Paraffin wax is a kind of petroleum processing products, a kind of mineral wax, and a kind of petroleum wax. It is a flaky or needle-like crystal obtained from the lubricating oil fraction obtained by distillation of crude oil through solvent refining, solvent dewaxing or wax freezing crystallization, pressing and dewaxing to obtain wax paste, and then solvent deoiling and refining.
It is used to make higher fatty acids, higher alcohols, matches, candles, water repellants, ointments, electrical insulating materials, etc. Paraffin is divided into food grade and industrial grade, food grade is non-toxic, and industrial grade is not edible.
Physical and chemical properties: colorless or white waxy substance, actually odorless, tasteless, with a greasy feeling, very hard at room temperature. The melting point varies according to the manufacturing method.
The fine microcrystalline paraffin is 48-93 degrees, flammable, insoluble in water, soluble in aromatic hydrocarbons, slightly soluble in ketones, ethers and alcohols. It is stable in nature, generally does not react with strong acids, strong bases, oxidants, and reducing agents, and can gradually turn yellow under ultraviolet light.
Food paraffin is suitable for use in mold release, tableting, polishing, etc. of food and pharmaceutical components that directly contact food and pharmaceuticals, as well as food additives. Paraffin wax for food packaging is suitable for dipping wax for containers and packaging materials in contact with food, as well as wax for sealing and coating drugs.
Mainly used as components and packaging materials for food, oral products and certain commodities (such as wax paper, crayons, candles, carbon paper), coating materials for baking containers, for fruit preservation, electrical components insulation, to improve rubber aging resistance and Increase flexibility, etc. It can also be used for oxidation to generate synthetic fatty acids.
It is also used for anti-sticking in the production of glutinous rice paper abroad, and the dosage is 6g/kg. It is widely used in moisture-proof, anti-stick and oil-proof of food packaging materials.
It is suitable for food chewing gum, bubble gum and other components, as well as heat carrier, mold release, tableting, polishing and other direct contact with food and materials.
The product is made from the waxy fraction of petroleum or shale oil by cold pressing and other methods.
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Test items
Melting point: Paraffin is a mixture of hydrocarbons, so it does not have a strict melting point like pure compounds. The main factor affecting the melting point of paraffin wax is the weight of the selected raw material fraction, and the melting point of the paraffin wax removed 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 the paraffin wax, the lower the melting point.
Oil content: refers to the amount of low melting point hydrocarbons contained in paraffin. Excessive oil content will affect the color and storage stability of paraffin wax, and also reduce its hardness. Therefore, the oil-containing wax paste removed from the vacuum fraction needs to be deoiled by sweating or solvent method to reduce its oil content. However, most paraffin products need to contain a small amount of oil, which is beneficial to improve the gloss and mold release properties of the products.
Stability: The main factor affecting the stability of paraffin wax is the trace amount of non-hydrocarbon compounds and condensed aromatic hydrocarbons it contains. In order to improve the stability of paraffin, it is necessary to carry out deep refining of paraffin to remove these impurities.
Test items: melting point, oil content, non-volatile matter, transparency, color, density, gloss, thickness, hardness, elasticity, adhesion, chemical solvent resistance, medium resistance, weather resistance, temperature change resistance, resistance to Impact, scratch resistance, abrasion resistance, etc.
Analysis items: component analysis and detection, foreign matter and impurity content analysis, formula analysis, elemental analysis, component identification, purity analysis, moisture analysis, etc.
About the waxing process of candle machine
1. Follow wax: Add some water to the pot, put the solid paraffin into the pot (can melt the paraffin into wax water), melt it into liquid wax water until the pot is added to the configuration pigment color.
Soy Wax is a vegan wax made from the complete oiling of soybeans. Like honey, it is considered a natural wax, and 100% pure soy wax is often used in containers of soy wax.
Paraffin wax is a hydrocarbon mixture extracted from some distillates of petroleum, shale oil or other bituminous mineral oils. The main component is solid alkanes, odorless and tasteless, and it is a white or light yellow translucent solid.
Paraffin is a purified mixture of solid saturated hydrocarbons. Paraffin wax is a flaky or needle-like crystal obtained from lubricating oil fractions obtained by distillation of crude oil through solvent refining, wax freezing crystallization, and press dewaxing to obtain wax paste, and then solvent deoiling and hydrofining.
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refined paraffin wax candle: advantages, disadvantages and differences of other wax candle
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