Apparatus and process for measuring the amount of air in gaseous mixtures of carbon dioxide and air

Abstract

Abstract THE AMOUNT OF AIR IN A GASEOUS MIXTURE OF CARBON DIOXIDE AND AIR IS DETERMINED BY FILLING A CALIBRATED VESSEL OR BURETTE WITH A POTASSIUM HYDROXIDE SOLUTION AND SIMILARLY FILLING A RESERVOIR OF KNOWN VOLUME WITH WATER. THEN THE GASEOUS MIXTURE IS INTRODUCED INTO THE RESERVOIR, DISPLACING THE WATER THEREFROM, UNTIL THE MIXTURE OCCUPIES THE KNOWN VOLUME OF THE RESERVOIR. THE WATER SO DISPLACED, HOWEVER, MAINTAINS THE GASSEOUS MIXTURE UNDER PRESSURE AND WHEN A VALVE WHICH IS DISPOSED BETWEEN THE RESERVOIR AND THE VESSEL IS TURNED, THE DISPLACE WATER FORCES THE KNOWN VOLUME OF THE GASEOUS MIXTURE INTO THE VESSEL, CAUSING THE MIXTURE TO BUBBLE INTO THE POTASSIUM HYDROXIDE SOLUTION THEREIN. AS THE GASEOUS MIXTURE BUBBLES INTO THE POTASSIUM HYDROXIDE SOLUTION, THE CARBON DIOXIDE IS ABSORBED WHILE THE AIR PASSES COMPLETELY THROUGH THE SOLUTION AND COLLECTS ABOVE IT IN THE UPPER END OF THE CALIBRATED VESSEL. BY COMPARING THE VOLUME OF AIR COLLECTED IN THE VESSEL WITH THE VOLUME OF THE GASEOUS MIXTURE INITIALLY IN THE RESERVOIR, IT IS POSSIBLE TO ASCERTAIN THE PURITY OF THE CARBON DIOXIDE MIXTURE.

Inventors

• 👤 Martin C Watz

Bibliographic Details