Struktura i svojstva voskova

Waxes are all solids and liquids found in nature, and to those that occur individually in waxes, such as the hydrocarbons, acids, alcohols, and esters irrespective of their source or method of preparation, provided such couslituents are waxlike in their properties. Because of their complex structure, it is not easy to describe them and because of this there is different waxes classification. By the origin, they are divided into natural and synthetic. Natural waxes are materials made from plant and animals derived from vegetables, beans, bees and other insects. Natural waxes have properties different from synthetic waxes derived from crude oil, mineral or petroleum products. Well known natural waxes are carnauba, soya, montan, beeswax, schelak, but their quantity is very small compared to crude oil and synthetic waxes. Paraffin is synthetic wax a mixture of aliphatic or saturated hydrocarbons recovered from crude oil by distillation. In this study properties of six waxes are investigated, three from natural sourceand three synthetic. Structural analysis of waxes were performed by using FTIR-ATR spectroscopy and surface characteristics by using contact angle measurement. Thermal properties of waxes were analyzed by using differential scanning calorimetry (DSC). Analysis of burning were performed on the candles prepared from different waxes and velocity of wax burning is estimated.