Colorimetric gas measuring device for chlorosilanes

Details Colorimetric gas measuring device for chlorosilanes Colorimetric gas measuring device for chlorosilanes

1988-09-01

1990-04-17

Nucker, Christine M.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 59, 422 60, 422 86, 422 88, G01T 148

Patent

active

049178636

ABSTRACT:
The invention relates to a colorimetric gas measuring device having a porous substrate accessible to the air sample to be investigated. The substrate includes a conversion zone which converts a component to be detected into a substance which leads to a coloration of an indicator in a detection zone. The gas measuring device makes possible a simple and inexpensive quantitative detection of chlorosilanes. For this purpose, the conversion zone includes silica gel and the detection zone includes a carrier impregnated with an acid indicator.

REFERENCES:
patent: 4259287 (1981-03-01), Leichnitz
patent: 4436823 (1984-03-01), Blumcke et al.
patent: 4478792 (1984-10-01), McConnaughey et al.
patent: 4692309 (1987-09-01), Pannwitz
patent: 4765962 (1988-08-01), Heim
patent: 4783316 (1988-11-01), Pannwitz

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