Urea, min. 99,5 %, p.a., 500 g, plastic

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Urea is a laboratory reagent of minimum 99,5 % purity in p.a. grade, identified by CAS number 57-13-6 and the empirical formula CH₄N₂O. It has a molar mass of 60,06 g/mol and a den sity of 1,33 g/cm³, giving well-defined physical constants for weighing and solution preparation. The product is With EG number 200-315-5, this urea matches established identity references used in analytical and research settings. The stated p.a. quality and minimum assay support work where a consistent, high-purity solid is required. Clear specification of molar mass and density assists stoichiometric calculations and the make-up of aqueous or buffered systems. This preparation provides a dependable chemical identity for general laboratory applications that call for p.a. urea at min. 99,5 %. This article is part of Dehydrated culture media (agar & broth bases), in Culture media & microbiology. See also Petri dishes. Key features Assay (ex N2): ≥99,5 % In C2H5OH insoluble matter: ≤0,01 % Melting range: 132-135 °C Sulphated ash: ≤0,01 % Chloride (Cl): ≤0,007 % Sulphate (SO4): ≤0,01 % Ammonium (NH4): ≤0,05 % Heavy metals (as Pb): ≤0,0003 % Arsenic (As): ≤0,00005 % Iron (Fe): ≤0,0001 % CAS number: 57-13-6 Pack sizes: 1 kg, 5 kg, 500 g EG nr.: 200-315-5 Purity: min. 99,5 %, p.a. Empirical formula: CH₄N₂O Molar mass: 60,06 g/mol Technical Information Sheet: Safety Data Sheet: Show more