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Chemistry
A branch of physical science that is concerned with the study of matter and energy and how they interact.
19Categories 145369Terms
Add a new termContributors in Chemistry
Chemistry > Analytical chemistry 
freeboard
Chemistry; Analytical chemistry
The space provided above the resin bed in an ion-exchange column to allow for expansion of the bed during backwashing.
calibration reference
Chemistry; Analytical chemistry
Any of the standards of various types that indicate whether an analytical instrument or procedure is working within prescribed limits; examples are test solutions used with pH ...
relative stability test
Chemistry; Analytical chemistry
A color test using methylene blue that indicates when the oxygen present in a sewage plant’s effluent or polluted water is exhausted.
fusion tube
Chemistry; Analytical chemistry
Device used for the analysis of the elements in a compound by fusing them with another compound; for example, analysis of nitrogen in organic compounds by fusing the compound with ...
capacity
Chemistry; Analytical chemistry
In chromatography, a measurement used in ion-exchange systems to express the adsorption ability of the ion-exchange materials.
replication
Chemistry; Analytical chemistry
The formation of a faithful mold or replica of a solid that is thin enough for penetration by an electron microscope beam; can use plastic (such as collodion) or vacuum deposition ...
gas analysis
Chemistry; Analytical chemistry
Analysis of the constituents or properties of a gas (either pure or mixed); composition can be measured by chemical adsorption, combustion, electrochemical cells, indicator ...
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