Description

Zinc Propionate CAS NO 557-28-8 is the zinc salt of propionic acid, a white crystalline powder valued for its dual functionality as a preservative and a nutritional supplement. This compound is particularly effective in inhibiting the growth of molds and certain bacteria, making it a critical additive for extending shelf life and ensuring product safety. It is primarily sought by manufacturers in the animal feed, food processing, and polymer industries for its stability and efficacy.

Application

• Animal Feed Additive: Used as a preservative and a source of bioavailable zinc in poultry, swine, and ruminant feed to prevent spoilage and support metabolic functions.
• Food Preservative: Employed in baked goods, cheeses, and other perishable food items to inhibit mold and rope bacteria, extending product shelf life.
• Polymer Stabilizer: Acts as a heat stabilizer and fungistatic agent in PVC and other polymer formulations to prevent microbial degradation.
• Nutritional Supplement: Incorporated into vitamin and mineral premixes as a source of essential zinc for human and animal nutrition.
• Industrial Biocide: Used in adhesives, paints, and textile treatments to provide protection against fungal growth.
• Cosmetic Applications: Functions as a preservative in certain cosmetic and personal care formulations to ensure product integrity.

Basic Information

Product Name	Zinc Propionate
CAS No.	557-28-8
Molecular Formula	C6H10O4Zn
Molecular Weight	211.53 g/mol
Synonyms	Zinc Dipropionate; Propanoic Acid, Zinc Salt; Zinc Propanoate; EINECS 209-161-1; Zinc(II) Propionate; Propionic Acid Zinc Salt; Zn(C2H5COO)2
EINECS	209-161-1

Quality Control

Our Zinc Propionate is manufactured under a strict quality management system. Each batch is tested to ensure it meets specifications for identity, purity, and heavy metal content. We can supply material compliant with FCC (Food Chemicals Codex) and feed-grade standards. A comprehensive Certificate of Analysis (COA) is provided with every shipment to guarantee traceability and consistent quality.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent caking and degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (as Zn(C2H5COO)2)	≥ 98.0 %
Zinc (Zn) Content	30.0 - 32.0 %
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Lead (Pb)	≤ 2 ppm
Arsenic (As)	≤ 3 ppm
Water Insoluble Matter	≤ 0.1 %

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