© IMCET 2022. All rights reserved.Frothers that are surfactants are used in flotation to reduce bubble size and produce stable froth. The term critical coalescence concentration (CCC) is described the minimum concentration giving the minimum bubble size. The aim of this study is to examine the effect of single and dual-use of different types of frothers on bubble coalescence and bubble size. The bubble size was stated as Sauter mean bubble size (d32) which is expressed as the ratio of bubble volume to the area is measured by ImageJ program. Aliphatic alcohol type frother (MIBC) and polyglycol type frother (Dow Froth 250) were used in this study. Depending on the increase of the frother concentrations, critical coalescence concentration (CCC), froth height, surface tension measurements were performed for single and dual-use of the frothers. According to the results, it was determined that MIBC reached the CCC value at a higher concentration compared to Dow Froth 250. Besides, smaller size froth was produced with the Dow Froth 250. However, better results were obtained in terms of bubble size when using frother blend.