PH indicator

A pH indicator is a chemical compound that is added in small amounts to a solution so that the pH (acidity or alkalinity) of the solution can be determined easily. Hence a pH indicator is a chemical detector for protons (H+). Normally, the indicator causes the color of the solution to change depending on the pH.

Natural pH indicators

Beets
Blueberries
Carrots
Cherries
Curry Powder
Delphinium Petals
Geranium Petals
Grapes
Horse Chestnut Leaves
Morning Glories
Onion
Pansy Petals
Petunia Petals
Poison Primrose
Poppy Petals
Purple Peonies
Red cabbage http://chemistry.about.com/library/weekly/aa012803a.htm
Red Radish
Rhubarb
Rose Petals
Strawberries
Tea
Thyme
Turmeric
Tulip Petals
Violet Petals

Compound: A compound is an area of land that is surrounded by fences, walls, or barbed wire and is used for a particular purpose, especially an area containing buildings and where the entry and exit of people is controlled. (For example, the sprawling estate located in southern Maine which houses the Bush Fam...

PH: pH is a measure of the activity of hydrogen ions (H+) in a solution and, therefore, its acidity or alkalinity. In aqueous systems, the hydrogen ion activity is dictated by the dissociation constant of water (Kw) = 1.011 × 10−14 at 25 ?C) and interactions with other ions in solution. D...

Acidity: :For the condition of acidity, see acid....

~ Table of Content ~

►	Introduction
►	Natural pH indicators

►	FR: Indicateur de pH

~ Related Subjects ~

Acidity (2) - Alkalinity (2) - Solution (2) - Hydrogen (1) - Activity (1) - Soluble (1) - Aqueous (1) - Dissociation constant (1) - Ion (1) - Solvent (1) - Chemical (1) - PH (1) - Compound (1) - Color (1) - H (1) -

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