Paraffin wax - Wikipedia
WEBParaffin 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: Liquid and Solid Types - PISHRO CHEM
WEBAug 30, 2023 · Paraffin wax, available in both liquid and solid forms, serves an array of industries with its versatile properties and applications. Understanding the distinctions between these two forms can help consumers and …
Paraffin Wax - an overview | ScienceDirect Topics
WEBThe term paraffin waxes is used for mixtures of various hydrocarbon groups, especially paraffin and cycloalkanes, that are solid at ambient temperature. Paraffins are present in large amounts in nature, but are also produced synthetically and are formed as byproducts in processing certain natural substances.
Does wax go through a sharp phase transition when it melts?
WEBAug 2, 2015 · Does wax change sharply from being solid to liquid as it heats up or is there a smooth cross-over? PS: Even though my question can be answered by a simple yes/no, I would very much appreciate a detailed answer. Why is wax different/similar to water when it melts? If the answer is 'no', what happens at the transition?
Rheological aspects of solid-to-liquid phase transitions in paraffin ...
WEBSep 15, 2024 · In contrast, paraffin wax exhibits an intermediate mesophase region, between the glassy state and the isotropic liquid phase attributed to multiple solid-to-solid transitions between the so-called rotator phases.
Experimental and numerical analysis of paraffin waxes during ...
WEBDec 1, 2021 · The three commercial paraffin waxes selected in this study, RT-47, RT-50 and RT-60, are primarily used in latent heat thermal energy storage systems. The investigation is performed for spherical capsules that have internal diameter of 80 mm, 90 mm and 100 mm.
Paraffin As a Phase Change Material to Improve Building …
WEBOct 20, 2021 · Paraffin with 5–17 carbon atoms is usually in a liquid state at room temperature, and those with more than 17 are waxes. Solid waxes are a mixture of saturated hydrocarbons and are naturally linear, iso branched, or cycloalkanes [35]. Figure 2 shows the typical solid-state paraffin wax available in the local markets.
Paraffin Wax-Based Thermal Composites - IntechOpen
WEBJun 9, 2021 · Whilst, in the state change, two phases of the paraffin wax undergoes thermal excitation, resulting in conversion of solid phase into liquid phase at the melting temperature, which is known as solid–liquid phase change.
Numerical investigation of paraffin wax solidification in spherical …
WEBJun 20, 2019 · The experimental study of solid-liquid phase change, specially concentrates on the boundary conditions and the physical properties of the final solid product. In this research paper the solidification of …
paraffin wax - Encyclopedia Britannica
WEBparaffin 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.