pH
pHÂ P010
 A measure of the acidity or the alkalinity of a fluid. The scale ranges from 0 (acid) to 14 (alkali) with 7 considered neutral.
 The definitions of weak and strong acids, and weak and strong bases do not refer to pH, but instead describe whether an acid or base ionizes in solution.
 Finding good sealing materials can be difficult on both ends of the pH scale.
 Be aware that these numbers are exponents to the base 10. This means that a pH of 8 is ten times more alkali than a pH of 7.
 Here are som common pH values
ACID 
SOLUTION 
pH 
Acetic 
N 
2.4 
Acetic 
0.1N 
2.9 
Acetic 
0.01N 
3.4 
Alum 
0.1N 
3.2 
Arsenious 
saturated 
5.0 
Benzoic 
0.01N 
3.1 
Boric 
0.1N 
5.2 
Carbonic 
saturated 
3.8 
Citric 
0.1N 
2.2 
Formic 
0.1N 
2.3 
Hydrochloric 
N 
0.1 
Hydrochloric 
0.1N 
1.1 
Hydrochloric 
0.01N 
2.0 
Hydrocyanic 
0.1N 
5.1 
Hydrogen sulfide 
0.1N 
4.1 
Lactic 
0.1N 
2.4 
Malic 
0.1N 
2.2 
Orthophosphoric 
0.1N 
1.5 
Oxalic

0.1N 
1.6 
Sulfuric 
N 
0.3 
Sulfuric 
0.1N 
1.2 
Sulfuric 
0.01N 
2.1 
Sulfurous 
0.1N 
1.5 
Tartaric 
0.1N 
2.2 
BASES 
SOLUTION 
pH 
Ammonia 
N 
11.5 
Ammonia 
0.1N 
11.1 
Ammonia 
0.01N 
10.6 
Borax 
0.1N 
9.2 
Calcium carbonate 
saturated 
9.4 
Ferrous hydroxide 
saturated 
9.5 
Lime 
saturated 
12.4 
Magnesia 
saturated 
10.5 
Potassium 
0.01N 
11.0 
Potassium hydroxide 
N 
14.0 
Potassium hydroxide 
0.1N 
13.0 
Potassium hydroxide 
0.01N 
12.0 
Sodium bicarbonate 
0.1N 
8.4 
Sodium carbonate 
0.1N 
11.6 
Sodium hydroxide 
N 
14.0 
Sodium hydroxide 
0.1N 
13.0 
Sodium hydroxide 
0.01N 
12.0 
Sodium metasilicate 
0.1N 
12.6 
Sodium sesquicarbonate 
0.1N 
10.1 
Trisodium phosphate 
0.1N 
12.0 
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Posted
 On February 16, 2018