statement

This entry may involve the drug content, on-line any recommendations on the use of drugs can not substitute medical advice.

Paraffin from certain petroleum, shale oil or other bituminous mineral oil distillate extracted from a hydrocarbon mixture, the main ingredient is solid paraffin, odorless and tasteless, white or light yellow translucent solid. Paraffin is amorphous, but with significant crystalline structure. Another artificial wax.

Paraffin is a petroleum processing products, is a mineral wax, petroleum wax is also a [1]. It is distilled from crude oil fractions by solvent refining, solvent dewaxing or wax by freezing crystallization, squeezing dewaxing prepared paste wax, and then by solvent removal oil refining flake or needle-like crystals. The system for higher fatty acids, higher alcohols, matches, candles, water, ointments, electrical insulating materials, etc. [2].

Min food grade paraffin (food grade and packaging level, preferably the former), and industrial-grade, non-toxic food-grade and industrial-grade inedible.

Paraffin wax Chinese name English name Chinese alias microcrystalline wax; white wax CAS No. 8002-74-2 No. EINECS 232-315-6 relative density of 0.88 to 0.915 Chemical formula C25H52

table of Contents

1 ingredient

2 Physical Properties

3 Chemical formula

4 Performance

? melting point

? oil content

? stability

Paraffin Category 5

? microcrystalline wax

? liquid paraffin

? polyethylene wax

? semi-refined paraffin wax

6 chlorinated paraffins

7 The main purpose

Edit component

paraffin

paraffin

Solid paraffin is a mixture of higher alkanes, the major component of the formula CnH2n + 2, where n = 17 ~ 35. The main component is a straight-chain alkanes, as well as alkanes and with long side with a small amount of individual branched-chain monocyclic cycloalkane; straight-chain alkanes mainly n-dodecane (C22H46) and n-octadecane (C28H58) .

Paraffin unusual chemical reagent, but it can burn. FCC reaction can occur in the industry.

Physical properties editor

Paraffin waxes, also known as polymorphs, usually white, odorless waxy solid, at 47 ° C-64 ° C to melt, a density of about 0.9g / cm3, was dissolved in gasoline, carbon disulfide, xylene, diethyl ether, benzene, chloroform, four carbon tetrachloride, naphtha and other similar non-polar solvents, insoluble in water and methanol and other polar solvents. Pure paraffin wax is a good insulator, the resistivity of 1013-1017 ohm-m, are higher than most materials except some plastics (especially Teflon) outside. Paraffin is also a good heat storage material having a specific heat capacity 2.14-2.9J · g-1 · K-1, a heat of fusion 200-220J · g-1.

Edit the formula

C25H52

Performance Indicator Editor

Key performance indicators paraffin wax melting point, oil content and stability. [3]

Melting point

Paraffin is a mixture of hydrocarbons, and therefore it is not as strict as the melting point of the pure compound. The so-called paraffin melting point refers to the specified conditions, cooling molten paraffin sample, when the temperature of the cooling curve for the first time period of stagnation appears. All kinds of paraffin wax products are all required to have good heat resistance, ie without melting or softening deformation at a specific temperature. In accordance with the conditions of use, and the use of regional and seasonal differences in the use of the environment, it requires a series of commodity paraffin having different melting points.

The main factors affecting the melting point of the wax is chosen fractions of the severity of the raw material, the higher the heavier fraction from prolapse of the paraffin melting point. In addition, the oil content of the melting point of paraffin also greatly affected, paraffin oil, the more, the lower the melting point.

Oil content

Oil content refers to the amount of low-melting paraffin hydrocarbons contained. Paraffin oil content is too high will affect the color and storage stability, it will reduce the hardness. So coming out of the vacuum distillate oil paste wax, the need for oil removal by sweating method or the solvent method, in order to reduce the oil content. But most of the wax products need to contain a small amount of oil, which is to improve the gloss and the release properties of the article is advantageous.

