vat red 1, 2, 10, 13, 15, 23, 29, 35; methyl violet lake, eosin lake, rhodamine lake B, alizarine lake and brilliant carmine lake 3B. Though it is acceptable to use the above pigment by itself, it is preferable in terms of the image quality of full-color images to combine the ...
At pH 10, the OH group reacts with 4-amino antipyrine and K4Fe(CN)6 to produce a purple-red color. Quantitative analysis of phenol degradation was conducted by measuring the phenol content in the supernatant of each sample and calculating degradation using the following equation % Degradation ...