TERMIUM Plus®

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ANION-EXCHANGE RESIN [2 records]

Record 1 2005-02-18

English

Subject field(s)
  • Chemistry
  • Food Additives
CONT

If grown in iodine-rich soil, foods including asparagus, green peppers, lettuce, lima beans, mushrooms, pineapple, raisins, spinach, summer squash, Swiss chard, turnip greens, and whole wheat bread may provide good sources of dietary iodine.

CONT

An iodine removal cartridge containing an anion-exchange resin was installed to remove the iodine from the drinking water prior to consumption. To obtain the levels for a maximum consumption of 3 L of water/day, and assuming the food iodine at 0. 25 mg/day, the total water iodine concentration must be below 0. 25 mg/L of water.

French

Domaine(s)
  • Chimie
  • Additifs alimentaires
CONT

Dans de nombreux pays où le goitre est fréquent, les autorités ont entrepris l'iodation du sel, stratégie qui a permis de réduire les troubles liés au déficit en iode. Cet iode est ajouté au sel sous forme d'iodure de potassium, mais l'iodate de potassium s'est avéré plus stable en climat chaud et humide. Le sel iodé constitue alors la principale source d'iode alimentaire.

Spanish

Save record 1

Record 2 2002-10-15

English

Subject field(s)
  • Geochemistry
  • Water Treatment (Water Supply)
  • Analytical Chemistry
DEF

An anion-exchange agent that can exchange its anion with the anion or anions of a solution passed through it or that can absorb anions in the form of acids ...

OBS

The term anion-exchange resin is mostly used in the case of solid organic polymers.

OBS

There are two main categories of anion exchanger - the strong base exchangers and the weak base exchangers. A typical strong anion exchanger is prepared from the polymerization of styrene and divinylbenzene, followed by chloromethylation and treatment with an appropriate secondary or tertiary amine ... The weak anion exchanges contain a mixture of primary secondary and tertiary amino groups. They are produced by condensing aliphatic amines with either epichlorohydrin or ethylene dichloride ...

French

Domaine(s)
  • Géochimie
  • Traitement des eaux
  • Chimie analytique
DEF

Échangeur dont la partie fixe se conduit comme un cation, c'est-à-dire est susceptible d'échanger un anion.

CONT

[...] échangeur d'ions, substance solide, naturelle ou synthétique, ayant les caractères d'un acide (échangeur de cations) ou d'une base (échangeur d'anions), et fixant, de ce fait, les cations ou les anions.

Spanish

Campo(s) temático(s)
  • Geoquímica
  • Tratamiento del agua
  • Química analítica
Save record 2

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