COEI-1-RESECA Cation exchange resins

1. Objective, origin and scope of application

Ion exchange is the reversible exchange of ions between a liquid and a solid, during the course of which the solid does not undergo any substantial changes.  When this technique is applied to wine, the solid is an insoluble, permeable synthetic resin capable of exchanging ions with the wine with which it is in conta

COEI-1-PVPP Polyvinylpolypyrrolidone

Povidone

(PVPP)

(

COEI-1-POTTAR Potassium-L(+)-Tartrate

Potassium-L-2,3-dihydroxybutanedioate

Dipotassium tartrate

Neutral potassium tartrate

COOK-CHOH-COOK,

COEI-1-POTSOR Potassium sorbate

Potassium-2,4-hexadienoate

Kalii sorbas

CH3-CH=CH-CH=CH-COOK

COEI-1-POTRAC Potassium D,L-Tartrate

Potassium D,L-2,3-dihydroxybutanedioate

Potassium racemate

COOK-CHOH-CHOH-COOK = 226.3

1. Objective, origin and scope of application

COEI-1-POTFER Potassium hexacyanoferrate (II)

Potassium ferrocyanide

Cianuretum ferroso - Kalium

COEI-1-POTCAS Potassium caseinate

1. Objective, origin and scope of application

Potassium caseinate is obtained from fresh or pasteurized skimmed milk by acid coagulation of the casein (see monograph), neutralization using potassium hydroxide and drying with a spray dryer. It is used for the fining of wines.

COEI-1-POTBIT Potassium hydrogen tartrate

Potassium L-2,3-dihydroxy hydrogen butanedioate

Monopotassic tartrate

Potassium bitartrate

COOH-CHOH-CHOH-COOK = 188.17