102.12-102.13 pH and hair care product knowledge
ph balance
4.5-5.5
on the ph scale what is 0-6
acidic
on a ph scale what is 8-14
alkaline
alkali
decrease concentration of hydrogen ions when placed in water bc it accepts or combines with positive hydrogen ions
powders
equal mixtures of inorganic and organic substances that do not dissolve is water
solution is neutral when it has
equal number of positive and negative ions
emulsions
formed when 2 or more immiscible substances are united by binder or gum like substance
acid
increased concentration of hydrogen ions when placed in water because it donates, or releases positive hydrogen ions
solutions
mixture of 2 or more kinds of evenly dispersed molecules
suspensions
mixtures of 2 or more molecules that separate when left standing and need to be shaken before use
soaps
mixtures of fats and oils converted to fatty acids by heat and then purified
ointments
mixtures of organic substances and a medicinal agent usually found in semi solid form
solution is alkaline if it has
more negative hydrogen ions
solution is acidic if it has
more positive hydrogen ions than negative hydroxide ions
ph meter
most accurate, electrode placed in substance, can measure ph of acid mantel
on a ph scale what is 7
neutral
pure water
ph value of pure water is neutral
PH
potential hydrogen; numerical measurement that indicates the acidity or alkalinity of water based substance
solute
substance that dissolves into a liquid and form a solution
solvent
substance that is able to dissolve into another substance
indicator liquid
uses color changes, blue paper turns red in acid, red paper turns blue in alkaline