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POLYBASIC [5 records]

Record 1 2004-03-09

English

Subject field(s)
  • Chemistry
CONT

Acetic acid has only one ionizable hydrogen and is called monobasic. Some other acids have two or even three ionizable hydrogens and are called polybasic.

OBS

polybasic. A chemical compound in solution that yields two or more H+ ions per molecule, such as sulfuric acid, H2SO4.

French

Domaine(s)
  • Chimie
DEF

Corps qui libère plusieurs cations H+ par molécules.

Spanish

Campo(s) temático(s)
  • Química
DEF

Todo ácido que contiene dos o más equivalentes-gramo de hidrógeno por cada mol.

Save record 1

Record 2 2003-06-05

English

Subject field(s)
  • Chemistry
  • Biotechnology

French

Domaine(s)
  • Chimie
  • Biotechnologie
OBS

(acide inorganique)

Spanish

Campo(s) temático(s)
  • Química
  • Biotecnología
Save record 2

Record 3 2000-04-27

English

Subject field(s)
  • Genetics

French

Domaine(s)
  • Génétique
DEF

Type d'alloploïdie résultant de l'hybridation entre des espèces dont les nombres de base sont différents.

OBS

Par exemple, le colza provient du croisement entre le chou à x=9 et la navette à x=10.

Spanish

Save record 3

Record 4 1998-03-20

English

Subject field(s)
  • Paints and Varnishes (Industries)
OBS

Modified alkyds are those in which the polybasic acid is substituted in part by a monobasic acid, of which the vegetable oil fatty acids are typical.

Key term(s)
  • oil-modified alkyd resin

French

Domaine(s)
  • Peintures et vernis (Industries)
DEF

Produit résultant de la modification par les acides gras d'une résine alkyde, modification qui consiste à remplacer, au cours de la fabrication, une partie des polyacides par une quantité équifonctionnelle d'acides gras. [Définition normalisée par l'AFNOR et reproduite avec son autorisation.]

OBS

résine alkyde modifiée aux acides gras : terme normalisé par l'AFNOR.

Spanish

Save record 4

Record 5 1976-06-19

English

Subject field(s)
  • Chemical Elements and Compounds

French

Domaine(s)
  • Éléments et composés chimiques

Spanish

Save record 5

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