Stability

Paraffin wax in the shape or coating process, a long period of hot melt state, and in contact with the air, if stability is not good, it is easy to oxidative deterioration, become darker in color, and even odor. In addition, when used in lower-light conditions paraffin will turn yellow. Therefore, the required paraffin has good thermal stability, oxidation stability and light stability.

The main factors affecting the stability of the wax is non-hydrocarbon compounds and they contain traces of polycyclic aromatic hydrocarbons. In order to improve the stability of paraffin wax, paraffin need to be refined in order to remove these impurities.

Paraffin taxonomy editor

Depending on the degree of processing refined, it can be divided into full-refined paraffin wax, semi-refined paraffin wax and crude paraffin three kinds. Also according to each type of wax melting point, generally every 2 ℃, divided into different varieties, such as 52,54,56,58 and other brands. Higher crude paraffin oil content, mainly used in the manufacture of matches, fibreboard, canvas canopies and so on.

Microcrystalline wax

Microcrystalline wax is mainly a text chain hydrocarbons, naphthenic, and some straight-chain hydrocarbons with a molecular weight range of about 500-1000. This is a relatively small crystals, soluble in non-polar solvents, insoluble in polar solvents.

Liquid paraffin

Many types of liquid paraffin, the lubricating effect is also different. In the extrusion process in good initial lubrication, thermal stability is also good. But compatibility is poor, the amount is too sticky products easy.

Polyethylene wax

(Referred ACPE)

It means a polyethylene wax having a molecular weight of 1500-25000 low molecular weight polyethylene or low-molecular weight partially oxidized polyethylene. Its granular white powder, and a milky white waxy lump. It has excellent fluidity, electrical properties, releasability.

Semi-refined paraffin wax

As a white granular solid, melting point with increasing the relative density increases. Product chemical stability, moderate oil content, with good moisture and insulation performance, good plasticity. Production of semi-refined paraffin wax candle flame concentrated, non-smoking, no tears. Used for making candles, crayons, wax paper, short-circuit and general telecommunications equipment and light industry, chemical raw materials.

Chlorinated paraffin edit

Chlorinated paraffin is golden yellow or amber viscous liquid, non-flammable, non-explosive, volatile minimal. Soluble in most organic solvents, insoluble in water and ethanol. Heated to above 120 ℃ gradually disassemble, can emit oxides of hydrogen chloride gas, iron, zinc and other metals will promote its decomposition. CPs for the auxiliary PVC plasticizers. Low volatile, non-flammable, odorless, non-toxic. This product is part of the main plasticizer replace, reduce product costs, and reduced flammability. Mainly used in PVC cable materials and plumbing, flooring materials, films, leather and so on.

The main purpose of editing

paraffin

paraffin

Because crude paraffin oil content more, mainly used in the manufacture of matches, fibreboard, canvas canopies and so on. After adding polyolefin wax additive having a melting point higher adhesion and increased flexibility, it is widely used in moisture-proof, water-proof wrapping paper, cardboard, textiles, and certain surface coating candle production.

Allows the production of a rear paper dipped in paraffin wax paper all kinds of good water resistance, can be used for food, medicine and other packaging, metal rust and printing industry; paraffin after adding cotton yarn, can make textiles soft, smooth, yet flexible ; paraffin may also be prepared detergents, emulsifiers, dispersing agents, plasticizers, grease and the like.

Fully refined and semi-refined paraffin wax is widely used, mainly used as food, oral medicines and certain commodities (such as wax paper, crayons, candles, carbon) components and packaging materials, containers of baking coating material for fresh fruit [4], electrical components, insulation, aging resistance and improve rubber increased flexibility [5]. It can also be used for synthesis of fatty acid oxidation.

GB 2760-96 regulations allow for the gum base agent, limited 50.0g / kg. Foreign rice is also used in paper production release, the amount of 6g / kg. In addition, it is widely used in moisture-proof, anti-oil, anti-sticking and food packaging materials. For food chewing gum, bubble gum and drug positive component and a heat carrier oil, gold, stripping, tableting, lighting and other direct contact with food and drugs with wax (from petroleum or shale oil fraction containing wax by cold pressing, etc. The method is made). [6]statement

This entry may involve the drug content, on-line any recommendations on the use of drugs can not substitute medical advice.

