Tongyi 60 fully refined paraffin

Paraffin wax is a mixture of hydrocarbons, so it does not have the strict melting point of pure compounds. The so-called melting point of paraffin refers to the temperature at which the cooling curve of a melted paraffin sample appears for the first time under specified conditions. All kinds of wax products are required to have good temperature resistance to paraffin wax, that is, do not melt or soften deformation at a specific temperature. A series of different melting points of paraffin wax are required according to the different conditions of use, the regions and seasons of use and the environment of use.

The main factor affecting the melting point of paraffin is the weight of the selected raw material fraction. The melting point of paraffin removed from the heavier fraction is higher. In addition, the oil content of paraffin also has a great impact on the melting point, the more oil in paraffin, the lower the melting point.

Oil content refers to the amount of low melting hydrocarbons contained in paraffin. High oil content will affect the color and storage stability of paraffin wax, but also reduce its hardness. Therefore, the oil containing wax extract from the reduced pressure fraction needs to be deoiled by sweating method 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 luster and demoulding performance of products.