Reactive gas generator

Details Reactive gas generator Reactive gas generator

1978-06-08

1980-09-23

Serwin, R. E.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

23230PC, 23232R, 734215R, 422129, 422130, G01N 122, G01N 126

Patent

active

042242797

ABSTRACT:
A dilute mixture of a large organic parent compound in an inert diluent is formed using a specially designed diffusion cell to control the amount of parent compound that is taken up by the diluent gas. The dilute mixture flows through a hot pyrolyzing tube where the parent compound is decomposed solely and totally by a gas phase unimolecular reaction into equimolar amounts of reactive gas and a stable reaction product. The method produces an internal standard for determining the concentration of the reactive gas since the stoichiometry of the reaction requires that the concentration of the reactive gas be equal to the concentration of the other reaction product, which can be easily calibrated by standard methods.

REFERENCES:
patent: 3403978 (1968-10-01), Favre
patent: 3518059 (1970-06-01), Levy
patent: 3740195 (1973-06-01), Leitzau
patent: 3847546 (1974-11-01), Paul
patent: 4087249 (1978-05-01), Okumoto et al.
Tsang et al., "A Simple Technique for the Generation of Dilute Mixtures of ollutant Gases", Journal of Research, N.B.S., A. Physics & Chem. vol. 78A, No. 2, Mar.-Apr. 1974.

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