universal indicator उदाहरण वाक्य

These commercial indicators ( e . g ., universal indicator and Hydrion papers ) are used when only rough knowledge of pH is necessary.
A universal indicator is typically composed of water, propan-1-ol, phenolphthalein sodium salt, sodium hydroxide, methyl red, bromothymol blue monosodium salt, and thymol blue monosodium salt.
Other doctors noted that the study involved only 33 women, and said further research is needed to confirm that the proteins are, in fact, a universal indicator of the infections.
The design of a universal indicator requires a mixture of indicators whose adjacent p " K " a values differ by about two, so that their transition pH ranges just overlap.
A "'universal indicator "'is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 1 to 14 to indicate the acidity or alkalinity of solutions.

how does Litmus paper or Universal indicator work . what chemicals are on the paper ? are these harmful ? and where can i buy the paper ? Preceding talk ) 08 : 16, 21 February 2010 ( UTC)
Read the fine print on the package of tablets, or try a different brand of MOM . I am assuming you are not doing this with a universal indicator which is designed to change colors as the reaction occurs ? alteripse 00 : 46, 27 October 2005 ( UTC)
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