CHAPTER 5.2

IS A UNIT OF MEASUREMENT THAT INDICATES WHETHER A SUBSTANCE IS ACIDIC NUETRAL OR ALKALINE

• PH NUMBERS INDICATE THE AMOUNT OF ACIDD OR ALKALI IN A WATER BASED SOLUTION
• ONLY SOLUTIONS CONTAINING WATER AND OR WHICH DISSOLVE IN WATER CAN HAVE ACIDIC OR ALKALINE NATURE

A SOLUTION IS ACIDIC OR ALKALINE E DEPENDING ON THE NUMBER OF NEGATGIVE HYDROXIDE IONS OR POSITIVE HYDROGEN IONS IT CONTAINS

• AN ION IS AN ATOM THAT HAS GAINED OR LOST ELECTRONS
• IF A SOLUTION HAS MORE POSITIVE HYDROGEN IONS IT IS ACIDIC
• IF A SOLUTION HAS MORE NEGATIVE IONS IT IS ALKALINE
• WHEN A SOLUTION HAS AN EQUAL AMOUNT OF HYDROGEN AND HYDROXIDE IONS IT IS NEUTRAL

ACIDIC

NEUATRAL

ALKALINE

RANGES FROM THE NUMBER O-14 WITH NUMBERS LESS THAN 7 INDICATE ACID WHILE NUMBERS GREATER THAN INDICATE ALKALINE

WHICH MEANS EACH STEP OR NUMBER INCREASES BY MULTIPLES OF 10

• THREE MEATHOD SOF TESTING ANY PRODUCT TO DETERMINE THE PH LEVEL INCLUDE PH NITRAZINE PAPER PH PENICIL OR A PH METER
• THE ACID MANTLE THAT COATS THE SKIN AND HAIR CAN ALSO BE MEASURED WITH THESE

MEANS THE PH IS BALANCED AT A CERTAIN NUMBER NOT NESCICARILY 4.5-5.5

BALANCED WITH A RANGE OF 4.5-5.5

4.5-5.5