Acetic Acid

Acetic Acid

CAS Number: 64‑19‑7

Synonyms: Acetic acid; Ethanoic acid; Glacial acetic acid; Vinegar acid

Chemical Formula:C₂H₄O₂ (CH₃COOH)

Product Introduction

Acetic Acid is a colorless, pungent liquid known as the active component of vinegar. It is the second simplest carboxylic acid, widely utilized in chemical manufacturing, food preservation, and household cleaning. It's typically available as "glacial" (undiluted) acetic acid.

Physical & Chemical Properties

Property Value
Appearance Colorless liquid
Odor Pungent, vinegar-like
Density @ 20 °C 1.049 g/cm³
Melting Point ~16.3 °C
Boiling Point ~118 °C
Flash Point ~40 °C
Vapor Pressure @20 °C ~11.5 mmHg
Solubility Miscible with water
Molecular Weight 60.05 g/mol
pKa 4.76

Applications

  • Industrial chemical feedstock:Used to produce cellulose acetate, vinyl acetate, acetic anhydride, and synthetic fibers.
  • Food & household:Acts as food preservative, flavoring agent (vinegar), and as a descaling/acidity regulator.
  • Laboratory reagent:Commonly used in analytical chemistry and as a solvent or acid catalyst.

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