Sodium Acetate - CH3COONa

What is Sodium Acetate (CH3COONa)?

CH3COONa is a chemical compound with chemical name Sodium Acetate.

It is a sodium salt of acetic acid. It is also called Acetic acid, sodium salt or Sodium acetate anhydrous. Sodium acetate along with an alkyl halide like bromoethane can be used to form an ester.

It is either in its white granular powder form appears as monoclinic crystals. It is hygroscopic in nature and easily soluble in water. It is usually odourless but when heated to decomposition its smells like vinegar or acetic acid. Medically sodium acetate is given intravenously as an electrolyte replenisher. It corrects the sodium levels in hyponatremic patients.

Properties of Sodium Acetate – CH3COONa

CH3COONa Sodium Acetate
Molecular Weight/ Molar Mass 82.03 g/mol
Density 1.528 g/cm3
Boiling Point 881.4 °C
Melting Point 324 °C

Sodium Acetate Structure (CH3COONa Structure)

Sodium Acetate Structure

Sodium Acetate Structure

Sodium Acetate (CH3COONa) Uses

  • It is used for dialysis as a source of sodium ions in solutions.
  • It is used in the textile industry while using an aniline dye.
  • It is used as a pickling agent in the chrome tanning.
  • It acts as a concrete sealant.
  • It can be used in food as a seasoning.
  • It can be used as a buffer along with acetic acid to keep a relatively constant pH.
  • It is used in heating pads, hot ice, and hand warmers.
  • It is used to get rid of the buildup of static electricity.

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1. What is sodium acetate used for?
Ans: In the textile industry, sodium acetate is used to neutralize waste sources of sulfuric acid and also as a photoresist using aniline dyes. It is also a pickling agent for chromium tanning and helps in the manufacture of synthetic rubber to avoid chloroprene vulcanization.

2. Is sodium acetate a strong base?
Ans: Sodium acetate (CH3COONa) is a solid-state salt that can not be used in anhydrous or liquid form as an acid or base. Now, with NaOH being a strong base and CH3COOH being a weak acid, the resulting solution is fundamental in nature. Sodium acetate is therefore essential in an aqueous medium.

3. What is sodium acetate buffer?
Ans: Sodium acetate buffer solution in which an acetic acid maintains the pH — sodium acetate balance.

4. Why does sodium acetate release heat?
Ans: Once heated above 58oC, solid sodium acetate trihydrate loses its hydration capacity and starts to dissolve in that steam. … Sodium acetate trihydrate solution heat is 19.7 kJ / mole (an endothermal process). Exothermic is the crystallization.

5. What is the common name for sodium acetate?
Ans: Sodium acetate is acetic acid’s sodium salt. It has the C2H3O2Na chemical formula and is also known as ethanoate sodium.

Discover more about the physical and chemical properties, uses and structure of Sodium acetate (CH3COONa) from the experts at BYJU’S.

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