News

SciELO18d
A New Fluorescence Method for Determination of Ammonium Nitrogen in Aquatic Environment Using Derivatization with Benzyl Chloride
The apparent reaction rate constant is k = ΔF / t = 6.17 min-1. Effect of hydrochloric acid concentration on fluorescence intensity of the reacted solution. The stability of the reacted solution is ...
istockphoto23d
Zinc and Hydrochloric Acid Reaction HD stock video...
Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...
C&EN25d
Dimethyl Sulfate as Methylation Agent and Solvent in Highly Regioselective Synthesis of Methyl Salicylate Using Sodium Bicarbonate as a Base
Department of Pharmacy, Universidade Federal dos Vales do Jequitinhonha e Mucuri-UFVJM, Campus JK, Rodovia MGT 367 - Km 583, n° 5.000, Alto da Jacuba, CEP 39100-000 Diamantina, MG, Brazil ...