CSV

pH Scale - CSV

The pH scale is a logarithmic measure of hydrogen ion concentration in aqueous solutions. Proposed in 1909 by Danish biochemist S.P.L. Sørensen, it is defined by the formula pH = -log₁₀[H⁺]. A pH of 7 is neutral, 0-6 is acidic, and 8-14 is alkaline (basic). It is widely used in chemistry, biology, agriculture, medicine, and environmental science. As a logarithmic scale where each pH unit represents a tenfold difference in hydrogen ion concentration, a change of 1 pH unit means the acidity or alkalinity changes by a factor of 10.

hydrogen ion concentration acidity alkalinity basicity chemistry aqueous solution logarithmic scale

code,slug,name,description,classification,examples,phValue
0,ph-0-strongly-acidic,pH 0 (Strongly Acidic),The most strongly acidic pH value.,Strongly Acidic,"[{""name"":""Hydrochloric Acid (1M)"",""ph"":""0.0""},{""name"":""Battery Acid"",""ph"":""0.0-1.0""}]",0
1,ph-1-gastric-acid,pH 1 (Gastric Acid),The pH value of human gastric acid.,Strongly Acidic,"[{""name"":""Gastric Acid"",""ph"":""1.0-2.0""}]",1
2,ph-2-lemon-juice,pH 2 (Lemon Juice),The pH value of citrus fruits like lemon juice.,Acidic,"[{""name"":""Lemon Juice"",""ph"":""2.0-2.3""},{""name"":""Vinegar"",""ph"":""2.4-3.0""}]",2
3,ph-3-orange-juice,pH 3 (Orange Juice),The pH value of orange juice and soft drinks.,Acidic,"[{""name"":""Orange Juice"",""ph"":""3.0-4.0""},{""name"":""Soft Drinks"",""ph"":""2.5-3.5""}]",3
4,ph-4-tomato,pH 4 (Tomato),The pH value of tomatoes and beer.,Weakly Acidic,"[{""name"":""Tomato"",""ph"":""4.0-4.6""},{""name"":""Beer"",""ph"":""4.0-5.0""}]",4
5,ph-5-coffee,pH 5 (Coffee),The pH value of black coffee and rainwater.,Weakly Acidic,"[{""name"":""Black Coffee"",""ph"":""5.0""},{""name"":""Rainwater"",""ph"":""5.0-5.5""}]",5
6,ph-6-milk,pH 6 (Milk),The pH value of milk and saliva.,Weakly Acidic,"[{""name"":""Milk"",""ph"":""6.5-6.8""},{""name"":""Saliva"",""ph"":""6.2-7.4""}]",6
7,ph-7-neutral,pH 7 (Neutral),"The pH of pure water, the boundary between acidic and alkaline.",Neutral,"[{""name"":""Pure Water"",""ph"":""7.0""}]",7
8,ph-8-seawater,pH 8 (Seawater),The pH value of seawater.,Weakly Alkaline,"[{""name"":""Seawater"",""ph"":""8.0-8.5""}]",8
9,ph-9-baking-soda,pH 9 (Baking Soda),The pH value of baking soda (sodium bicarbonate).,Weakly Alkaline,"[{""name"":""Baking Soda"",""ph"":""8.3-9.0""}]",9
10,ph-10-soap,pH 10 (Soap),The pH value of soap and borax.,Alkaline,"[{""name"":""Soap"",""ph"":""9.0-10.0""},{""name"":""Borax"",""ph"":""9.0-10.0""}]",10
11,ph-11-ammonia,pH 11 (Ammonia),The pH value of ammonia solution.,Alkaline,"[{""name"":""Ammonia Solution"",""ph"":""11.0""}]",11
12,ph-12-bleach,pH 12 (Bleach),The pH value of household bleach.,Strongly Alkaline,"[{""name"":""Bleach"",""ph"":""12.0-13.0""}]",12
13,ph-13-lye,pH 13 (Sodium Hydroxide),The pH value of sodium hydroxide (lye/caustic soda).,Strongly Alkaline,"[{""name"":""Sodium Hydroxide (Lye)"",""ph"":""13.0-14.0""}]",13
14,ph-14-strongly-alkaline,pH 14 (Most Strongly Alkaline),The most strongly alkaline pH value.,Strongly Alkaline,"[{""name"":""Sodium Hydroxide (1M)"",""ph"":""14.0""}]",14