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Basic Chemistry
Milady standard cosmetology chapter 12
52
Cosmetology
12th Grade
10/05/2011

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Term
Acidic Solution
Definition
a solution that has a ph below7.0(neutral)
Term
Alkaline Solution
Definition
a solution that has a ph above 7.0(neutral)
Term
alkalis
Definition
aka: bases; compounds that react with acids to form salts
Term
alkanolamines
Definition
used to neutralize acids or raise the ph of many hair products
Term
alpha hydroxy acids
Definition
acids derived from plants that are often used to exfoliate the skin
Term
ammonia
Definition
colorless gas with a pungent odor that is composed of hydrogen and nitrogen
Term
anion
Definition
an ion with a negative electrical charge
Term
atoms
Definition
smallest chemical components of an element. structures that make up the element and have the same properties of the element
Term
cation
Definition
an ion with a positive electrical charge
Term
chemical change
Definition
a change in thge chemical composition or make-up of a substance
Term
chemical properties
Definition
characteristics that can be only determined by a chemical reaction and a chemical change in the substance
Term
chemistry
Definition
science that deals with the compostition, structures, and properties of matter, and how matter changes under diff. conditons
Term
combustion
Definition
rapid oxidation of a substance, with the production of heat&light
Term
compound molecules
Definition
a chemical combination of 2 or more atoms of diff. elements in definite(fixed)proportions
Term
element
Definition
simplest form of chemical matter; cannot be broken down into a simpler substance
Term
elemental molecules
Definition
molecule containing 2 or more atoms of the same element
Term
emulsifier
Definition
an ingredient that brings 2 normally incompatible materials together and binds them together
Term
emulsion
Definition
an unstable physical mixture of 2 or more immiscible substances plus a special ingredient
Term
exothermic reactions
Definition
chemical reactions that release a significant amount of heat
Term
glycerin
Definition
sweet,colorless,oily substance used as a solvent and as a moisturizer in skin and body creams
Term
immiscible
Definition
liquids that are not capable if being mixed together to form stable solutions
Term
inorganic chemistry
Definition
the study of substances that do not contain carbon, but may contain hydrogen
Term
ion
Definition
an atom or molecule that carries an electrical charge
Term
ionization
Definition
seperation of an atom or molecule into positive and negative ions
Term
lipophilic
Definition
oil-loving
Term
logarthm
Definition
multiples of ten
Term
matter
Definition
any substance that occupies space and has mass(weight)
Term
miscible
Definition
liquids that can be mixed together to form a stable solution
Term
molecule
Definition
chemical combo of 2 or more atoms in definite proportions
Term
oil-in-water emulsion
Definition
oil droplets emulsified in water
Term
organic chemistry
Definition
study of substances that contain carbon
Term
oxidation
Definition
chemical reaction that combines a substance with oxygen to produce an oxide
Term
oxidation-reduction
Definition
(redox) chemical reaction which the oxidizing agent is reduced and the reducing agent is oxidized(gaining oxygen)
Term
oxidizing agent
Definition
stubstance that releases oxygen
Term
ph
Definition
abbreviation used for potenial hydrogen. represents the quanity of hydrogen ions
Term
ph scale
Definition
measures the acidty and alkalinity of a substance. has a range from 0 to 14
Term
physical change
Definition
change in form or physical properties of a substance, without a chemical reaction or the creation of a new substance
Term
physical mixture
Definition
pysical combo of matter in any proportions
Term
physical properties
Definition
characteristics that can be determined without a chemical reaction and that do not cause a chemical change
Term
pure substance
Definition
chemical combo of matter in definite proportions
Term
reducing agent
Definition
adds hydrogen to a chemical compound or subtracts oxygen
Term
reduction
Definition
process through oxygen is subtracted from or hydrogen is added
Term
silicones
Definition
water-resistant lubricants for the skin, and nail polish dryers
Term
solute
Definition
the substance that is dissolved in a solution
Term
solution
Definition
a stable physical mixture or 2 or more substances
Term
solvent
Definition
substance that dissolves the solute and makes a solution
Term
states of matter
Definition
3 diff. forms of matter: solid,liquid, & gas
Term
surfactants
Definition
substances that allow oil and water to mix, or emulsify
Term
suspensions
Definition
unstable physical mixture of undissolved particles in a liquid
Term
thioglycolic acid
Definition
colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions
Term
volatile alcohols
Definition
alcohols that evaporate easily
Term
water-in-oil emulsion
Definition
water droplets are emulsified in oil
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