Dictionary:

acetate

  (ăs'ĭ-tāt')

1. A salt or ester of acetic acid.
2. Cellulose acetate or any of various products, especially fibers, derived from it.

1.thin, clear or translucent, and flexible plastic sheet or strip that will accept printing ink. Acetate is used for the production of overlays, camera-ready proofs, and other types of graphics. The material is also used in the preparation of sequences in animated films. Each strip of the sequence is printed on a separate strip of acetate, called a cel.

2.material from which a phonograph disc is made.

1. a salt of acetic acid. n 2. short for cellulose acetate, the film base for x-rays.

For more information on acetate, visit Britannica.com.

A salt of acetic acid.

• a. base — cellulose acetate sheet used as support or base for x-ray film.
• a. tape slide — a method of collecting ectoparasites such as mites, lice or fleas, and their eggs, for diagnostic purposes by pressing the sticky side of the tape against the skin and haircoat and applying the tape to a glass slide which is then examined microscopically.

An acetate, or ethanoate, is a salt or ester of acetic acid.

Acetate anion

The acetate anion, [C₂H₃O₂]⁻, is a carboxylate and is the conjugate base of acetic acid. The acetate ion is formed by the deprotonation of acetic acid:

CH₃COOH ⇌ CH₃COO⁻ + H⁺

Acetate esters

An acetate ester is an ester of acetic acid, with the general formula C₂H₃O₂R, where R is an organyl group.

Acetate can also refer to cellulose acetate, especially fibres or other derived products such as the acetate disc used in audio record production. Cellulose acetate can be found in many household products.

Notation in organic chemistry

In the field of organic chemistry the abbreviation Ac refers to the acetyl group. Hence, acetate can be written ⁻OAc or AcO⁻ and acetic acid, sodium acetate, and ethyl acetate can be denoted by HOAc, NaOAc, and EtOAc respectively.

Ac is also the symbol for the chemical element actinium, but confusion between actinium and the acetyl group is rare, since actinium has virtually no role in organic chemistry.

Structures

space-filling model of the acetate anion	ball-and-stick model of the acetate anion	structural formula of the acetate anion	resonance hybrid of the acetate anion
canonical forms of the acetate anion	skeletal formula of the acetate anion	general skeletal structure of an acetate ester	skeletal structure of the acetyl group

See also

• Acetylation
• Cellulose acetate

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acetates

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Dansk (Danish)
n. - acetat, eddikesurt salt

Nederlands (Dutch)
kunstzijde, acetaat

Français (French)
n. - acétate

Deutsch (German)
n. - (chem.) Acetat, Kunstseide

Ελληνική (Greek)
n. - (χημ.) οξικό άλας, οξικός εστέρας, ρεγιόν (από οξική κυτταρίνη)

Italiano (Italian)
acetato, seta artificiale

Português (Portuguese)
n. - acetato (m) (Quím.)

Русский (Russian)
ацетат, соль уксусной кислоты

Español (Spanish)
n. - acetato

Svenska (Swedish)
n. - acetat

中文（简体） (Chinese (Simplified))
醋酸盐, 醋酸纤维

中文（繁體） (Chinese (Traditional))
n. - 醋酸鹽, 醋酸纖維

한국어 (Korean)
n. - 초산염

日本語 (Japanese)
n. - 酢酸塩, 酢酸塩で作ったもの, アセテート, 酢酸エステル

العربيه (Arabic)
‏(الاسم) خلات, أسيتات‏

עברית (Hebrew)
n. - ‮מלח חומצת החומץ, אצטאט, בד המיוצר מאצטאט של תאית‬

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