6257. Montan Wax

Nomenclature

CAS number: 8002-53-7
Lignite wax.

Description and references

Obtained by extraction from lignite. Asphalt and resin content and physical properties vary with source of lignite. Brief review: C. S. Letcher in Kirk-Othmer Encyclopedia of Chemical Technology vol. 24 (Wiley-Interscience, New York, 3rd ed., 1984) pp 471-472.

Properties

Dark-brown lumps; white or nearly white when bleached. mp 80-86°. Saponification number 88-112. Insol in water. Sol in benzene, chloroform, carbon tetrachloride, hot petr ether; incompletely sol in hot ether or boiling alcohol.

Use

Electric cable insulators; in polishes instead of carnauba wax; manuf candles, waterproof paints and varnishes.