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AmberChrom™ 1X4 chloride form

20-50 mesh, Anion Exchange Resin

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Synonym(s):
Dowex 1X4-50 ion-exchange resin
Linear Formula:
(C10H12 · C10H10 · C8H8 · C3H9N)X
CAS Number:
69011-19-4
MDL number:
MFCD00146764
NACRES:
SB.52

Quality Level

100

description

cross-linkage 4%

form

beads

parameter

66 °C OH- form max. temp.
99 °C Cl- form max. temp.

moisture

>50%

technique(s)

LPLC: suitable

matrix

styrene-divinylbenzene (gel)

matrix active group

quaternary ammonium

particle size

20-50 mesh

operating pH

0-14

capacity

1.0 meq/mL capacity

separation technique

anion exchange

InChI

1S/C10H12.C10H10.C8H8.C3H9N/c2*1-3-9-7-5-6-8-10(9)4-2;1-2-8-6-4-3-5-7-8;1-4(2)3/h3,5-8H,1,4H2,2H3;3-8H,1-2H2;2-7H,1H2;1-3H3

InChI key

HADXLRSCRPYPJJ-UHFFFAOYSA-N

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Application

Dowex 1X4, anion-exchange resin, was used as adsorbent material in characterization of iodinated contrast media using 11B NMR and capillary electrophoresis. The unreacted fluoride in a solution was removed by passing the solution through a column packed with Dowex 1X4-50 chloride form.
Strongly basic (type I) anion exchange resin for fine pharmaceuticals; meets requirements of FDA Food Additive Regulation 21 CFR 173.25.

Features and Benefits

strongly basic anion.

Other Notes

This ion-exchange resin has not been specially processed nor cleaned. We suggest that it be treated to a suitable preliminary elution and wash.

Legal Information

Amberchrom is a trademark of DuPont de Nemours, Inc.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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  5. How can a Dowex type 1 resin in the chloride form be converted to the carbonate form?

    As one might expect, the procedure requires the use of sodium carbonate (Na2CO3).Citation: Journal of Experimental Medicine, 120, 1007-1018 (1965).From page 1011 of that paper:"A 2 mL column of washed Dowex-1X8 200 to 400 mesh, in the chloride form, was converted to the carbonate form by washing with 1 M Na2CO3 until no chloride could be detected in the eluate. It was then washed with distilled water until the pH of the eluate reached neutrality". The simplest test for chloride is to use a dilute silver nitrate solution. If mixing a few drops of the eluate with a few drops of a silver nitrate solution results in a silver chloride precipitate forming, that would an indication that the eluate contains chloride. You could also use a chloride-specific electrode, if you have access to one.

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A V Kachur et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 51(6), 643-650 (1999-12-03)
We report on the preparation of a hypoxia marker 2-(2-nitroimidazol-1[H]-yl)-N-(3-fluoropropyl)acetamide (EF1) and its 18F analog, 2-(2-nitroimidazol-1[H]-yl)-N- (3-[18F]fluoropropyl)acetamide ([18F]-EF1). Two methods for the preparation of 3-fluoropropylamine, the EF1 side chain, are described. [18F]-EF1 was prepared with a radiochemical yield of 2%
Isabella Rustighi et al.
Journal of hazardous materials, 205-206, 10-16 (2012-01-17)
Iodinated contrast media (ICM) are persistent and ubiquitous water pollutants. Because of their high water solubility and biochemical stability, their phase-separation and recovery from the aquatic environment is very difficult. Here, borate was chosen as a complexing agent of the

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