Uses of paraffin wax hazards of paraffin wax

2022-07-22
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Paraffin wax is a kind of mineral wax and petroleum wax; It is a solvent from the lubricating oil distillate distilled from crude oil. The former two are widely used, Mainly used for food and other commodities (such as wax paper, crayons, candles, carbon paper, etc.

due to its high oil content, paraffin is mainly used to make matches, fiberboard, canvas, etc. after adding polyolefin additives to paraffin, its melting point increases, and its adhesion and flexibility increase. It is widely used in moisture-proof and waterproof packaging paper, paperboard, surface coating of some textiles, and candle production. The following small series introduces the use of paraffin and the harm of paraffin.

stone Use of wax

paraffin is a kind of petroleum processing products, a kind of mineral wax, and also a kind of petroleum wax. It is a flake or needle crystal obtained from solvent refining of lubricating oil distillate obtained from crude oil distillation, more oil information, oil blending technology. Please pay attention to wechat official account. The oil circle account number is ypq0910 solvent dewaxing or wax freezing crystallization, pressing and dewaxing to obtain wax paste, and then solvent deoiling and refining. It is used to make high-grade fatty acids, high-grade alcohols, matches, candles, waterproof agents, ointments, electrical insulation materials, etc

paraffin is divided into food grade (food grade and packaging grade, the former is superior) and industrial grade. Food grade is non-toxic, and industrial grade is inedible. Due to its high oil content, coarse stone wax is mainly used to make matches, fiberboard, canvas, etc. After adding polyolefin additives to paraffin, its melting point increases, and its adhesion and flexibility increase. It is widely used in moisture-proof and waterproof packaging paper, paperboard, surface coating of some textiles and candle production

after immersing the paper in paraffin, various waxed papers with good waterproof performance can be made, which can be used in food, medicine and other packaging, metal rust prevention and printing industry; After paraffin is added to cotton yarn, the textile can be soft, smooth and elastic; Paraffin can also be used to make detergents, emulsifiers, dispersants, plasticizers, greases, etc

fully refined paraffin and semi refined paraffin are widely used. They are mainly used as components and packaging materials for food, oral drugs and some commodities (such as wax paper, crayons, candles, carbon paper), coating dressings for baking containers, fruit preservation, electrical component insulation, improving rubber aging resistance and flexibility, etc. It can also be used for oxidation to produce synthetic fatty acids. GB 2760-96 stipulates that it is allowed to be used in gum base agent, with a limit of 50.0g/kg. It is also used for anti sticking in the production of glutinous rice paper abroad, with the dosage of 6g/kg. In addition, it is also widely used in the moisture-proof, anti stick and oil proof of food packaging materials. It is suitable for food chewing gum, bubble gum, drug positive oil and other components, as well as wax used for direct contact with food and drugs such as heat carrier, demoulding, tablet pressing, polishing, etc

harm of paraffin

although paraffin can produce many items, it also has certain harmfulness. Too much contact will directly affect our health. In order to make money and make those rice look more attractive to people, many businesses will put some wax on the rice, so that the whole barrel of rice looks very smooth, But you can still tell by looking carefully. Apples are the same. The fruits we eat in our daily life will also be waxed. It is an illegal act to think of ways to sell more goods recklessly in order to make money

classification of paraffin

1, microcrystalline paraffin

microcrystalline paraffin is mainly composed of outgoing chain hydrocarbons, cycloalkanes and some straight chain hydrocarbons, with a molecular weight range of about 500-1000. This is a relatively small crystal, soluble in non-polar solvents, insoluble in polar solvents

2. Liquid paraffin

there are many kinds of liquid paraffin, and their lubrication effects are also different. In the extrusion process, the initial lubrication effect is good, and the thermal stability is also good. However, due to poor miscibility, the product is easy to become sticky when used too much

3. Polyethylene wax

polyethylene wax refers to low molecular weight polyethylene with molecular weight of 1500-25000 or partially oxidized low molecular weight polyethylene. It is granular, white powder, massive and milky wax. It has excellent fluidity, electrical property and demoulding property

4. Semi refined paraffin

is a granular white solid, and its relative density increases with the increase of melting point. The product has good chemical stability, moderate oil content, good moisture-proof and insulation properties, and good plasticity. Semi refined paraffin wax produces candles with concentrated flames, smokeless and no tears. It is used for making candles, crayons, wax paper, general telecommunication equipment, short circuit, light industry, chemical raw materials, etc

5. Chlorinated paraffin

chlorinated paraffin is a golden or amber viscous liquid, which is non combustible, non explosive and extremely volatile. Soluble in most organic solvents, insoluble in water and ethanol. When heated to above 120 ℃, it decomposes slowly, which can release hydrogen chloride gas, and the oxides of metals such as iron and zinc will promote its decomposition. Chlorinated paraffin is the auxiliary plasticizer of PVC. Low volatility, non combustible, odorless and non-toxic. This product replaces part of the main plasticizer, which can reduce the product cost and reduce the flammability. It is mainly used for PVC cable material, water pipe, floor material, film, artificial leather, etc

editor's summary: that's all for the purpose and harm of paraffin. I hope it can help you. If you want to know more about it, you can pay attention to the information

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