TERMIUM Plus®

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

humic acids [1 record]

Record 1 2015-11-12

English

Subject field(s)
  • Chemistry
  • Geochemistry
  • Soil Science
DEF

That part of humic substances which is soluble in dilute alkaline solution but is precipitated by acidification.

OBS

humic acids: term rarely used in the singular (humic acid).

OBS

humic acids: term and definition standardized by ISO.

Key term(s)
  • humic acid

French

Domaine(s)
  • Chimie
  • Géochimie
  • Science du sol
DEF

Mélange de matières organiques, de couleur foncée, fortement polymérisées, précipitées du sol par acidification d'un extrait alcalin dilué.

CONT

Les acides humiques sont insolubles dans l'eau, l'alcool et l'acétone. Ils peptisent dans l'eau en l'absence d'acide libre.

OBS

acides humiques : terme rarement utilisé au singulier (acide humique).

OBS

acides humiques : terme normalisé par l'ISO.

Key term(s)
  • acide humique

Spanish

Campo(s) temático(s)
  • Química
  • Geoquímica
  • Ciencia del suelo
DEF

Parte de las sustancias húmicas que es soluble en solución alcalina diluida pero que se precipita mediante acidificación.

Key term(s)
  • ácido húmico
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