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paratoluidina en solución al 10 % (m/v).
paratoluidine solution, 10 % (m/v).
Last Update: 2018-03-04
Usage Frequency: 4
Quality:
los aldehídos derivados del furano, de los cuales el principal es el hidroximetilfurfural, reaccionan con el ácido barbitúrico y la paratoluidina, obteniéndose un compuesto rojo que se determina por colorimetría a 550 nm.
aldehydes derived from furan, the main one being hydroxymethylfurfural, react with barbituric acid and paratoluidine to give a red compound which is determined by colorimetry at 550 nm.
introducir 10 g de paratoluidina, c6h4(ch3) nh2, en un matraz aforado de 100 ml; añadir 50 ml de isopropanol, ch3ch(oh)ch3, y 10 ml de ácido acético glacial, ch3cooh (ρ20 = 1,05 g/ml); completar hasta 100 ml con isopropanol.
place 10 g of paratoluidine, c6h4(ch3) nh2, in a 100 ml volumetric flask; add 50 ml of isopropanol, ch3ch(oh)ch3, and 10 ml of glacial acetic acid, ch3cooh (ρ20 = 1,05 g/ml). make up to 100 ml with isopropanol.