CHEMISTRY GLOSSARY
graphite → grafit
Graphite is an allotrope of carbon. The atoms are arranged in layers as a series of flat, hexagonal rings. Graphite is a good conductor of heat and electricity. The layers cleave easily, making graphite useful as a solid lubricant. A process to make pure synthetic graphite was invented by the American chemist Edward Goodrich Acheson (1856–1931). The process consists of heating a mixture of clay (aluminum silicate) and powdered coke (carbon) in an iron bowl. The reaction involves the production of silicon carbide, which loses silicon at 4150 °C to leave graphite.
non-Newtonian fluid → nenewtonski fluid
Non-Newtonian fluid is a fluid whose viscosity changes when the gradient in flow speed changes. Colloidal suspensions and polymer solutions like ketchup and starch/water paste are non-Newtonian fluids.
nonelectrolyte → neelektrolit
Nonelectrolytes are substances which in solutions do not dissociate into ions and they do not conduct electric current.
groups in periodic system of elements → skupine periodnog sustava
Periodic system of elements is divided into 18 groups of chemical elements. Elements belonging to the same group have a same number of valence electrons and similar chemical properties. Elements of main groups are in 1., 2., and in groups 13. to 18. Different groups of elements can be named according to the first element in the group (elements of boron group, elements of carbon group), or they have some special names (noble gases, halogenic elements, halyde elements, earthalkali and alkali metals).
oligomer → oligomer
Oligomer is a substance consisting of molecules of intermediate relative molecular mass (molecular weight), the structure of which essentially comprises the multiple repetitions of units derived, actually or conceptually, from molecules of low relative molecular mass. In contrast to a polymer, the properties of an oligomer can vary significantly with the removal of one or a few of its units.
oligosaccharide → oligosaharid
Oligosaccharides are carbohydrates containing from three to ten monosaccharide units, each joined to the next by a glycoside bond.
organic acid → organska kiselina
Organic acid is an organic compound which is sour, most often these are carboxylic acids (RCOOH).
organic chemistry → organska kemija
Organic chemistry is a science about all compounds which consist of carbon atoms, except carbonates and oxides of carbon.
Citing this page:
Generalic, Eni. "Sửa báo cáo khoản vay nước ngoài." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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