Description
Kjeldahl catalyst tablets are solid digestion aids formulated for the Kjeldahl nitrogen determination workflow. Each tablet contains potassium sulfate K2SO4 (3,6 g) and copper(II) sulfate pentahydrate CuSO4·5H2O (0,4 g), providing a defined salt matrix and copper catalyst in a single dose. The nitrogen content of one tablet is below 20 ppm, supporting low-blank sample preparation. Offered as a pack of 250 pieces from manufacturer Labbox under the LABKEM product line, the tablets help standardise reagent addition during acid digestion of organic and agricultural samples. Pack net weight is 1,095 kg. The copper sulfate component is linked to CAS number 7758-98-7. Classification data include Acute Tox. 4 (Oral) H302, Eye Dam. 1 H318, Aquatic Acute 1 H400 and Aquatic Chronic 1 H410, with GHS07, GHS05 and GHS09 labelling and UN number 3077. These catalyst tablets suit routine Kjeldahl digestion benches where reproducible catalyst dosing and controlled nitrogen blank contribution are required in analytical chemistry laboratories.
This article is part of Reagents for analysis (Ph. Eur., ASTM, DIN), in Analytical standards & reference materials.
Key features
- CAS number: 7758-98-7
- Pack size: 250 pcs
- Composition per tablet: K2SO4 3,6 g; CuSO4·5H2O 0,4 g
- Nitrogen content: < 20 ppm per tablet
- EAN: 8434868095755
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Hazard Statements (H-Phrases)
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Questions about Kjeldahl catalyst tablets, 250 pcs
What is this article?
Kjeldahl catalyst tablets, 250 pcs is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Reagents for analysis (Ph. Eur., ASTM, DIN), inside Analytical standards & reference materials, in Lab chemicals.
A reagent for analysis is a chemical whose impurities are limited so they do not become a signal in a titration, a digestion or a photometric method. Pharmacopoeia, ASTM and DIN names point at different limit lists. The grade, not only the identity, is the purchase.
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Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Reference substances & reagents (other), Volumetric standard solutions (titration), Spectroscopy & physical property standards and Indicators & indicator solutions.
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