Everything about classification of emulsifying agent
The dye test observes emulsion droplets beneath a microscope after incorporating an oil-soluble dye. If the continuous stage is coloured and droplets are clear, It is just a W/O emulsion; if droplets are colored and the continual period is clear, it's an O/W emulsion. The conductivity check utilizes electrodes - if a bulb glows, it truly is an O/W