What Is The Formula Of Pure Acetic Acid (CAS 64-19-7)?
CH 3COOH
Acetic acid (CAS 64-19-7) with chemical formula CH3COOH is a monocarboxylic acid with one "COOH" group. It's an anhydrous, clear, colourless liquid having a pungent smell.
pure acetic acid formula
What are the properties of pure acetic acid (CAS 64-19-7)?
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 pure acetic acid (CAS 64-19-7)?
Pure acetic acid(CAS 64-19-7) is an important organic acid widely used in chemical, food, pharmaceutical, and other industries. Its primary applications include:
Chemical Production
- Acetic acid esters: Used to produce ethyl acetate (polyvinyl acetate film, adhesives), ethyl acetate solvents, and other solvents extensively applied in the paint and coatings industries.
- Cellulose acetate: Manufactures materials like rayon and motion picture film.
- Organic synthesis: Serves as a catalyst or oxidizing agent (e.g., lead tetraacetate) in synthesizing pharmaceuticals, dyes, and fragrances.
Food Industry
- Acidulant: Diluted to 4-5% for synthetic vinegar production, or used as an acidifier in compound seasonings, canned goods, and cheese.
- Flavor enhancer: Added to foods like fermented liquor at 0.1-0.3 g/kg.
Other Industrial Applications
- Pickling and polishing: Acts as a buffer in weakly acidic solutions (e.g., galvanizing, electroless nickel plating).
- Dyeing and printing auxiliaries: Used in leather tanning and fabric dyeing.
pure acetic acid use
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Bulk Industrial buyers often purchase Acetic Acid together with other solvents and intermediates.
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