Petrolatum

CAS：8009-03-8

Molecular formula：C15H15N

Molecular weight：209.2863

Structure：

Physicochemical properties: white or yellowish homogeneous paste, almost odorless and tasteless. It is a mixture of liquid and solid paraffin hydrocarbons. The relative density is 0.815 ~ 0.830, the viscosity is 0.01 ~ 0.02pa · s (100 ℃), the flash point is greater than 190 ℃ (open), and the drop point is about 37 ~ 54 ℃. Soluble in ether, petroleum ether, various fatty oils, benzene, carbon disulfide, chloroform and turpentine, insoluble in ethanol and almost insoluble in water. Heated into a transparent liquid, it can fluoresce in the dark after ultraviolet irradiation.

Usage: Vaseline is a refined stone oil mixed with residue wax paste and lubricating oil. It is an important lubricant for medicine, daily chemical industry, fine chemical raw materials and precision instruments. China's Vaseline products mainly include ordinary Vaseline, industrial vaseline and pharmaceutical Vaseline. Ordinary Vaseline is suitable for preparing various ointments and softeners for dark rubber products; Industrial Vaseline can be used for rust prevention of metal products and general mechanical parts, lubrication of light load machinery, leather wetting agent and rubber softener. China's Vaseline products are mainly concentrated in pharmaceutical Vaseline, which is divided into pharmaceutical white vaseline and pharmaceutical yellow Vaseline. Pharmaceutical Vaseline is mainly used to prepare ointment, skin protective ointment and cosmetic raw materials. It can also be used as antirust and lubricating materials for medical devices and precision instruments.