CHEMISTRY GLOSSARY
non-polar solvent → nepolarno otapalo
Non-polar solvent is a liquid with non-polar molecules. It dissolves covalent compounds, non-water solvent.
polar covalent bond → polarna kovalentna veza
Polar covalent bond is a covalent bond in which the electrons are not equally shared because one atom attracts them more strongly than the other
polar solvent → polarno otapalo
Polar solvent is a liquid with polar molecules which dissolves polar compounds, because the charges on the endings of the solvent’s molecules attract the elements from ion crystals.
polar molecule → polarna molekula
Polar molecules are molecules at which centres of gravity of positive and negative charge are not in the same point.
polarised light → polarizirana svjetlost
Polarised light is light whose electromagnetic waves oscillate only in one flat vertical on expansion of the direction of radiation.
polariser → polarizator
Polariser is frequently a specially made prism from crystal of Iceland Spar (form of calcium carbonate), also known as Nicol’s prism. It can also be a small plate of tourmaline.
polarimeter → polarimetar
Polarimeter is an appliance which measures the angle of turning of polarisation light.
polarimetry → polarimetrija
Polarimetry measures the overall turning of the flat of polarised light. It is used when analysing optically active substances and compounds.
polarogram → polarogram
Polarogram is a graph of current versus potential in a polarographic analysis. The position of a polarographic wave in a polarogram along the x axis (E1/2) provides an identity of the substance while the magnitude of the limiting diffusion current (id) provides the concentration of this substance.
polarography → polarografija
Polarography is a volumetric technique which is based on a diffusion controlled analyte travel to the surface of dropping mercury electrode (DME). The surface of the working electrode (dropping mercury electrode) is constantly renewed under dropping conditions and, thus, the conditions under which reaction takes place are readily reproducible. Depolarisation potential enables identification of ions present in the solution, and by measuring the diffusion current their concentration is calculated. Polarography was discovered in 1922 by the Czech chemist Jaroslav Heyrovský (1890-1967).
Citing this page:
Generalic, Eni. "Polar." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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