Colorimetric testing and measuring device for hydride gas

Details Colorimetric testing and measuring device for hydride gas Colorimetric testing and measuring device for hydride gas

1990-09-19

1991-12-24

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 86, 422 87, 436167, 436169, G01N 3000

Patent

active

050750810

ABSTRACT:
The invention is directed to a testing and measuring device for colorimetrically detecting hydride gases on a carrier which is impregnated with a solution of glycol and with a salt as an indicator. This measuring device is improved in that its long-term stability is increased and the detection of especially the smallest quantities is made possible by a clearly recognizable color change. For this purpose, only a salt, palladium chloride or palladium tetramine chloride, is present in the solution in addition to the glycol.

REFERENCES:
patent: 4420567 (1983-12-01), McMahon et al.

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