How to identify the type of emulsion
1) Dilution test
When water is added to the o/w emulsion, since water is the dispersion medium, it will still remain stable, but when oil is added, it will become unstable due to the immiscibility of oil and water. Similarly, w/o emulsions can be diluted with oil and are still stable, but will be unstable after adding water.
2) Conductivity test
In this test, the emulsion was held between two electrodes, and a bulb was connected in the circuit, as shown in the picture. O/W emulsion will conduct electricity like water, but W/O will not conduct electricity.
3) Dye test
In this case, water-soluble dyes are added to the emulsion. If it is an o/w emulsion, the dispersion medium appears red and the dispersed phase is colorless, and vice versa.
Emulsion separation
The different methods by which an emulsion can be separated into its constituent liquids include:
1) Heating
2) Centrifugal
3) Freeze etc
Examples of emulsions
The emulsion basically consists of a dispersion of two liquids that are immiscible with each other. One liquid serves as the dispersion medium, and the other liquid serves as the dispersed phase. In short, an emulsion is a colloid in which both the dispersed phase and the dispersion medium are liquid. When shaken together, the mixture of oil and water is the emulsion. The oil forms droplets, which are then dispersed throughout the water.
The term emulsion also applies to a group of mixed systems called solutions, gels or suspensions. For example, a photographic emulsion is gelatin composed of tiny crystals dispersed in it. Some other examples of emulsions include butter, which is a lecithin-containing emulsion with water in fat and egg yolk.
Jimmy yuan
Zhejiang Ruico Advanced Materials Co., Ltd. (Stock No.873233)
Add: No.188, Liangshan Road, Linghu Town, Nanxun District, Huzhou City, Zhejiang Province, China 313018
Phone: +86 (572) 2903236
Fax: +86 (572) 2905222
Email:[email protected]
Zhejiang Ruico Advanced Materials Co., Ltd is a professional acrylic resins Manufacturers and flame retardants factory, our company was established in 2012, listed in China on 2019, Ruico is a national high-tech enterprise, Passed ISO9001 quality management system, have provincial-level R&D center, hired academicians, PhD, and other technicians totally 35 people, got 42 patents, the rule-maker of national flame retardant standards.
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No.188, Liangshan Road, Linghu Town, Nanxun District, Huzhou City, Zhejiang Province, China
+86 (572)
2903236
+86 (572)
2905222
+86 15088303595
+86 15088303595
