pH Values of Common Substances

pH Values of Common Substances
pH Values of Common Substances
In science, pH is a scale (from 0-14) used to measure the acidity or basicity of a solution. An acidic solution have lower pH values (less than 7) whereas a basic solution has bigger pH values (greater than 7). At room temperature, pure water has pH value of 7, which means it is neither acidic  nor basic in nature. It is neutral.

pH values of common substances
SubstancepH Value
Sulfuric Acid (H2SO4)1.01
Hydrochloric acid (HCl)1.08
Nitric acid (HNO3)1.08
Gastric juice1.20
Arsenic acid1.70
Citric Acid (Lemon Juice)2.0
Hydrofluoric acid (HF)2.12
Isocyanic acid (HOCN)2.23
Formic acid, CH2O2 (methanoic acid)2.38
Lactic acid, C3H6O3 (milk acid)2.44
Acetic acid, C2H4O2 (Vinegar)2.88
Apple2.9-3.3
Soft Drinks3.0
Carbonic acid (H2CO3)3.68
Oranges 3.0-4.0
Wine and Beer4.0
Tomatoes4.5
Bananas 4.5-4.7
Black Coffee5.0
Milk6.5-6.7
Rain Water6.5
Saliva6.7
Pure Water7.0
Common Salt7.0
Blood7.35-7.45
Tears7.4
Egg7.8
Baking Soda (Sodium Bicarbonate)8.3
Potassium acetate (CH3COOK)8.75
Sodium acetate (CH3COONa)8.75
Calcium carbonate (CaCO3)9.91
Milk of Magnesia10.5
Sodium carbonate (soda ash, Na2CO3)11.26
Calcium hydroxide (lime, Ca(OH)2)12.46
Sodium hydroxide (NaOH)12.88
Potassium hydroxide (KOH)12.88