anion-exchange resin

anion-exchange resin

n.

An insoluble organic polymer containing cation groups that attract and hold anions present in a surrounding solution in exchange for anions previously held.

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anion-exchange resin,

any one of the simple organic polymers with high molecular weights that exchange the resin anions with other anions in solution. Compare cation-exchange resin.

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anion

an ion carrying a negative charge. In an electrolytic cell anions are attracted to the positive electrode (anode).

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anion-exchange resin

see ion-exchange resin.

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resin

1. a solid or semisolid, amorphous organic substance of vegetable origin or produced synthetically. True resins are insoluble in water, but are readily dissolved in alcohol, ether and volatile oils.

2. rosin.

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acrylic r's

products of the polymerization of acrylic or methacrylic acid or their derivatives and used in the fabrication of surgical prostheses and equipment.

anion-exchange resin

see ion-exchange resin.

cation-exchange resin

see ion-exchange resin.

cholestyramine resin

a synthetic, strongly basic anion-exchange resin in the chloride form which chelates bile salts in the intestine, thus preventing their reabsorption.

composite resin

usually a mixture of organic matrix and inorganic filler, used in restorative dentistry.

ipomoea resin, jalap resin, scammony resin

severe cathartics and irritants; little used because of their disastrous effects.