"PH Values "
Battery acid 1.0
Gastric acid 2.0
Lemon juice 2.4
Cola 2.5
Oxygenated water 2.5 - 3.0
Vinegar 3.0
Orange or apple juice 3.5
Beer 4.5
Coffee 5.0
Milk 6.6
Pure water 7.0
Blood 7.35 - 7.45
Plain shampoo 8.0
Sea water 8.0
Permanent wave 8.5 - 9.2
Hand soap 9.0 - 10.0
Hair dye 9.5 - 10.5
Magic straight 11.5
Household ammonia 11.5
Bleach 12.3
Caustic soda 12.7
Household lye 13.5
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