13184-U
Dowex 21K XLT Resin 100 grams
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About This Item
UNSPSC Code:
41115710
NACRES:
SB.52
Productos recomendados
form
beads
crosslinking
<10 % cross-linked
technique(s)
LPLC: suitable
matrix
styrene-divinylbenzene
matrix active group
quaternary amine
particle size
525-625 μm
capacity
1.4 meq/mL
separation technique
anion exchange
General description
Dowex 21K XLT is a strong basic anionic exchange resin, selectively adsorbs gold-cyanide complex. Dowex is used as a solid acid catalyst in organic synthesis. Dowex polymer is highly efficient solid acid catalyst for the regioselective ring opening of epoxides to β-hydroxy thiocyanates.
Application
Dowex 21K XLT was used:
- to detect the existence of gold-cyanide complex using Scanning electron microscopy and Energy dispersive X-ray spectroscopy
- to remove excess amount of arsenate during the analysis of arsines using atomic fluorescence spectrometer.
Legal Information
Storage Class
13 - Non Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Dowex as Reusable Acidic Polymeric Catalyst in the Efficient and Regioselective Conversion of Epoxides into β-Hydroxy Thiocyanates under Solvent Free Conditions.
Kiasat, Ali Reza, and Mehdi Fallah-Mehrjardi.
J. Chin. Chem. Soc., 55, 1119-1124 (2008)
Selective adsorption of the gold-cyanide complex from waste rinse water using Dowex 21K XLT resin
Ok, Yong Sik, and Choong Jeon.
Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands), 20, 1308-1312 (2014)
Efrén Ordóñez et al.
The Journal of biological chemistry, 284(22), 15107-15116 (2009-03-17)
We identified the first enzymes that use mycothiol and mycoredoxin in a thiol/disulfide redox cascade. The enzymes are two arsenate reductases from Corynebacterium glutamicum (Cg_ArsC1 and Cg_ArsC2), which play a key role in the defense against arsenate. In vivo knockouts
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