What is the structural formula of acetic acid CH3COOH?
Its chemical formula is C2H4O2 or can be written as CH3COOH or CH3CO2H. It is an organic compound that is classified as a carboxylic acid because a carboxyl (-COOH) group is present in its chemical structure. Acetic acid is also known as the second simplest carboxylic acid.
acetic acid ch3cooh structure
What are the properties of acetic acid CH3COOH?
Acetic acid, solution, more than 80% acid is a clear colorless aqueous solution with a pungent odor. COLOURLESS LIQUID WITH PUNGENT ODOUR. Colorless liquid or crystals with a sour, vinegar-like odor. Colorless liquid or crystals with a sour, vinegar-like odor.
Exhibiting the following primary properties:
Physical Properties
- Appearance: Colorless transparent liquid with a pungent, irritating odor.
- Solubility: Easily soluble in water, ethanol, diethyl ether, etc.; insoluble in carbon disulfide.
- Freezing Point: 16.6 °C (anhydrous acetic acid forms colorless crystals upon solidification).
Chemical properties
- Acetic acid is hygroscopic, meaning that it tends to absorb moisture. It mixes with ethyl alcohol, glycerol, ether, carbon tetrachloride and water and reacts with oxidants and bases. Concentrated acetic acid is corrosive and attacks many metals forming flammable or explosive gases.
- Other Properties
- Corrosiveness: Vapors irritate eyes and nose; aqueous solutions are weakly acidic and corrosive.
- Industrial Applications: Primary component of vinegar (3%-5% concentration), used for food seasoning, organic synthesis, etc.
acetic acid properties
| Property | Description / Value |
|---|---|
| Chemical Name | Acetic Acid |
| Chemical Formula | CH₃COOH |
| CAS Number | 64-19-7 |
| Appearance | Colorless liquid with strong vinegar-like odor |
| Density | 1.049 g/cm³ (liquid); 1.27 g/cm³ (solid) |
| Melting Point | 16–17 °C (61–62 °F) |
| Boiling Point | 118–119 °C (244–246 °F) |
| Solubility | Fully miscible with water, alcohol, and most organic solvents |
| pKa | 4.76 (weak acid) |
| Flash Point | 39 °C (closed cup) |
| Vapor Pressure | ~15.7 mmHg at 25 °C |
| Odor | Strong, pungent, vinegar-like |
| Molar Mass | 60.05 g/mol |
What are the uses of acetic acid CH3COOH?
In the industrial sector, acetic acid (CAS 64-19-7) serves as a vital chemical feedstock:
- Synthesis of acetate fibers (rayon, film substrates)
- Production of vinyl acetate (adhesive raw material)
- Manufacturing of pharmaceutical intermediates
Its derivatives find extensive applications in textiles, pharmaceuticals, coatings, and other industries.
acetic acid CH3COOH use
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Bulk Industrial buyers often purchase Acetic Acid together with other solvents and intermediates.
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