How does a chemical indicator work?


A chemical indicator is clearly visible and the reaction is usually sudden. It is a change in the taste, smell, and/or color. Indicating that two chemicals have been combined and there is a definite reaction. pH is common in chemical indicators. The pH scale ranges from 0-14. If the pH balance is 7.0 it is a neutral solution. If the pH is above 7.0 it is basic or alkaline; below 7.0 it is considered to be acidic. For example, the pigment of red cabbage is intensified at a basic pH level and it loses its intensity at low or acidic pH level. This is an example of a chemical indicator.

1 Additional Answer
A chemical acid base indicator works by changing color when the pH changes. The indicator is not part of the main reaction, but is added to show when the main reaction is done or when the pH of the solution changes. An indicator is a substance that changes color at different pH levels.
Q&A Related to "How does a chemical indicator work?"
A chemical indicator is also known as a pH indicator. This indicator is generally used in order to figure out how much acid is within a given chemical compound. The chemical indicator
You use pool chemicals to adjust the balance of certain substances present in the water. Indicators are included with test kits to measure chemical levels in the pool. You test the
HEAT, Heat is the the number one indication of a reaction. Also, changes of state of matter and mass are also indicators of a chemical reaction. an example is when an iron fence rusts
( ′kem·i·kəl ′in·də′kād·ər ) (analytical chemistry) A substance whose physical appearance is altered at or near the
Explore this Topic
The indicator solution for starch is called 'Starch Indicator Solution, 1%.' It does not have a chemical name. It does not have a chemical formula. ...
How an indicator works would depends on the type of indicator. For example a chemical indicator works by chemical reaction when the chemical is applied to a test ...
Chemical indicators are any substance that gives a visible sign, by a change in color, of the presence or absence of a concentration of a chemical substance such ...
About -  Privacy -  AskEraser  -  Careers -  Ask Blog -  Mobile -  Help -  Feedback © 2014