Patent ID: 6200494
Filing Date: 2001-03-13
Classification: B01J,H01J,Y02E

Abstract:
A getter composition comprising:a cobalt oxide (Co.sub.3 O.sub.4), wherein the cobalt is present at the same time under the oxidation state II and oxidation state III, mixed with palladium forming a mixture, wherein palladium is approximately 2% wt/vt of said mixture;said mixture combined with a moisture sorbing material selected from the group of either calcium oxide, strontium oxide, barium oxide or phosphorous oxide, having a H.sub.2 O vapor pressure lower than 1 Pa at room temperature and a particle size between 50 and 500 .mu.m; andat least one sorbed gas compound sorbed by said mixture at a temperature of less than 150.degree. C., the sorbed gas compound being selected from the group consisting of hydrocarbons, halogenated hydrocarbons, and partially halogenated hydrocarbons.