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Propionic acid is a colorless liquid organic compound with a pungent odor. It is a carboxylic acid that is produced through the fermentation of carbohydrates or can be synthesized from petrochemical sources. Propionic acid is commonly used as a preservative in food products, as well as in the production of various chemicals, herbicides, and pharmaceuticals.
| Chemical formula | C3H6O2 |
| Molecular weight | 74.08 g/mol |
| Purity | Typically 99% or higher |
| Boiling point | 140 °C |
| Melting point | -20 °C |
| Density | 0.993 g/cm³ |
When purchasing propionic acid, buyers should consider the required purity level and any specific grades needed for their applications. It is essential to specify the desired quantities and any relevant certifications or compliance standards, especially for food-grade applications. Additionally, understanding the storage and handling requirements is crucial for safe usage.
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It is used as a preservative in food, in agriculture as a herbicide, and in the production of various chemicals.
Yes, propionic acid is generally recognized as safe when used in accordance with food safety regulations.
It should be stored in a cool, well-ventilated area away from incompatible substances.
Yes, it is commonly used as a feed preservative.
It is biodegradable, but care should be taken to prevent large spills that could affect water sources.
When stored properly, it can have a shelf life of several years.