Chapter 12 - Part Two Flashcards
List the two parts of a shampoo molecule and their functions?
A: tail- attracts dirt, grease, debris, oil, but repels water
B: head - attracts water but repels dirt
List the four requirements of a good shampoo?
A: cleans of oils, debris, dirt
B: should work efficiently in hard as well as soft water
C: should not irritate the eyes or skin
D: leave the hIr and scalp in their natural condition
Is rain water soft or hard?
Soft
Is soft or hard water best for all types of shampooing?
Yes
Which type of water contains mineral salts?
Hard water
What is added to water in small amounts during the purification process to kill bacteria?
Chlorine
What electrical charge does a proton have?
Positive charge
What electrical charge does a electron have?
Negative charge
How do protons and electrons help dissolve a solid in water?
Positive and negative charges work together to pull apart, or dissolve the solids
What substance will not mix with water?
Oil and wax
What is the pH range for acids?
0-14
What’s the pH range for alkalis?
7-14
WhT is another term that means the same thing as detergent?
Surfactant
List four classifications of base detergents used in shampoos?
A: anionic- harsh cleanser that produces rich foam, rinses easily from hair
B: cationic
C: nonionic
D: ampholytic
Why is quaternary ammonium compound added to a shampoo?
Antibacterial action