CAS 79-09-4 Propionic acid, also known as propanoic acid, is a versatile carboxylic acid with a wide range of applications across various industries. This colorless liquid has a pungent odor and is soluble in water, making it an ideal candidate for use in food preservation, where it acts as a natural preservative to inhibit mold and bacteria growth.
| 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 |
CAS 79-09-4 Propionic Acid Production
Chemical Synthesis
Traditional preparation approaches for CAS 79-09-4 Propionic Acid rely on fossil fuel-derived raw materials as core feedstocks. In recent years, however, the industry has shifted its focus toward eco-friendlier bio-based synthesis routes, aiming to cut down on carbon emissions and reliance on non-renewable resources.
CAS 79-09-4 Propionic Acid Uses
Primary Applications
- Preservative and mold inhibitor in food (E280)
- Raw material in production of cellulose derivatives, herbicides, and perfumes
- Production of propionates and esters used in flavorings and coatings
Secondary Applications
- Intermediate for pharmaceuticals and veterinary drugs
- Used in plastics, textiles, and rubber processing
- Feed additive in livestock industry
End Industries Served: Food & Beverage, Chemicals, Pharmaceuticals, Feed, Polymers, Textiles
CAS 79-09-4 Propionic Acid Safety
Health Hazards
CAS 79-09-4 Propionic Acid possesses strong corrosive properties. Direct contact with skin or eyes can lead to severe chemical burns, and prolonged or high-intensity eye contact may even result in permanent blindness. Inhalation of high-concentration vapors of this substance can also cause irritation of the respiratory tract, triggering symptoms such as coughing and chest tightness.
Protective measures
When handling CAS 79-09-4 Propionic Acid, wear chemical-resistant gloves and safety goggles. Ensure adequate ventilation, e.g. with local exhaust systems or general ventilation equipment.
Storage:
- Temperature: Store in a cool, dry place, away from heat sources and direct sunlight.
- Containers: Keep in tightly sealed containers made of compatible materials (e.g., glass, certain plastics).
- Ventilation: Ensure good ventilation in storage areas to avoid the buildup of vapors.
- Keep Away From: Incompatible substances like strong oxidizers, bases, and reducing agents.
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