Paraffin wax (or petroleum wax) is a soft colorless solid derived from petroleum, coal, or oil shale that consists of a mixture of hydrocarbon molecules containing between 20 and 40 carbon atoms. It is solid at room temperature and begins to melt above approximately 37 °C (99 °F), [2] and its boiling point is above 370 °C (698 °F). [2] .

2025年1月27日 · Paraffin wax, also commonly called ‘paraffin’, is a colourless or white, tasteless, odourless, translucent waxy solid. Paraffin wax has a typical melting point between about 46°C and 68°C. Pure paraffin wax is a combustible substance and insoluble in water but soluble in petroleum solvents and stable under normal conditions of use.

As illustrated in Figure 1, the majority of paraffin wax consists of normal paraffin (80-90%), while the remaining portion comprises branched paraffin (isoparaffin) and cycloparaffin ( Yao...

2020年9月9日 · Paraffin wax is a solid and crystalline mixture of hydrocarbons; it is usually obtained in the form of large crystals. It consists generally of normal paraffin ranging from C 16 to C 30 and may be higher.

Paraffin waxes form essentially two groups known as macro-crystalline and micro-crystalline. Macro-crystalline paraffin waxes are mixtures which consist of saturated normal C 18 –C 30 hydrocarbons and smaller amounts of isoalkanes and cycloalkanes. The molecular weights of the components vary between 250 and 400 and melting points between 40–60 °C.

Paraffin wax is the aliphatic chain, C 16 H 34 , and commercial xylene is a mixture of the three aromatic isomers ( o-, m-, and p-); the p-isomer is the predominant form (Windholz 1983).

General structure of paraffin waxes. ... from this present study were compared to parallel release studies with the same oxidant, KMnO 4 , encapsulated in different wax matrices at similar...

Paraffin is also a technical name for an alkane in general, but in most cases it refers specifically to a linear, or normal alkane. It is mostly found as a white, odorless, tasteless, waxy solid, with a melting point between 47C and 65C. It is insoluble in water, but soluble in …

2024年12月6日 · Paraffin wax, colourless or white, somewhat translucent, hard wax consisting of a mixture of solid straight-chain hydrocarbons ranging in melting point from about 48° to 66° C (120° to 150° F). Paraffin wax is obtained from petroleum by dewaxing light lubricating oil stocks.

In chemistry, paraffin is the common name for the alkane hydrocarbons with the general formula C n H 2n+2. Paraffin wax refers to the solids with n between 20 and 40, inclusive. The simplest paraffin molecule is methane, CH 4, a gas at room temperature.