Description

Sodium Propionate CAS NO 137-40-6 is the sodium salt of propionic acid, a widely used and highly effective food-grade preservative and mold inhibitor. Its primary value lies in its ability to extend shelf life and ensure product safety by preventing the growth of molds, yeasts, and certain bacteria. This makes it an essential ingredient for manufacturers in the food and feed industries seeking reliable, cost-effective preservation solutions.

Application

• Food Preservation: Primarily used in baked goods (bread, cakes, tortillas), dairy products (cheeses), and processed meats to inhibit mold and extend shelf life.
• Animal Feed Additive: Acts as a preservative in feed and silage to prevent spoilage and mycotoxin formation, ensuring feed safety and quality.
• Pharmaceutical Excipient: Employed as a preservative and pH-adjusting agent in certain topical formulations and oral solutions.
• Cosmetics & Personal Care: Used as a safe and effective preservative in creams, lotions, and other water-based products to prevent microbial contamination.
• Industrial Applications: Functions as a fungistatic agent in adhesives, paints, and textiles to protect against mold growth in humid conditions.

Basic Information

Product Name	Sodium Propionate
CAS No.	137-40-6
Molecular Formula	C3H5NaO2
Molecular Weight	96.06 g/mol
Synonyms	Propionic Acid Sodium Salt; Sodium Propanoate; Napropion; Mycoban; Propanoic Acid Sodium Salt; E281; Natriumpropionat
EINECS	205-290-4

Quality Control

Our Sodium Propionate is manufactured under strict quality management systems. We offer grades compliant with major international standards, including FCC (Food Chemicals Codex) and E281 specifications for food applications. Every batch undergoes rigorous analytical testing to ensure purity, identity, and safety. A comprehensive Certificate of Analysis (COA) is provided with each shipment to guarantee product consistency and regulatory compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent caking and degradation due to moisture absorption.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (on dried basis)	99.0% - 100.5%
pH (10% solution)	7.5 - 9.0
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.