Abstract
This article provides an in-depth overview of propionic acid (CAS 79-09-4), a crucial compound with a wide range of applications in various industries. It delves into the must-know facts about propionic acid, highlighting its properties, uses, safety considerations, and regulatory aspects. By understanding these key details, businesses can make informed decisions regarding the use of propionic acid in their operations.
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Introduction to Propionic Acid (CAS 79-09-4)
Propionic acid, also known as 2-methylpropanoic acid, is a carboxylic acid with the chemical formula CH3CH2COOH. It is a colorless liquid with a pungent, acrid odor. With the CAS number 79-09-4, propionic acid is widely recognized in the chemical industry. This article aims to provide a comprehensive guide to the essential facts about propionic acid that businesses should be aware of.
Chemical Properties of Propionic Acid
Propionic acid is a volatile, flammable liquid at room temperature. It has a melting point of -42.5°C and a boiling point of 140°C. The acid is soluble in water, alcohol, and ether, making it versatile for various applications. Its molecular weight is 88.09 g/mol, and it is classified as a weak acid, with a pKa value of 4.86. These chemical properties are crucial for understanding its behavior and potential uses.
Applications of Propionic Acid in Business
Propionic acid finds extensive use in various industries due to its unique properties. Here are some of the primary applications:
1. **Food Preservation**: Propionic acid is a common preservative used in the food industry to inhibit the growth of bacteria, molds, and yeasts. It is particularly effective in extending the shelf life of dairy products, meat, and baked goods.
2. **Pharmaceuticals**: In the pharmaceutical sector, propionic acid is used as an active ingredient in certain medications. It is also employed as a pH regulator and a preservative in pharmaceutical formulations.
3. **Cosmetics and Personal Care Products**: Propionic acid is used in cosmetics and personal care products for its preservative properties. It helps prevent the growth of bacteria and fungi, ensuring product safety and longevity.
Safety Considerations for Propionic Acid
While propionic acid has numerous applications, it is important to consider its safety profile. Here are some key safety aspects:
1. **Hazardous Effects**: Propionic acid can cause irritation to the eyes, skin, and respiratory system. Ingestion can lead to severe gastrointestinal irritation, and inhalation can cause respiratory irritation.
2. **Handling and Storage**: Proper handling and storage are essential to prevent accidents. Propionic acid should be stored in a cool, dry place, away from incompatible materials and sources of ignition.
3. **Personal Protective Equipment (PPE)**: When handling propionic acid, appropriate PPE, such as gloves, goggles, and lab coats, should be worn to minimize exposure risks.
Regulatory Aspects of Propionic Acid
Regulatory compliance is crucial for businesses using propionic acid. Here are some regulatory considerations:
1. **Food Additives**: Propionic acid is approved as a food additive in many countries, including the United States and the European Union. It is classified as Generally Recognized as Safe (GRAS) for use in food.
2. **Occupational Exposure Limits**: Occupational exposure limits (OELs) are set to protect workers from harmful effects of propionic acid. These limits vary by country and are typically based on the concentration of the acid in the air.
3. **Transportation and Disposal**: Propionic acid is subject to specific regulations for transportation and disposal. Proper labeling and handling are essential to comply with these regulations.
Conclusion
Propionic acid (CAS 79-09-4) is a versatile compound with significant applications across various industries. Understanding its chemical properties, uses, safety considerations, and regulatory aspects is essential for businesses to make informed decisions. By adhering to safety guidelines and regulatory requirements, businesses can harness the benefits of propionic acid while minimizing risks.
Keywords
Propionic acid, CAS 79-09-4, chemical properties, food preservation, pharmaceuticals, safety considerations, regulatory aspects, business applications.
