Razvijena je i validirana HPLC metoda za određivanje policikličkih aromatskih ugljikovodika (PAH) u jestivom ulju izoliranih na DACC (eng. donor-acceptor. Kad se aromatski ugljikovodici zagrijavaju s klorom (ili bromom) u prisutnosti željeza, dolazi do supstitucije vodika na jezgri, uz razvijanje halogenovodične. aromatski ugljikovodici translation in Bosnian-Kannada dictionary.
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They have C n H 2 n general formula e. Generaly the alkanes are fairly unreactive. Their carbon chain has one or more double or triple valence bond per molecule. Alkenes are acyclic branched or unbranched hydrocarbons having one or more double carbon-carbon bonds in their molecules. Alkynes acetylenes are acyclic branched or unbranched hydrocarbons having one or more triple carbon-carbon bond. Acetylene ethyne is a colourless unstable gas, C 2 H 2with a characteristic sweet odour.
Unsaturated hydrocarbons are organic compounds containing double alkenes or triple alkynes bonds in their molecules. Aromatic compounds are a major group of unsaturated cyclic hydrocarbons containing one or more rings, typified by benzene, which has a 6-carbon ring containing three double bonds.
Category:Aromatic hydrocarbons – Wikimedia Commons
The lower members of the various homologous series are used as refrigerants, propellant gases, fireextinguishing agents, and blowing agents for urethane foams. Alkynes that have only one triple bond form a homologous series: Unsaturated fatty acid is aromatsmi fatty acid whose carbon chain can absorb additional hydrogen atoms.
Historical use of the term implies a ring containing only carbon e. When polymerized, they yield plastics characterized by extreme chemical resistance, high electrical resistivity, and good heat aromatsko. Alkenes that have only one double bond form a homologous series: In the systematic chemical nomenclature, alkene names end in the suffix -ene.
All the bonds in benzene C 6 H 6 are the same length intermediate between double and single C-C bonds. Like alkenes, alkynes undergo addition reaction.
Alkenes typically undergo addition reactions to the double bond. They form haloalkanes with halogens when irradiated with ultraviolet radiation. In the systematic chemical nomenclature alkyne names end in the suffix -yne. The simplest are compounds such as tetrachloromethane CCl 4tetrabromomethane CBr 4etc.
Halocarbon is a compound containing no elements other than carbon, one or more halogens, and sometimes hydrogen.
Aromatski ugljikovodici by Sejma Emina on Prezi
Aromatic compounds are unsaturated compounds, yet they do not easily partake in addition reactions. Alkanes are present in natural gas and petroleum.
The most important of these are: Image Gallery Analytical chemistry Crystal systems Electrodes and cells Graphs and tables Hazard labels Laboratory apparatus Laboratory glassware Molecular geometry Structural formulas. The lower members of the series are gases; the high-molecular mass alkanes are waxy solid. It is lighter than air, easily soluble in acetone propanone and it is explosive under high pressure.
Alicyclic compounds are aliphatic compounds with a ring of atoms. In the systematic chemical nomenclature alkane names end arojatski the suffix -ane. The most important of these are:.