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Basics of Chemistry Cosmetology : Milady Standard Cosmetology ©2007 Thomson Delmar Learning. All Rights Reserved.

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Presentation on theme: "Basics of Chemistry Cosmetology : Milady Standard Cosmetology ©2007 Thomson Delmar Learning. All Rights Reserved."— Presentation transcript:

1 Basics of Chemistry Cosmetology : Milady Standard Cosmetology ©2007 Thomson Delmar Learning. All Rights Reserved

2 MILADYS Standard Instructor Support Slides COSMETOLOGY The greater the difficulty, the more glory in surmounting it. Skillful pilots gain their reputation from storms and tempests Epictetus

3 MILADYS Standard Instructor Support Slides COSMETOLOGY Objectives Explain the difference between organic and inorganic chemistry Discuss the different forms of matter: elements, compounds, and mixtures Explain pH and the pH scale Describe oxidation and reduction (redox) reactions

4 MILADYS Standard Instructor Support Slides COSMETOLOGY Matter Anything that occupies space, has physical and chemical properties, and exists as a solid, liquid, or gas

5 MILADYS Standard Instructor Support Slides COSMETOLOGY Elements Simplest form of matter Cannot be reduced without loss of identity 90 – natural 22 – artificial Identified by a letter symbol C – O – H – N – S

6 MILADYS Standard Instructor Support Slides COSMETOLOGY Atoms and Molecules Atom: Particles from which all matter is composed. Molecules: Result of joined atoms. –Elemental molecule –Compound molecule

7 MILADYS Standard Instructor Support Slides COSMETOLOGY States of Matter Solid: Have shape, volume, weight (ice) Liquid: Have volume and weight, no shape (water) Gas: Have no volume or shape (steam)

8 MILADYS Standard Instructor Support Slides COSMETOLOGY Physical and Chemical Properties Physical: Determined without a chemical reaction (color, odor, weight, density)

9 MILADYS Standard Instructor Support Slides COSMETOLOGY Chemical: Determined with a chemical reaction (change identity – rusting iron, burning wood) Physical and Chemical Properties

10 MILADYS Standard Instructor Support Slides COSMETOLOGY Pure Substances and Mixtures Pure substances (distinct properties) Mixtures (elements combined physically)

11 MILADYS Standard Instructor Support Slides COSMETOLOGY Solutions, Suspensions, Emulsions Solution Solute Solvent Miscible liquids Immiscible liquids Suspension Emulsion

12 MILADYS Standard Instructor Support Slides COSMETOLOGY Surfactants Head Tail Surfactant molecule Oil in water emulsion (O/W)

13 MILADYS Standard Instructor Support Slides COSMETOLOGY Surfactants Water in oil emulsion (W/O)

14 MILADYS Standard Instructor Support Slides COSMETOLOGY Other Physical Properties Ointments Powders

15 MILADYS Standard Instructor Support Slides COSMETOLOGY Common Ingredients Alcohol Alkanolamines Ammonia Glycerine

16 MILADYS Standard Instructor Support Slides COSMETOLOGY Common Ingredients Silicones Volatile organic compounds

17 MILADYS Standard Instructor Support Slides COSMETOLOGY Potential Hydrogen and Ions Ion Ionization Anion Cation

18 MILADYS Standard Instructor Support Slides COSMETOLOGY Water and pH Hydrogen ion (H + ) is acidic Hydrogen ion (OH) is alkaline

19 MILADYS Standard Instructor Support Slides COSMETOLOGY The pH Scale pH: Parts hydrogen or potential hydrogen The scale: 0 – 14 pH 7: neutral

20 MILADYS Standard Instructor Support Slides COSMETOLOGY Acids –pH below 7.0 –Turn litmus paper from blue to red –Contracts and harden hair

21 MILADYS Standard Instructor Support Slides COSMETOLOGY Alkalis pH above 7.0 Known as base Turn litmus paper from red to blue Feel slippery and soapy on skin Soften and swell hair

22 MILADYS Standard Instructor Support Slides COSMETOLOGY Acid-Alkali Neutralization Reactions Pure water Neutralizing shampoos and normalizing lotions

23 MILADYS Standard Instructor Support Slides COSMETOLOGY Oxidation Reactions Oxidation Oxidation-reduction Exothermic Combustion

24 MILADYS Standard Instructor Support Slides COSMETOLOGY Reduction Reactions Oxidized Reduction Oxidizing agent

25 MILADYS Standard Instructor Support Slides COSMETOLOGY Redox Redox (a contraction from reduction and oxidation) Oxidation (relocating hydrogen) Reduction (adding or subtracting hydrogen)

26 MILADYS Standard Instructor Support Slides COSMETOLOGY Summary and Review What is chemistry?

27 MILADYS Standard Instructor Support Slides COSMETOLOGY Why is a basic understanding of chemistry important? What is the difference between organic and inorganic chemistry? What are atoms? What are elements? What are the physical and chemical properties of matter? Summary and Review

28 MILADYS Standard Instructor Support Slides COSMETOLOGY What is the difference between physical and chemical changes. Give examples Describe 3 states of matter. Explain elements, compounds, and mixtures Summary and Review

29 MILADYS Standard Instructor Support Slides COSMETOLOGY What is the difference between solutions, suspension, and emulsions? Give examples Define pH and the pH scale Explain the difference between oxidation and reduction reactions Summary and Review

30 MILADYS Standard Instructor Support Slides COSMETOLOGY Congratulations! Youve just completed one unit of study toward program completion!


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