Title: Ceresin
CAS Registry Number: 8001-75-0
Additional Names: Purified ozokerite; earth wax; mineral wax; cerosin; cerin
Literature References: A mixture of hydrocarbons of complex composition purified by treatment with concd H2SO4 and filtration through bone-black. Found in Ukraine, Lake Baikal, also in Utah, Texas.
Properties: White or yellow, tasteless, waxy cakes. The white is odorless, the yellow has a slight odor. Fracture is very much like that of white wax. d 0.91-0.92. mp 61-78°. It is very stable toward oxidizing agents. Insol in water; sol in 30 parts abs alcohol; sol in benzene, chloroform, petr ether, hot oils.
Melting point: mp 61-78°
Density: d 0.91-0.92
Use: Substitute for beeswax; for making candles, wax figures; for waxed paper and cloth; in polishes, electrical insulators; waterproofing fabrics; for bottles for hydrofluoric acid; in dentistry for impression and inlay waxes and modeling compounds.
Ceric Fluoride Ceric Oxide Ceric Sulfate Cerium(IV) Ammonium Nitrate Ceronapril

Ceresin (also cerin, cerasin, cerosin, ceresin wax or ceresine) is a wax derived from ozokerite by a purifying process.

The purifying process of the ozokerite commonly comprises a treatment with heat and sulfuric acid, but other processes are also in use.

Uses include:

  • An alternative to beeswax in ointments
  • (Historic) Laboratory-supply bottles for small amounts of hydrofluoric acid, which were made of ceresin wax; this was before polyethylene became commonplace.