The Main Function of Paraffin Wax is to Seal and Produce

Paraffin wax can be prepared from waxy fractions of natural or artificial petroleum by cold pressing or solvent dewaxing and sweating. Paraffin wax is usually a white waxy solid with a slight odor, with a melting point of 47 °C-64 °C and a density of about 0.8 g/cm3.

It is insoluble in water, but soluble in ether, benzene, and some esters. Paraffin does not react with common chemical reagents but can burn. https://www.echemi.com/

Pure paraffin is a good insulator, its resistivity is 1013-1017 ohm·m, which is higher than most materials except some plastics (especially Teflon).

Paraffin wax is also a good heat storage material, with a specific heat capacity of 2.14-2.9 J·g-1·K-1 and a heat of fusion of 200-220 J·g-1.

Paraffin wax is the main component of candles.Paraffin wax is the common name for the mixture of solid higher alkanes. Its molecular formula is CnH2n 2, where n=20-40.

paraffinParaffin wax can be prepared from waxy fractions of natural or artificial petroleum by cold pressing or solvent dewaxing and sweating.

Paraffin wax is usually a white waxy solid with a slight odor, with a melting point of 47 °C-64 °C and a density of about 0.8 g/cm3. It is insoluble in water, but soluble in ether, benzene, and some esters. Paraffin does not react with common chemical reagents but can burn.

Pure paraffin is a good insulator, its resistivity is 1013-1017 ohm·m, which is higher than most materials except some plastics (especially Teflon).

Paraffin wax is also a good heat storage material, with a specific heat capacity of 2.14-2.9 J·g-1·K-1 and a heat of fusion of 200-220 J·g-1.

Paraffin wax is the main component of candles.Paraffin wax is a hydrocarbon mixture extracted from certain distillates of petroleum, shale oil, or other bituminous mineral oils. The main component is a solid alkane, odorless and tasteless, and white or light yellow translucent solid. Paraffin wax is non-crystalline but has a clear crystal structure.

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There is also artificial paraffin. Paraffin wax is a kind of petroleum processing product, a kind of mineral wax, and a kind of petroleum wax. It is a flake or needle-shaped crystal obtained by solvent refining, solvent dewaxing, or freezing crystallization of wax and pressing dewaxing to obtain the lubricating oil fraction obtained from crude oil distillation, and then solvent deoiling and refining.

Used to make higher fatty acids, higher alcohols, matches, candles, waterproofing agents, ointments, electrical insulating materials, etc. Paraffin wax is divided into food grade (food grade and packaging grade, the former is excellent) and industrial grade. Food grade is non-toxic and industrial-grade is inedible.Physical propertiesParaffin wax, also known as crystalline wax, is usually a white, odorless waxy solid. It melts at 47°C-64°C and has a density of about 0.9g/cm3. It is soluble in gasoline, carbon disulfide, xylene, ether, benzene, chloroform, and tetrachloride. Carbon, naphtha, and other non-polar solvents are insoluble in polar solvents such as water and methanol.

Pure paraffin is a good insulator, its resistivity is 1013-1017 ohm·m, which is higher than most materials except some plastics (especially Teflon). Paraffin wax is also a good heat storage material, with a specific heat capacity of 2.14-2.9J·g-1·K-1 and a heat of fusion of 200-220J·g-1.

Chemical natureParaffin wax is a mixture of solid higher alkanes. The molecular formula of the main component is CnH2n 2, where n=17?35. The main components are straight-chain alkanes, a small amount of alkane with individual branches and monocyclic cycloalkanes with long side chains straight-chain alkanes are mainly n-docosane (C22H46) and n-octadecane (C28H58).

Paraffin does not react with common chemical reagents but can burn. Industrial catalytic cracking reactions can occur. The chemical activity of paraffin wax is low, neutral, and chemically stable. Under normal conditions, it does not interact with acids other than nitric acid and alkaline solutions.

PerformanceThe main performance indicators of paraffin wax are melting point, oil content, and stability.

1. Melting pointParaffin wax is a mixture of hydrocarbons, so it does not have a strict melting point like pure compounds. The so-called melting point of paraffin wax refers to the temperature at which the stagnation period first appears on the cooling curve when the melted paraffin wax sample is cooled under specified conditions.

Various wax products require paraffin wax to have good temperature resistance, that is, it does not melt or soften and deform at a specific temperature. According to the use conditions, the regions and seasons of use, and the differences in the use environment, commercial paraffin waxes are required to have a series of different melting points.

The main factor that affects the melting point of paraffin wax is the weight of the selected raw material fraction, and the melting point of paraffin wax from the heavier fraction is higher. In addition, the oil content also has a great influence on the melting point of paraffin wax. The more oil in paraffin wax, the lower its melting point.

