Preservative Sodium Acetate Trihydrate

Preservative Sodium Acetate Trihydrate — Food-Grade Mold Inhibitor & pH Buffer for Industrial Applications

Preservative Sodium Acetate Trihydrate (CAS No. 6131-90-4) is a high-purity, food-safe antimicrobial agent produced by Shanxi Zhaoyi Chemical Co., Ltd., a producer with over 30 years expertise in the acetate sector. In a 27.000 m² factory with an annual capacity of 150.000 tonnes we produce and guarantee batch to batch uniformity at cheap pricing. This product is in compliance with GB2760, Kosher and Halal approved, has a wide antibacterial spectrum and excellent inhibition to aflatoxins, which is a reliable solution for food processing, feed and cosmetics sectors worldwide.

Technical Specifications

What Is Sodium Acetate Trihydrate and Why Does It Matter?

Sodium acetate trihydrate (CH3COONa 3H2O) is a white crystalline material. Its molecular weight is 136.08 and its melting point is 58°C. It has a specific gravity of 1.45, and is easily soluble in water and alcohol.

E262 is a preservative sodium acetate which acts via moderate acidification at the microbial cell level, to interfere with microbial metabolism, without imparting any damage to people or animals. This is significantly different to traditional preservatives such as benzoates or synthetic antifungals.

And since it's weakly alkaline, it offers mild pH buffering, so you get two functional advantages – preservation and pH stability – from one substance.

Key Product Features

High purity and strict impurity control

It is 58-60% pure, and the chloride concentration is maintained at <0.03%. This tight quality control assures reproducible preservation performance from manufacturing batch to production batch.

Wide antibacterial spectrum

It is active against molds, yeasts and Gram positive bacteria. Especially good is the inhibition of aflatoxin-producing fungi – a major problem in the storage of grain and the production of animal feed.

Good Flowability — No Caking

The product has good flowing properties and is resistant to caking during storage. This makes dosing and mixing easy in both automatic and manual manufacturing lines.

Non-Toxic and Environmentally Safe

And unlike typical poisonous preservatives, this substance does not leave behind dangerous residuals. It is safe to use in sensitive supply chains, such as those for food, feed and personal care items.

Cost-Effective Versus High-End Alternatives

Compared to potassium sorbate and similar premium preservatives, sodium acetate trihydrate offers a lower unit cost. Because effective dosing rates are small, the total application cost is significantly reduced.

Preservative Sodium Acetate Trihydrate vs Other Products

Core Application Scenarios

As a sodium acetate mold inhibitor, this product covers a wide range of industrial and food-grade preservation needs.

Food Processing

It is often used in bread, pastries, meat items and pickled meals. It does not modify the taste profiles, texture or color during manufacture and is compatible with other culinary ingredients.

Grain and Feed Storage

In grain storage (wheat, corn, soybeans) and animal feed manufacturing, mold contamination causes significant economic losses. The broad antifungal activity of this product — especially against aflatoxin-producing strains — directly addresses this risk.

Cosmetics and Personal Care

Its gentler alkalinity and safety profile make it an ideal option for use in lotions, creams and other topical treatments . It is readily included in complex constituent matrices and has no known interaction issues.

Industrial Applications

It also provides antimicrobial protection in adhesives, coatings, printing and dyeing processes, and certain wastewater treatment scenarios where microbial control is required.

Certifications & Compliance

Shanxi Zhaoyi Chemical has a complete set of management system certification and product level compliance documents for Preservative Sodium Acetate Trihydrate to ensure your purchase and regulatory requirements.

All products are supplied with COA, MSDS, and conformity documents. Multilingual versions are available upon request. On-site factory audits by domestic and international customers are supported.

Packaging & Storage Guidelines

Packaging Options

• 25 kg inner plastic / outer woven bags
• 1,000 kg ton bags for bulk orders

Storage Requirements

• Store in a cool, dry warehouse with relative humidity ≤ 65%
• Keep away from strong oxidants and acidic substances
• Avoid moisture, direct heat, and physical crushing of packaging
• Once opened, reseal promptly and use within 48 hours to prevent moisture absorption and performance degradation
• Shelf life: 12 months in unopened condition; re-inspection required if expired

  

   

Why Source from Shanxi Zhaoyi Chemical?

Enjoy direct factory price with 150,000 tons yearly manufacturing capability. Standard orders will be sent within 5-7 working days and stock products may be sent within 24 hours.

Free samples from 500g to 25kg are offered for verification of preservation performance before placing complete orders by assessing collaboration sincerity. Technical help is accessible 24 hours a day, 7 days a week. Addition ratio advise relevant to your application.

We are a certified producer of Sodium Acetate Trihydrate Food Preservative. We provide OEM labeling, bespoke package forms and flexible trading terms like FOB, CIF and DAP.

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FAQ

Q: Is this product approved for direct food contact applications?

A: Yes. It is in accordance with GB2760 food additive standard, and has Kosher and Halal certifications, so it may be directly used in food processing and feed production.

Q: What micro-organisms is sodium acetate trihydrate an efficient inhibitor for?

A:It inhibits the growth of certain kinds of moulds, yeasts and Gram-positive bacteria. It is quite effective against aflatoxin producing fungal strains, which is especially important in grain and feed storage.

Q: How does potassium sorbate compare to preservative E262 sodium acetate?

A: Both are recognised and used as food grade preservatives. Sodium acetate E262 is cheaper per unit and it has the added function of buffering the pH. It is appropriate to use in situations where mild alkalinity is acceptable or desired.

Q: Storage condition after opening ?

A: Seal the bag again shortly after usage. Store any remaining product in a cool, dry location. Use within 48 hours after opening to minimise moisture absorption which may change crystal structure and preservation efficacy.

Q: Do you provide OEM labelling or custom packaging?

A: Yeah. We provide custom packaging sizes, OEM labels and multilingual documentation like MSDS and COA to cater for different market demands.

Q: What is the minimum order quantity and lead time?

A：For standard stock products, delivery can be arranged within 24 hours. Bulk orders generally require 5–7 working days. Sample requests of up to 25 kg are available for qualified buyers before placing commercial orders.

Contact Us

Ready to request a sample or discuss your supply requirements for Preservative Sodium Acetate Trihydrate? Contact our team at sxzy@sxzhaoyi.com  — we respond within 2 hours.​​​​​​​