hot and humid environments the dose level may be raised to 0.5%. Customers are advised to perform small-scale experiments depending on the actual moisture content and storage conditions before application.
Fresh-Keeping Sodium Diacetate vs Other Products
Feature | Our Sodium Diacetate | Calcium Propionate | Liquid Acetic Acid | Potassium Sorbate |
Antimicrobial Spectrum | Bacteria + Mold | Primarily Mold | Bacteria + Mold | Mold |
Taste Impact | Neutral/Enhanced | Bitter at High Dose | Strong Pungent Odor | Neutral |
Equipment Corrosion | Non-corrosive | Non-corrosive | Highly Corrosive | Non-corrosive |
Moisture Retention | Excellent (+15%) | Poor | None | Poor |
Handling Ease | Free-flowing Powder | Powder | Liquid (Hazardous) | Powder |
Clean Label Friendly | Yes | Moderate | No | Yes |
Agglomeration Rate | <5% | Variable | N/A | Variable |
Quality Control and Production Standards
Shanxi Zhaoyi Chemical Co., Ltd. is located in a 27,000 m 2 plant with flexible production lines, which ensures the consistency of each batch. Our standard manufacturing lead time is 5-7 working days. 24 hour delivery is available for in-stock orders.
All batches come with comprehensive paperwork including COA, MSDS and compliance certifications in several languages. Full assistance to factory audits by local & foreign customers.
Certifications & Compliance
Shanxi Zhaoyi Chemical Co., Ltd. holds the following verified certifications:
· ISO 9001 — Quality Management System
· ISO 14001 — Environmental Management System
· ISO 45001 — Occupational Health and Safety Management System
· Kosher Certification
· Halal Certification (applicable food-grade products)
These certifications support your Fresh-Keeping Sodium Diacetate supplier qualification process and simplify compliance documentation for regulated markets in Europe, North America, and beyond.
Packaging and Supply
· Standard packaging: 25 kg plastic woven bags
· Bulk packaging: 1,000 kg ton-bags
· OEM packaging and labeling available upon request
Store the goods in a dry and ventilated warehouse, avoid heat and moisture. Do not come into contact with toxic chemicals and be cautious to avoid containers from being damaged in transit.
Long-term cooperation with international freight partners ensures inexpensive shipping rates and consistent delivery to global destinations.
FAQ
Q: What are the preservation qualities of sodium diacetate in relation to calcium propionate?
A: The action of calcium propionate against mould is limited in scope. Sodium diacetate works on bacteria and mould and, at effective concentrations, doesn't affect flavour, which makes it more acceptable for clean-label and multi-threat applications.
Q: Will it damage food processing or feed mixing equipment?
A: No. The crystalline solid form is non-corrosive to mild steel and stainless steel unlike liquid organic acid systems.
Q: What is the withdrawal time for animal items like milk or meat?
A: There is no withdrawal period. The animal completely metabolises the substance via the Krebs cycle and it does not leave residues in tissue or milk.
Q: What is the suggested dose for mould prevention in hot humid climates?
A: The regular prophylactic dose is 0.1%-0.2% (1-2 kg per tonne). In trials, 0.3%–0.5% has been used for high risk or high moisture diets.
Q: Does it influence the quality of milk from cows?
A: Sure, yes. The acetate component stimulates de novo fatty acid synthesis in the udder and may enhance the milk fat content.
Q: What food safety standards is this product compliant with?
A: It is in compliance with GB 2760 and fulfils the international food additive criteria as E262ii. Supporting documentation, COA and MSDS are available upon request.
Contact Us
Get a quote or request a Fresh-Keeping Sodium Diacetate sample today — email sxzy@sxzhaoyi.com and our team will respond within 2 hours.
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