subject: Paraffin Wax: A Useful Chemical [print this page] Paraffin wax is also known as canning wax and baker's wax. It is a kind of alkane or saturated hydrocarbon. The chemical is a white, tasteless and odorless waxy solid. The chemical has a melting point between 48 and 66 degree Celsius. The translucent wax has a density of 0.9 g/cm3. The wax is insoluble in water. The chemical is soluble in benzene, ether and esters. It does not get affected by common chemical reagents. The chemical burns readily. It is a very good electric insulator. The wax shows an electric resistivity between 1013 and 1017 ohm metre. Further, the hard wax is an effective neutron moderator.
Paraffin wax was produced commercially for the first time in 1867. The wax is extracted from petroleum. Purification of the wax includes chemical treatment, fractionation, distillation, recrystallization and decolorization by adsorbents.
Paraffin wax has several industrial applications. Pure paraffin is relatively brittle at normal room temperature. It is prone to chipping and breakage when worked upon. The crystal properties of the chemical are often modified to increase its industrial uses. The crystal properties are modified by adding branching to the hydrocarbon chain. The changes are usually made with the help of additives, such as microcrystalline wax, EVA copolymers or other forms of polyethylene. The paraffin with modified properties exhibit smaller crystalline structure, higher viscosity and modified functional properties.
Paraffin wax is edible. It is widely used as food preservative and stiffener. It adds luster and shine to the food items and makes them more attractive. It is commonly added to fruits, vegetables, chocolates and candies. The chemical improves the life and freshness of the fruits and vegetables. Some cheeses are enclosed in the wax to prevent spoilage from moisture and mildew. Paraffin is added to chocolates and candies to give them a nice, glossy and shiny coating. The wax also helps the chocolates and candies to remain solid at room temperature. The chemical is also used to seal home-canned jams and jellies. You may purchase the wax from a grocery store. It is important to use food-grade wax in food items. Wax that is used for candle making and industrial applications contain ingredients which are not edible. It is important to know that paraffin is flammable. It is preferable to warm the wax gently in a microwave or double-boiler.
The chemical is also used in cosmetics. It helps to make the cosmetic products shiny and creamy. The chemical is widely used to manufacture lipsticks, creams and body lotions. The chemical increases blood circulation through the skin. It also locks the natural moisture of the body. It makes the skin soft and smooth. The wax is used in several luxurious spa treatments. It is usually applied on hands, feet and elbows. Paraffin wax is also widely used for manufacturing candles, Tarpaulin, wax papers, polishes and electrical insulators.
