Acetate

Acetate
Names
IUPAC name
Acetate
Systematic IUPAC name
Ethanoate
Identifiers
Properties
CH
3CO−
2
Molar mass 59 g mol-1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Acetate, also known as ethanoate, is the salt or ester of acetic acid (vinegar). It is also an ion of acetic acid. It is formed when acetic acid dissolves in water (which splits into an acetate anion and a hydron). The chemical formula is CH3COO− (also written as CH3CO−2 or C2H3O−2) when it exists as an ion. Acetate salts turn brown when heated, and smell like acetic acid.

Acetate esters

Acetate esters have the chemical formula CH3COOR (where R is an organic group like an alkyl or aryl group). It is made when acetic acid reacts with an alcohol to make an acetic ester and water.

The reaction between acetic acid and ethanol gives ethyl acetate and water:

CH3COOH + CH3OH ⇌ CH3COOC2H5 + H2O

Acetate salts

Acetate salts are made when acetic acid reacts with a base (like sodium hydroxide).

The reaction between acetic acid and sodium hydroxide gives sodium acetate and water:

CH3COOH + NaOH —> CH3COONa + H2O

Examples

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