1. Oil contentOil content refers to the amount of low-melting hydrocarbons contained in paraffin wax. Excessive oil content will affect the color and storage stability of paraffin wax, and it will also reduce its hardness. Therefore, the oleaginous wax paste removed from the vacuum fraction needs to be deoiled by the sweating method or the solvent method to reduce its oil content. However, most paraffin wax products need to contain a small amount of oil, which is beneficial to improve the gloss and mold release performance of the products.
2. StabilityIn the process of modeling or coating, paraffin wax products are in a hot melt state for a long time and are in contact with air. If the stability is not good, it is easy to oxidize and deteriorate, the color becomes darker, and even emits a bad smell. In addition, paraffin wax will turn yellow under light conditions during use.

Therefore, paraffin wax is required to have good thermal stability, oxidation stability, and light stability. The main factors affecting the stability of paraffin wax are the trace amounts of non-hydrocarbon compounds and fused ring aromatic hydrocarbons. In order to improve the stability of paraffin wax, it is necessary to deep refine the paraffin wax to remove these impurities.

The main purposeBecause of its high oil content, crude paraffin is mainly used in the manufacture of matches, fiberboards, tarpaulins, etc. After adding polyolefin additives to paraffin wax, its melting point increases, adhesion and flexibility increase, and it is widely used in moisture-proof and waterproof packaging paper, cardboard, surface coating of some textiles, and candle production.

After immersing the paper in paraffin wax, various wax papers with good waterproof performance can be prepared, which can be used in food, medicine, and another packaging, metal rust prevention, and printing industries after paraffin wax is added to cotton yarn, the textile can be soft, smooth and elastic Paraffin wax can also be made into detergents, emulsifiers, dispersants, plasticizers, greases and so on.

Fully refined paraffin and semi-refined paraffin have a wide range of uses. They are mainly used as components and packaging materials for foods, oral medicines, and some commodities (such as wax paper, crayons, candles, carbon paper), coating materials for baking containers, and used for fruit preservation, Insulate electrical components, improve rubber aging resistance and increase flexibility. It can also be used for oxidation to generate synthetic fatty acids.

GB 2760-96 stipulates that it is allowed to be used as a gum base, with a limit of 50.0g/kg. It is also used for anti-sticking in the production of glutinous rice paper abroad, with a dosage of 6g/kg.

In addition, it is also widely used for moisture-proof, anti-stick, and oil-proof of food packaging materials. It is suitable for food chewing gum, bubble gum, drug positron oil, and other components, as well as heat carrier, demoulding, tableting, polishing, and other waxes that directly contact food and drugs (the waxy fraction of petroleum or shale oil is cold-pressed, etc. Method made).

Paraffin oil can be mineral oil, a clear and unscented mixture acquired within the fractional distillation of oil. The main components are C and H, as well as the chemical element symbol is CxHy, which you can use in food, medicine, and industry.

There are lots of versions in the chemical element indicating paraffin. One theory is the primary component of paraffin is a mix of C and H. (It could contain oxygen, however, this is not essential) Its chemical element symbol is CxHy. Another argument is always that paraffin wax is a mix of several greater alkanes, mainly n-docosane (C22H46) and n-octadecane (C28H58), which have about 85% carbon and 14% hydrogen. There isn't one chemical element symbol.

The main materials can also be known as crystalline wax. It's a mix of hydrocarbons getting a carbon volume of about 18-30. The main component is straight-chain alkanes (about 80%-95%). Additionally, there is a small little bit of alkane with individual branches and extended sides.

Chain monocyclic cycloalkanes (the whole content of the is under 20%). Paraffin wax is acquired by solvent refining, solvent dewaxing or wax freezing crystallization, and pressing dewaxing within the lubricating oil fraction from oil distillation, then deoiling and additional refining to get flake or needle crystals.

In line with the quantity of refining, it might be split up into three types: fully refined paraffin, semi-refined paraffin, and crude paraffin. Every type of wax is split up into different varieties in line with the melting point, generally every 2°C, for instance, 52, 54, 56, 58 as well as other grades.

Crude paraffin features a high oil content which is mainly familiar with make matches, fiberboards, tarpaulins, etc. Fully refined paraffin and semi-refined paraffin have a wide array of uses.

They are mainly utilized as components and packaging materials for foods, dental medicines along with a couple of goods (for instance wax paper, crayons, wax lights, carbon paper), coating materials for baking containers, and useful for fruit upkeep, Insulate electrical components, improve rubber anti-aging while growing versatility, etc. It's also familiar with oxidizing to produce synthetic EFA's.

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