CAS 79-09-4 Propanoic acid, also known as propionic acid, is a fascinating short-chain saturated fatty acid with the chemical formula CH₃CH₂COOH.
What Is Propanoic Acid?
Propanoic acid is a three-carbon carboxylic acid belonging to the family of short-chain fatty acids.
Basic chemical information:
Chemical formula: C₃H₆O₂
Molecular weight: 74.08 g/mol
CAS No.: 79-09-4
| Formula: | C₃H₆O₂ |
| CAS Number: | 79-09-4 |
| EC Number (EINECS): | 200-872-2 |
| HS Code: | 29152900 |
| UN Number: | 2810 |
| IUPAC Name: | Propanoic Acid |
| Also Known As: | Ethylformic Acid; Propionic Acid Glacial |
| Molecular Weight, g/mol: | 74.08 |
Why Propanoic Acid Is Called a Short-Chain Fatty Acid
Short-chain fatty acids are carboxylic acids with fewer than six carbon atoms. Propanoic acid contains three carbon atoms, which gives it:
- High antimicrobial effectiveness
- Excellent solubility in water
- Rapid action against molds and bacteria
These characteristics explain its widespread use as a preservative and mold inhibitor.
Key Applications of Propanoic Acid
Food Industry
Preservative: Liquid Propionic Acid prolongs the shelf life of baked goods, cheese, and meats by stopping mold and bacteria from growing.
Cheese Production: It plays a key role in making Swiss cheese, contributing to its unique flavor and the formation of holes.
Animal Feed
As a preservative, Propanoic Acid prevents feed spoilage caused by mold. It also helps improve the overall quality of animal feed, supporting livestock health.
Agriculture
Fungicide: Controls fungal growth on crops such as cereals and vegetables, protecting yields.
Herbicide: Added to some weed control products to help eliminate unwanted plants.
Chemical Manufacturing
It is used to synthesize propionate esters, which are widely applied in making fragrances, industrial solvents, and plasticizers.
Textiles & Leather
Textile Dyes & Finishes: Assists in the dyeing process and treats fabrics to enhance their quality and durability.
Leather Tanning: Helps regulate pH levels during tanning and improves the final quality of leather products.
Cosmetics
CAS 79-09-4 Propanoic Acid acts as both a preservative and pH adjuster in personal care products like shampoos, lotions, and creams, maintaining product stability.
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