Raschig ring
(also Raschig's ring) Chemistry
noun
A small cylindrical ring usually made of glass, metal, or ceramic material, and used in large numbers as packing in towers and columns for fractionation, solvent extraction, etc.
- The use of such rings was introduced by Raschig..
Origin
1920s; earliest use found in Chemical Abstracts.
- cooler bag
- Cooley's anaemia
- Coolgardie
- Coolgardie safe
- cool-headed
- cool-headedness
- cool-hearted
- coolhouse
- cool hunter
- cool hunting
- coolibah
- Coolidge, Calvin
- Coolidge tube
- coolie
- Coolie Christmas
- coolie hat
- coolieism
- coolie line
- cooling board
- cooling card
- cooling center
- cooling coil
- cooling curve
- cooling fin
- cooling-off period