Paraffin from certain petroleum, shale oil or other bituminous mineral oil distillate extracted from a hydrocarbon mixture, the main ingredient is solid paraffin, odorless and tasteless, white or light yellow translucent solid. Paraffin is amorphous, but with significant crystalline structure. Another artificial wax.

Paraffin is a petroleum processing products, is a mineral wax, petroleum wax is also a [1]. It is distilled from crude oil fractions by solvent refining, solvent dewaxing or wax by freezing crystallization, squeezing dewaxing prepared paste wax, and then by solvent removal oil refining flake or needle-like crystals. The system for higher fatty acids, higher alcohols, matches, candles, water, ointments, electrical insulating materials, etc. [2].

Min food grade paraffin (food grade and packaging level, preferably the former), and industrial-grade, non-toxic food-grade and industrial-grade inedible.

Paraffin wax Chinese name English name Chinese alias microcrystalline wax; white wax CAS No. 8002-74-2 No. EINECS 232-315-6 relative density of 0.88 to 0.915 Chemical formula C25H52

table of Contents

1 ingredient

2 Physical Properties

3 Chemical formula

4 Performance

? melting point

? oil content

? stability

Paraffin Category 5

? microcrystalline wax

? liquid paraffin

? polyethylene wax

? semi-refined paraffin wax

6 chlorinated paraffins

7 The main purpose

Edit component

paraffin

paraffin

Solid paraffin is a mixture of higher alkanes, the major component of the formula CnH2n + 2, where n = 17 ~ 35. The main component is a straight-chain alkanes, as well as alkanes and with long side with a small amount of individual branched-chain monocyclic cycloalkane; straight-chain alkanes mainly n-dodecane (C22H46) and n-octadecane (C28H58) .

Paraffin unusual chemical reagent, but it can burn. FCC reaction can occur in the industry.

Physical properties editor

Paraffin waxes, also known as polymorphs, usually white, odorless waxy solid, at 47 ° C-64 ° C to melt, a density of about 0.9g / cm3, was dissolved in gasoline, carbon disulfide, xylene, diethyl ether, benzene, chloroform, four carbon tetrachloride, naphtha and other similar non-polar solvents, insoluble in water and methanol and other polar solvents. Pure paraffin wax is a good insulator, the resistivity of 1013-1017 ohm-m, are higher than most materials except some plastics (especially Teflon) outside. Paraffin is also a good heat storage material having a specific heat capacity 2.14-2.9J · g-1 · K-1, a heat of fusion 200-220J · g-1.

Edit the formula

C25H52

Performance Indicator Editor

Key performance indicators paraffin wax melting point, oil content and stability. [3]

Melting point

Paraffin is a mixture of hydrocarbons, and therefore it is not as strict as the melting point of the pure compound. The so-called paraffin melting point refers to the specified conditions, cooling molten paraffin sample, when the temperature of the cooling curve for the first time period of stagnation appears. All kinds of paraffin wax products are all required to have good heat resistance, ie without melting or softening deformation at a specific temperature. In accordance with the conditions of use, and the use of regional and seasonal differences in the use of the environment, it requires a series of commodity paraffin having different melting points.

The main factors affecting the melting point of the wax is chosen fractions of the severity of the raw material, the higher the heavier fraction from prolapse of the paraffin melting point. In addition, the oil content of the melting point of paraffin also greatly affected, paraffin oil, the more, the lower the melting point.

Oil content

Oil content refers to the amount of low-melting paraffin hydrocarbons contained. Paraffin oil content is too high will affect the color and storage stability, it will reduce the hardness. So coming out of the vacuum distillate oil paste wax, the need for oil removal by sweating method or the solvent method, in order to reduce the oil content. But most of the wax products need to contain a small amount of oil, which is to improve the gloss and the release properties of the article is advantageous.

