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Propionic Acid Formula, Structure, Molecular Weight and Uses

Propionic acid formula is CH3CH2CO2. Propionic acid formula is short-chain saturated fatty acid, the main characteristic of this group is the presence of the ethane molecule attached to the carboxyl group.
authorImageSawat Sayyed10 Oct, 2023
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Propionic Acid Formula

The propionic acid formula is CH3CH2CO2. It is an oily liquid with a rotten smell; propionates or propanoates are salts and esters of propionic acid and anions. Propionic acid formula is a short-chain saturated fatty acid with a carboxy group attached to ethane; propionic acid is a short-chain saturated fatty acid.

Propionic Acid Formula Structure

Propionic acid, or propanoic acid, is a simple carboxylic acid with the chemical formula CH3CH2CO2. The propionic acid formula structure consists of three carbon atoms (C), six hydrogen atoms (H), and two oxygen atoms (O), arranged in a linear chain. The molecular formula can be written as CH3CH2COOH. This organic compound is part of the carboxylic acid family, characterized by a carboxyl group (COOH) at one end of the molecule. Propionic Acid Formula

Also Read: Glycerol Formula

Propionic Acid Formula and Molecular Weight

The molecular weight of the propionic acid formula can be calculated by adding the atomic weights of its constituent elements. Carbon (C) has an atomic weight of approximately 12.01 g/mol, hydrogen (H) has an atomic weight of approximately 1.01 g/mol, and oxygen (O) has an atomic weight of approximately 16.00 g/mol. Using the formula C3H6O2, we can calculate the molecular weight as follows: Molecular weight of propionic acid (C3H6O2) = (3 × 12.01 g/mol) + (6 × 1.01 g/mol) + (2 × 16.00 g/mol) = 74.08 g/mol The molecular weight of propionic acid is approximately 74.08 grams per mole. Propionic acid Formula and Molecular Weight

Propionic Acid Formula Compound

Propionic acid is a naturally occurring compound found in a variety of contexts. It is a carboxylic acid, which means it contains a functional carboxyl group (-COOH) responsible for its acidic properties. Propionic acid is commonly found in dairy products, especially cheeses, contributing to the tangy flavor. Additionally, it is produced in the human digestive system as a metabolic product of the fermentation of certain dietary carbohydrates.

Also Read: Fumaric Acid

Properties of Propionic Acid formula

Propionic acid, with the chemical formula C3H6O2, possesses several important properties essential for its various industrial, chemical, and biological applications. Here are some of the critical properties of propionic acid:
Properties of Propionic Acid formula
Propionic acid Formula C3H6O2 or CH3CH2COOH
Molecular weight 74.079 g/mol
Density of Propionic acid 0.98797 g/cm3
Chemical names Propanoic Acid Ethanecarboxylic acid
Boiling point 141.15 °C
Melting point −20.5 °C
Crystal structure Monoclinic

Also Read: Aspirin Formula

Propionic Acid Formula and Uses

Food Preservation: Propionic acid and its salts (propionates) are used as preservatives in the food industry to prevent mold and bacteria growth in baked goods and other food products. They help extend the shelf life of bread, pastries, and other baked items. Animal Feed: Propionic acid is added to animal feed to inhibit the growth of mold and bacteria, which can spoil the feed and harm livestock. This ensures that the feed remains safe and nutritious for animals. Pharmaceuticals: Propionic acid and its derivatives produce various pharmaceuticals, including anti-inflammatory drugs and certain antibiotics. Plastics and Polymers: It serves as a precursor in producing several plastics and polymers, including cellulose acetate propionate (CAP) and polypropionate. Chemical Intermediates: Propionic acid is employed as a chemical intermediate in synthesizing other compounds, such as herbicides, perfumes, and flavors.

Propionic Acid Formula Chemistry

The chemistry of propionic acid involves its reactions and properties as an organic acid. It is a weak acid that does not completely dissociate in water. In aqueous solutions, it partially ionizes into the propionate ion (C2H5COO-) and a hydrogen ion (H+). The equation represents this ionization: CH3CH2COOH ⇌ CH3CH2COO- + H+ Propionic acid reacts with bases to form propionate salts. It can also undergo esterification reactions to produce propionate esters utilized in various applications. Propionic acid is a vital organic compound with the chemical formula C3H6O2, known for its role in food preservation, animal feed, pharmaceuticals, and various chemical processes. Its simple structure and versatile chemistry make it a valuable ingredient in various industries. Understanding the propionic acid formula and its properties is essential for harnessing its potential in various applications.
Related Links
Gluconic acid Structure Formula Butane-1-ol Formula
Fumaric Acid Formula Carbon Chemical Formula

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How do you write propanoic acid? 

Propanoic acid is typically written as CH3CH2COOH in its chemical formula. It is also known by its systematic IUPAC name, propanoic acid.

What is the common name of propionic acid?

The common name of propionic acid is simply "propionic acid." This name commonly refers to it in both scientific and industrial contexts.

Why is propionic acid used? 

Propionic acid is used for various purposes, primarily as a preservative in the food industry to inhibit mold and bacterial growth, extending the shelf life of products like bread and cheese. It is also employed in animal feed to prevent spoilage and in the production of pharmaceuticals, plastics, and other chemical compounds.

Is propionic acid a chemical?

Yes, propionic acid is a chemical compound. It is an organic carboxylic acid with the chemical formula C3H6O2, used in numerous industrial and biological applications due to its versatile properties.
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