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Merck

655422

Sigma-Aldrich

QuadraPure® TU

macroporous, 400-600 μm particle size

Sinónimos:

QuadraPure® Thiourea

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About This Item

MDL number:
UNSPSC Code:
12163800
PubChem Substance ID:
NACRES:
NA.22

Quality Level

reaction suitability

reagent type: catalyst
reagent type: chelator

particle size

400-600 μm

General description

QuadraPure® TU is a thiourea-based metal scavenger resin that can be used to prevent metal contamination that occurs during pharmaceutical or fine chemical processing.

Application

Metal Scavenger: Pd, Pt, Ru, Rh, Au, Ag, Cu, Hg, Pb, Cd, Ni, Co, Fe, V, Zn
QuadraPure® TU has been used to remove color from the solution due to leaching of copper species during the copper(I)-mediated 1,2,3-triazole formation via [3+2] cycloaddition of acetylenic compounds with azides. It has also been used as a modifier for carbon pastes to develop QuadraPure® TU residue functionalized resin-modified carbon paste electrode (“TUR-CPE”) for the determination of Pb(II) ions.
Other applications include the removal of metal ions like copper and palladium that leach out during continuous flow coupling reactions.

Legal Information

QuadraPure is a registered trademark of Johnson Matthey Finland Oy

pictograms

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signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Visite la Librería de documentos

Continuous flow ligand-free Heck reactions using monolithic Pd [0] nanoparticles.
Nikbin N, et al.
Organic Process Research & Development, 11(3), 458-462 (2007)
Sebastian Wesselbaum et al.
Angewandte Chemie (International ed. in English), 51(34), 8585-8588 (2012-07-19)
Dual role for CO(2): Pure formic acid can be obtained continuously by hydrogenation of CO(2) in a single processing unit. An immobilized ruthenium organometallic catalyst and a nonvolatile base in an ionic liquid (IL) are combined with supercritical CO(2) as
Continuous flow coupling and decarboxylation reactions promoted by copper tubing.
Zhang Y, et al.
Organic Letters, 13(2), 280-283 (2010)
Michael J. Girgis, et al.
Organic Process Research & Development, 12, 1209-1217 (2008)
Nikzad Nikbin, et al.
Organic Process Research & Development, 11, 458-462 (2007)

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