What does ph indicator mean?
Definitions for ph indicator
ph indi·ca·tor
This dictionary definitions page includes all the possible meanings, example usage and translations of the word ph indicator.
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Wiktionary
pH indicatornoun
An acid-base indicator.
Wikipedia
PH indicator
A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. Hence, a pH indicator is a chemical detector for hydronium ions (H3O+) or hydrogen ions (H+) in the Arrhenius model. Normally, the indicator causes the color of the solution to change depending on the pH. Indicators can also show change in other physical properties; for example, olfactory indicators show change in their odor. The pH value of a neutral solution is 7.0 at 25°C (standard laboratory conditions). Solutions with a pH value below 7.0 are considered acidic and solutions with pH value above 7.0 are basic. Since most naturally occurring organic compounds are weak electrolytes, such as carboxylic acids and amines, pH indicators find many applications in biology and analytical chemistry. Moreover, pH indicators form one of the three main types of indicator compounds used in chemical analysis. For the quantitative analysis of metal cations, the use of complexometric indicators is preferred, whereas the third compound class, the redox indicators, are used in redox titrations (titrations involving one or more redox reactions as the basis of chemical analysis).
Wikidata
pH indicator
A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH of the solution can be determined visually. Hence a pH indicator is a chemical detector for hydronium ions or hydrogen ions in the Arrhenius model. Normally, the indicator causes the colour of the solution to change depending on the pH. Indicators can also show change in other physical properties; for example, olfactory indicators show change in their odor. At 25 °C, considered the standard temperature, the pH value of a neutral solution is 7.0. Solutions with a pH value below 7.0 are considered acidic, whereas solutions with pH value above 7.0 are basic. As most naturally occurring organic compounds are weak protolytes, carboxylic acids and amines, pH indicators find many applications in biology and analytical chemistry. Moreover, pH indicators form one of the three main types of indicator compounds used in chemical analysis. For the quantitative analysis of metal cations, the use of complexometric indicators is preferred, whereas the third compound class, the redox indicators, are used in titrations involving a redox reaction as the basis of the analysis.
Numerology
Chaldean Numerology
The numerical value of ph indicator in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of ph indicator in Pythagorean Numerology is: 9
Examples of ph indicator in a Sentence
Before, it (Libor) had been a very minor cog in global financial markets. Now, it became used very widely as an indicator of stress, mEGA PROBS.
Patients can be [made] aware of increased swelling, edema is not well understood but is an indicator something is wrong.
These data will encourage future interrogation of menstrual symptoms and pathologies as an indicator of long-term health outcomes and may provide an early opportunity to implement preventative strategies to improve women's health across the lifespan.
Generally, if the average indicator of the Chinese economy is OK, the way for the central bank to have a specific policy targeted to the real estate market is difficult.
Although silence is sometimes a weak indicator of intent, it is a different story when Congress actively considers legislation to address a major policy issue, yet deliberately declines to enact it.
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"ph indicator." Definitions.net. STANDS4 LLC, 2024. Web. 29 Apr. 2024. <https://www.definitions.net/definition/ph+indicator>.
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