Most modern candles are made of paraffin wax

Refined granular wax is a kind of petroleum wax. It is a flake or needle crystal obtained from the lubricating oil fraction obtained by distillation of crude oil by solvent refining, solvent dewaxing or wax freezing crystallization, press dewaxing, and then solvent deoiling, refining and wax paste. Also known as crystal wax, carbon atom number is about 18 ~ 30 of the hydrocarbon mixture, mainly divided into straight chain alkanes (about 80% ~ 95%), there are a small number of individual branch chain alkanes and long side chain of the single ring cycloalkanes (the total content of both below 20%). The main quality indicators are melting point and oil content, the former means temperature resistance, the latter means purity.

Each type of wax is divided into different varieties according to the melting point, generally every 2℃, such as 52,54,56,58 and other grades. According to the different degree of refining, it can be divided into three kinds: full refined paraffin, semi-refined paraffin and crude paraffin. Widely among them before the two purposes, mainly used as food and other commodities, such as wax paper, crayons, candles, carbon paper) of components and packing materials, baking container with dressing, cosmetics raw materials, used for fruit preservation, improve rubber insulation aging resistance and increase flexibility, electrical apparatus, precision casting, etc., can also be used to generate synthetic fatty acid oxidation. Crude paraffin is mainly used in the manufacture of matches, fiberboard and canvas due to its high oil content. After ADDING POLYOLEFIN ADDITIVE TO PARAFFIN, ITS melting point increases, its adhesion and flexibility increase, and it is widely used in the production of moisture-proof and waterproof wrapping paper, cardboard, surface coating of some textiles and candles.

The paper immersed in paraffin wax can be prepared with good waterproof performance of various wax paper, can be used in food, medicine and other packaging, metal rust and printing industry; After adding granular paraffin into cotton yarn, the textile can be soft, smooth and elastic; Paraffin can also be made detergent, emulsifier, dispersant, plasticizer, grease, etc. As the resources of animal and plant wax are increasingly strained, most candles are now made from paraffin wax. Paraffin melts when heated, candle burns and emits light, black smoke and heat.

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