TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

AMPHOTERIC ION [1 record]

Record 1 2012-01-19

English

Subject field(s)
  • Chemical Elements and Compounds
DEF

zwitterionic compounds; zwitterions: Neutral compounds having formal unit electrical charges of opposite sign.

OBS

[Examples:] H3N+CH2C(=O)O-, ammonioacetate (glycine), (CH3)3N+[—O- trimethylamine oxide.

OBS

Some chemists restrict the term to compounds with the charges on non-adjacent atoms. Sometimes referred to as inner salts, dipolar ions (a misnomer).

French

Domaine(s)
  • Éléments et composés chimiques
DEF

Composé neutre possédant des charges électriques formelles d'une unité et de signes opposés.

OBS

Par exemple : H3N+CH2C(=O)O-, ammonioacétate (glycyne); (CH3)3N+[—O-, oxyde de triméthylamine.

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
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