What Are the Different Uses of Paraffin Oil?

Paraffin oil is a mineral oil, which is a colorless and odorless mixture obtained from the fractionation of crude oil. The main ingredients are C, H, and the chemical element symbol is CxHy, which can be used in food, medicine and industry.

Paraffin oil

There are several versions of the chemical element symbols of paraffin. One is that the main component of paraffin is a mixture of C and H. (It may contain oxygen, but this is not the main thing) Its chemical element symbol is CxHy. Another way to say is that paraffin is a mixture of several higher alkanes, mainly n-cosane (C22H46) and n-octacosane (C28H58), containing about 85% carbon and about 14% hydrogen. There is no single chemical Element symbol.

The main information is also called crystalline wax. It is a hydrocarbon mixture with about 18 to 30 carbon atoms. The main component is linear alkanes (about 80% to 95%). There are also a small number of alkanes with individual branches and long sides. Chain of monocyclic naphthenes (total content of both is less than 20%). Paraffin wax is made from crude oil distillation and lubricating oil fractions by solvent refining, solvent dewaxing or frozen crystallization of wax, dewaxing by pressing and dewaxing to obtain wax paste, which is then degreased and supplemented by refining flakes or needle-like crystals. According to the degree of processing and refining, it can be divided into three types: fully refined paraffin, semi-refined paraffin and crude paraffin. Each type of wax is divided into different varieties, such as 52, 54, 56, 58 and so on, according to the melting point. Crude paraffin has a high oil content and is mainly used in the manufacture of matches, fiberboards, and tarpaulins. Fully refined paraffin and semi-refined paraffin are widely used. They are mainly used as components and packaging materials for foods, oral medicines and certain commodities (such as wax paper, crayons, candles, carbon paper), coating materials for baking containers, and used for fruit preservation. Insulation of electrical components, improvement of rubber aging resistance and increase of flexibility, etc., can also be used for oxidation to produce synthetic fatty acids.

Density (20 , g / cm³) 0.87 0.98

Flash point ()> 230

Kinematic viscosity (mm² / s 100 ) 5 16

Freezing point (freezing point ) -20 12

Aniline point () 80 112

Acid value (mgkOH / g) 1.45 1.52

Aromatics (CA) content% <10

Naphthenic (CN) content% 35 ± 5

Paraffin (CP) content% 60 ± 5

Features of paraffin oil (filling oil for rubber):

Paraffin oil (rubber filled oil) has low volatile content and high flash point

The high flash point and low volatile content of paraffin oil series provide better weather resistance and low volatile properties at high temperatures for rubber products processing. In automotive rubber parts, wire and cable outer sheaths, home appliance parts, new building material seals and other applications, paraffin base oils have very good performance.

Paraffin oil (filler oil for rubber) low aromatic content

The paraffin oil has a low aromatic content, which is particularly important in the application of the peroxide vulcanization process. A low aromatic content can reduce the consumption of vulcanizing agents, thereby reducing costs. The low aromatic content and low volatility of paraffin-based oils far outperform other rubber-filled oils that are not refined enough.

The combination of low aromatic content and low volatility of paraffin oil plays a pivotal role in the application of EPDM rubber automotive door and window seals, gaskets and automotive soft hoses. Low aromatic content improves the rubber's resistance to oxidative degradation and low Volatility helps prevent aging and shrinkage, and helps to improve the bad appearance of the product (such as rough, air bubbles), these two characteristics help to extend the life of rubber products.

Application range

Paraffin oil (rubber filling oil) is widely used in IIR (butyl rubber), EPM (ethylene propylene rubber), EPDM (ethylene propylene diene rubber), IR (polyisoprene rubber), NR (natural rubber) and some Thermoplastic rubber is especially used in rubber products that require low odor, good initial color, good heat resistance and light resistance, which is extremely important in the manufacture of household appliances and children's toys. In many references for synthetic rubber industry applications, paraffin oil has been widely used in rubber processing formulations and has played a very important role.

Paraffin wax is a kind of mineral wax and a kind of paraffin oil; it is a solvent refined, solvent dewaxed or crude frozen crystallized from wax, squeezed and dewaxed to obtain wax paste, and then solvent-removed. Oil, refined flaky or needle-like crystals, also known as crystalline waxes, are hydrocarbon mixtures with about 18 to 30 carbon atoms. The main components are linear alkanes (about 80% to 95%), and a small amount Alkanes with individual branches and monocyclic naphthenes with long side chains (the total content of the two is less than 20%). The main quality indicators are melting point and oil content. The former indicates temperature resistance and the latter indicates purity. Each type of wax is divided into different varieties, such as 52, 54, 56, 58 and so on, according to the melting point. According to the degree of processing and refining, it can be divided into three types: fully refined paraffin, semi-refined paraffin and crude paraffin. Among them, the former two are widely used. They are mainly used as components and packaging materials for food and other commodities (such as wax paper, crayons, candles, carbon paper), coating materials for baking containers, and raw materials for cosmetics. They are used for fruit preservation and improve rubber resistance. Aging and increasing flexibility, electrical component insulation, precision casting, etc. can also be used for oxidation to produce synthetic fatty acids. Crude paraffin is mainly used in the manufacture of matches, fiberboards, tarpaulins, etc. due to its high oil content. After adding polyolefin additives to paraffin, its melting point increases, and its adhesion and flexibility increase. It is widely used in the production of moisture-proof and waterproof packaging paper, cardboard, surface coatings for certain textiles, and candles.

The uses of paraffin are very wide. After immersing the paper in paraffin, various wax papers with good water resistance can be prepared, which can be used in food, medicine and other packaging, metal rust prevention and printing industry. After paraffin is added to cotton yarn, it can make textiles soft, smooth and elastic. ; Paraffin can also be used to make detergents, emulsifiers, dispersants, plasticizers, and greases. As the resources of animal wax and vegetable wax are becoming more and more tight, most candles today are made from paraffin wax. Paraffin melts when heated, glows when the candle burns, emits black smoke, and exotherms.

It is a mineral oil that is not digested in the intestine and has very little absorption. It lubricates the intestinal wall and feces, and can prevent the absorption of water in the intestine, soften the stool and make it easy to discharge.

Jiufu can interfere with the absorption of vitamins A, D, K and calcium and phosphorus, which can cause anal itching during catharsis. Elderly patients may accidentally take medicine and occasionally cause lipopneumonia.

Not suitable for long-term use.

Paraffin oil, also known as mineral oil, is a colorless and odorless mixture obtained from the distillation of crude oil. It can be divided into two types of light mineral oil and general mineral oil, and the specific gravity and viscosity of light mineral oil are relatively low. Because mineral oil has low sensitization and good sealability, it can block the skin's moisture evaporation. Therefore, skin care products such as baby oil, lotion or cream are often used as smooth moisturizers. In addition, because it has good oil-soluble properties, it can also be used as a makeup remover in makeup remover oil or makeup remover. It is reported that the purification is not good, mineral oil with higher impurities has certain carcinogenicity.