CHEMISTRY GLOSSARY
mineral water → mineralna voda
Mineral water is a groundwater that rises to the surface through a natural opening in the earth or rock and contains a relatively high concentration of mineral ions and trace of elements which can be radioactive or thermal.
waste water → otpadna voda
Waste waters are waters which pour down from housing, public or industrial plants and are polluted with mineral and organic substances and microorganisms.
crystal water → kristalna voda
Crystal water is water contained in certain salt crystals. It can be removed by heating. Crystals that contain crystal water are called hydrated and their salts hydrates.
mineral acid → mineralna kiselina
Mineral acid is an acid made from minerals by chemical reaction, e.g. hydrochloric acid is produced from sodium chloride and sulphuric acid is made from sulphur.
mineral oils → mineralna ulja
Mineral oils are oily liquids that are composed of hydrocarbons and are obtained as a product of petroleum, tar, coal, wood etc. distillation. They are used as lubricants.
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 |
distilled water → destilirana voda
Distilled water is water purified by distillation so as to free it from dissolved salts and other compounds. Distilled water in equilibrium with the carbon dioxide in the air has conductivity of about 0.8×10-6 S cm-1. Repeated distillation in vacuum can bring conductivity down to 0.043×10-6 S cm-1 at 18 °C. The limiting conductivity is due to self ionisation
soft water → meka voda
Soft water is any water that does not contain large concentrations of the dissolved minerals calcium or magnesium.
standard mean ocean water → standardna prosječna oceanska voda
Standard mean ocean water (SMOW) is a standard sample of pure water of accurately known isotopic composition which is maintained by the International Atomic Energy Agency. It is used for precise calibration of density and isotopic composition measurements.
heavy water → teška voda
Water molecules are composed of two hydrogen atoms and one oxygen atom (H2O). If the hydrogen atoms of a water molecule are replaced by deuterium atoms, the result is heavy water (D2O). Deuterium differs from hydrogen by having one neutron in the nucleus of the atom. There is approx. one part in 5000 D2O in normal water and it can be concentrated by electrolysis. Heavy water has a higher boiling point (101.4 °C) and melts at 3.6 °C. Heavy water is 20/18=1.11 times heavier than ordinary water.
Citing this page:
Generalic, Eni. "Mineralna voda." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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