Description
Dowex® 50 W X 4 is a cation-exchange resin in the H⁺ form with a 200–400 mesh particle size range for laboratory chromatography and ion-exchange applications. It is identified under CAS number 11113-61-4 The fine mesh grade supports column packing and batch contact work where controlled particle size and the protonated resin form are required. This ion-exchange material from manufacturer Carl ROTH is positioned for environmental analysis and chromatography workflows, including ion chromatography related sample treatment. Laboratories use Dowex®-type strong acid cation exchangers for desalting, ion removal and exchange steps under aqueous conditions. The combination of 200–400 mesh sizing, H⁺ form and gives a practical starting quantity for research and analytical groups that specify this resin type. Apply it where a strongly acidic cation exchanger in hydrogen form is needed for chromatographic or sample-cleanup procedures.
This article is part of Reference substances & reagents (other), in Analytical standards & reference materials.
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Questions about Dowex® 50 W X 4, 200-400 mesh, H+-form, 50 g, plastic
What is this article?
Dowex® 50 W X 4, 200-400 mesh, H+-form, 50 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Reference substances & reagents (other), inside Analytical standards & reference materials, in Lab chemicals.
A reference substance has a stated identity and a stated content, used to check a method or to standardise a titration. It is a more tightly specified article than a reagent grade bottle of the same name. The lot's certificate is part of the product.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
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The category is Analytical standards & reference materials. The sub-category is Reference substances & reagents (other). The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
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