Emulsions
Emulsions: Overview
This Topic covers sub-topics such as Emulsions, Emulsifying Agents, Dye Test, Viscosity Test, Demulsification, Electrical Conductivity Test, Spreading Test, Inversion of Phase in Emulsions and, Tests for Detection of Types of Emulsions
Important Questions on Emulsions
Milk can be preserved by adding a few drops of
If the scattered globules appear red and continuous phase colorless, then it is o/w type.
In dye test, if the scattered globules appear red and continuous phase colorless, then it is w/o type.
Distinguish between o/w and w/o emulsions using dye test.
Describe dye test for identification of emulsions.
In phase inversion, w/o type emulsion changes to o/w type and vice versa.
In phase inversion, w/o type emulsion changes to o/w type but the o/w type cannot change to w/o type emulsion.
In phase _____ (retention/inversion), w/o type emulsion changes to o/w type and vice versa.
w/o emulsions spread readily than o/w emulsion when spread on an oily surface.
Distinguish between o/w and w/o emulsions using spreading test.
o/w emulsions spread readily than w/o emulsion when spread on an _____(aquoeous/oily) surface.
o/w emulsions spread readily than w/o emulsion when spread on an oily surface.
Describe spreading test for identification of emulsions.
Describe viscosity test for identification of emulsions.
o/w emulsions will have higher viscosity value than w/o emulsion.
o/w emulsions will have _____ (higher/lower) viscosity value than w/o emulsion.
