Page 157 - Illustrated Pocket Dictionary of Chromatography

PYRIDINE 157

these impurities gas purifier (or scrubber) columns are placed in line
after the gas source and before entering the instrument.
Note that the purifiers should be mounted vertically so that as the
column material settles no voids are created.

These three purifiers are placed after the gas supply tank to remove oxygen, hydro-
carbons, and water (right to left). Inlet to this manifold from the gas tank is at the
right.

pyridine Molecular weight: 79.1; boiling point: 115.3°C; refrac-
tive index (20°C): 1.5102; density (20°C): 0.98g/mL; viscosity (20°C):
o
0.95cP; UV cutoff: 330nm; eluotropic strength (e ): on alumina—
0.71; polarity index (P¢): 5.3; Hildebrand solubility parameter (d): 10.7.
Miscible with water. Flammable liquid with a disagreeable odor.