Paraffin wax - Wikipedia
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] .
Paraffin wax | 8002-74-2 - ChemicalBook
2024年11月21日 · Paraffin wax is the common name for the mixture of solid higher alkanes, the molecular formula is CnH2n+2, where n=20-40. The excess oil residue in the wax is removed through the process of petroleum refining. It is then deoiled and separated by vacuum distillation.
Paraffin Wax - an overview | ScienceDirect Topics
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.
What Is The Chemical Composition Of Paraffin Wax? - Sciencing
2018年6月27日 · Paraffin wax is a familiar substance because it is used to make candles. It is a soft, white solid at room temperature that melts and burns easily. Its chemical composition is a mix of hydrocarbon molecules known as alkanes. Paraffin wax melts at temperatures between 125 and 175 degrees Fahrenheit, depending on its exact mixture.
Paraffin wax - Simple English Wikipedia, the free encyclopedia
Sodium in paraffin oil. 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.Heavier members of the series, such as that of octane, C 8 H 18, and mineral oil …
Paraffin wax - Wikiwand
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), and its boiling point is above 370 °C (698 °F).
Paraffin - an overview | ScienceDirect Topics
Paraffins occur as simple straight or branched polymeric chains of hydrocarbons of alkanes with a chemical composition of Cn H 2n+2. Paraffin wax was first commercially produced in 1867 by the chilling of petroleum to result in the precipitation of paraffin wax.
Paraffin wax structure | Download Scientific Diagram
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...
Chemical structure of paraffin wax (A), m-xylene (B) and n …
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).
Paraffin wax | Candle Making, Cosmetic Uses, Industrial …
2024年12月6日 · Paraffin wax is obtained from petroleum by dewaxing light lubricating oil stocks. It is used in candles, wax paper, polishes, cosmetics, and electrical insulators. It assists in extracting perfumes from flowers, forms a base for medical ointments, and supplies a waterproof coating for wood.
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