Emulsions Flashcards
1
Q
What are emulsions
A
Thicker than oil or water and have many uses that depend on their special properties
2
Q
What do emulsions provide
A
Better texture, coating ability and appearance
3
Q
What do emulsifiers have
A
Hydrophilic and hydrophobic properties
4
Q
What do vegetable oils that are unsaturated contain
A
double carbon- carbon bonds
5
Q
How can these bonds be detected
A
By reacting with bromine water
6
Q
How can vegetable oils that are unsaturated be hardened
A
By reacting them with hydrogen in the presence of a nickel catalyst 60C
7
Q
Why are oils used to produce emulsions
A
They do not dissolve in water
