CHEMISTRY GLOSSARY
deionised water → deionizirana voda
Deionised water is water from which ionic salts have been removed by ion-exchange. It is used for many purposes as an alternative to distilled water.
| Type of water | Conductivity / µScm-1 |
|---|---|
| Ultrapure water | 0.05 |
| Distilled water | 0.5 |
| Tap water | 50 |
| Ocean water | 50 000 |
plastic welding → varenje plastike
Plastic welding is the fusion of two pieces (usually of the same plastic type) with a directed hot air jet and plastic welding rod. Used increasingly for the manufacture of tanks, floats and other items. Useful for repair of pipework (either temporary or permanent).
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.
regeneration → regeneracija
Regeneration is the process of restoring an ion exchange medium to a usable state after exhaustion. The cation exchanger is normally regenerated with hydrochloric acid and the anion exchanger with sodium hydroxide.
Daniell cell → Daniellov članak
In 1836 the British chemist John Frederic Daniell (1790-1845) proposed an improved electric cell that supplied an even current during continuous operation. Daniell cell consisted of a glass jar containing copper and zinc electrodes, each immersed in their respective acidic sulphate solutions. The two solutions were separated by a porous clay cylinder separator. It was a galvanic cell in which the spontaneous electrodissolution of zinc and electroplating of copper provided the electrical current.
Zn(s) |
→ | Zn2+ + 2e- |
+0.763 V |
Cu2+ + 2e- |
→ | Cu(s) |
+0.337 V |
Zn(s) + Cu2+ |
→← | Zn2+ + Cu(s) |
+1.100 V |
electric cell → električni članak
Electric cell (battery) is a device that is capable of changing some form of energy, such as chemical, nuclear or radiant energy, into electricity. A solar cell, for example, consists of a semiconductor junction that converts sunlight directly into electricity. A dry cell battery converts chemical energy into electricity.
strong electrolyte → jaki elektrolit
Strong electrolytes are those electrolytes which in water solutions completely dissociate into their ions. They conduct electric current very well.
temperature rating → temperaturno područje
Temperature rating is the maximum and minimum temperature at which the material may be used in continuous operation without loss of its basic properties. For example, temperature ratings are often quoted for electrical insulators, specifying the maximum temperature at which they provide adequate protection against electrical breakdown.
Citing this page:
Generalic, Eni. "Ionska struja." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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