![]() The paraffin wax has a molar mass equal to 785 g/mol and a C/O ratio of 18.8/1 (Krupa and Luyt 2001). The autoignition temperature is reached at 473☏ or 245☌ (Lewis, 2002). The flash point equals 390☏ or 198☌ (Lewis 2002). The melting point ranges from 47 to 65☌ (Lewis 2002). The density varies between 0.88 and 0.94 g/cm3 (Lewis 2002 Krupa and Luyt 2001). Table 9.1 shows the paraffin wax properties including the values of wax density, melting point, flash point, and autoignition temperature. Paraffin waxes are commonly classified in the petroleum industry literature as paraffin, intermediate and microcrystalline types (Jowett 1984 Speight 1991). Paraffin waxes are chemically stable and have a negligible degree of sub cooling during nucleation. It contains above C8, and smaller amounts of isoalkanes, cycloalkanes, and aromatics. There is no phase separation, and the phase change process only results in a small volume change (He et al. ![]() It contains above C8, and smaller amounts of isoalkanes, cycloalkanes and aromatics. Paraffin wax can be defined as a fraction of petroleum dominated by n-alkanes that are solid at ambient temperature (Chouparova and Philp 1998). It consists of a mixture of solid aliphatic hydrocarbons of high molecular weight, such as C36H74. Paraffin wax is produced by refining and de-waxing light lubricating oil stocks. The source of paraffin wax is crude oil, which is derived from organic materials. Paraffin wax is a tasteless and odorless, white, translucent solid. ![]()
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