indikator

indikator

A substance that undergoes an sharp, easily observable change when conditions in its solutions change. See, for example, acid-base indicator and redox indicator .

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Industry/Domain: Chemistry
Category: General chemistry
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Related terms

univerzalni indikator

Chemistry; General chemistry

A universal indicator is an indicator which undergoes several color changes over a wide range of pH . The color is used to "indicate" pH directly. Universal indicators are ...

indikator adsorpcije

Chemistry; General chemistry

A substance that indicates an excess of a reactant in a precipitation reaction. For example, dichlorofluorescein is added to an NaCl solution being titrated with silver nitrate. ...

mešoviti indikator

Chemistry; Analytical chemistry

Color-change indicator for acid-base titration end points in which a mixture of two indicator substances is used to give sharper end-point color changes.

indikator adsorpcije

Chemistry; Analytical chemistry

An indicator used in solutions to detect slight excess of a substance or ion; precipitate becomes colored when the indicator is adsorbed. An example is fluorescein.

hemijski indikator

Chemistry; Analytical chemistry

1. A substance whose physical appearance is altered at or near the end point of a chemical titration. 2. A substance whose color varies as the concentration of hydrogen ions in ...

isparljiv

Chemistry; General chemistry

A solid or liquid material that easily vaporizes. A material with a significant vapor pressure .

abraziv

Chemistry; General chemistry

A very hard, brittle, heat-resistant substance that is used to grind the edges or rough surfaces of an object. boron carbide, diamond, and corundum are abrasives.

diastereoizomer, diastereomer

Chemistry; General chemistry

Stereoisomers which are not mirror images of each other. Diastereomers are chemically similar but distinguishable; they have different melting points and boiling points and they ...

medicinska hemija

Chemistry; General chemistry

A branch of chemistry concerned with the discovery, design, synthesis , and investigation of biologically active compounds and reactions that these compounds undergo in living ...

slab elektrolit

Chemistry; General chemistry

A weak electrolyte is a solute that incompletely dissociates into ions in solution. For example, acetic acid partially dissociates into acetate ions and hydrogen ions, so that ...