Stability

Paraffin wax in the shape or coating process, a long period of hot melt state, and in contact with the air, if stability is not good, it is easy to oxidative deterioration, become darker in color, and even odor. In addition, when used in lower-light conditions paraffin will turn yellow. Therefore, the required paraffin has good thermal stability, oxidation stability and light stability.

The main factors affecting the stability of the wax is non-hydrocarbon compounds and they contain traces of polycyclic aromatic hydrocarbons. In order to improve the stability of paraffin wax, paraffin need to be refined in order to remove these impurities.

Paraffin taxonomy editor

Depending on the degree of processing refined, it can be divided into full-refined paraffin wax, semi-refined paraffin wax and crude paraffin three kinds. Also according to each type of wax melting point, generally every 2 ℃, divided into different varieties, such as 52,54,56,58 and other brands. Higher crude paraffin oil content, mainly used in the manufacture of matches, fibreboard, canvas canopies and so on.

Microcrystalline wax

Microcrystalline wax is mainly a text chain hydrocarbons, naphthenic, and some straight-chain hydrocarbons with a molecular weight range of about 500-1000. This is a relatively small crystals, soluble in non-polar solvents, insoluble in polar solvents.

Liquid paraffin

Many types of liquid paraffin, the lubricating effect is also different. In the extrusion process in good initial lubrication, thermal stability is also good. But compatibility is poor, the amount is too sticky products easy.

Polyethylene wax

(Referred ACPE)

It means a polyethylene wax having a molecular weight of 1500-25000 low molecular weight polyethylene or low-molecular weight partially oxidized polyethylene. Its granular white powder, and a milky white waxy lump. It has excellent fluidity, electrical properties, releasability.

Semi-refined paraffin wax

As a white granular solid, melting point with increasing the relative density increases. Product chemical stability, moderate oil content, with good moisture and insulation performance, good plasticity. Production of semi-refined paraffin wax candle flame concentrated, non-smoking, no tears. Used for making candles, crayons, wax paper, short-circuit and general telecommunications equipment and light industry, chemical raw materials.

Chlorinated paraffin edit

Chlorinated paraffin is golden yellow or amber viscous liquid, non-flammable, non-explosive, volatile minimal. Soluble in most organic solvents, insoluble in water and ethanol. Heated to above 120 ℃ gradually disassemble, can emit oxides of hydrogen chloride gas, iron, zinc and other metals will promote its decomposition. CPs for the auxiliary PVC plasticizers. Low volatile, non-flammable, odorless, non-toxic. This product is part of the main plasticizer replace, reduce product costs, and reduced flammability. Mainly used in PVC cable materials and plumbing, flooring materials, films, leather and so on.

The main purpose of editing

paraffin

paraffin

Because crude paraffin oil content more, mainly used in the manufacture of matches, fibreboard, canvas canopies and so on. After adding polyolefin wax additive having a melting point higher adhesion and increased flexibility, it is widely used in moisture-proof, water-proof wrapping paper, cardboard, textiles, and certain surface coating candle production.

Allows the production of a rear paper dipped in paraffin wax paper all kinds of good water resistance, can be used for food, medicine and other packaging, metal rust and printing industry; paraffin after adding cotton yarn, can make textiles soft, smooth, yet flexible ; paraffin may also be prepared detergents, emulsifiers, dispersing agents, plasticizers, grease and the like.

Fully refined and semi-refined paraffin wax is widely used, mainly used as food, oral medicines and certain commodities (such as wax paper, crayons, candles, carbon) components and packaging materials, containers of baking coating material for fresh fruit [4], electrical components, insulation, aging resistance and improve rubber increased flexibility [5]. It can also be used for synthesis of fatty acid oxidation.

GB 2760-96 regulations allow for the gum base agent, limited 50.0g / kg. Foreign rice is also used in paper production release, the amount of 6g / kg. In addition, it is widely used in moisture-proof, anti-oil, anti-sticking and food packaging materials. For food chewing gum, bubble gum and drug positive component and a heat carrier oil, gold, stripping, tableting, lighting and other direct contact with food and drugs with wax (from petroleum or shale oil fraction containing wax by cold pressing, etc. The method is made). [6]