Indicator device for the quantitative determination of metal cya

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample

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23232R, 422 60, 252408, G01N 3122

Patent

active

042711258

ABSTRACT:
An indicator device for the quantitative determination of aerosol-type metal cyanides, including a tube provided with a bore extending therethrough, a front layer of a substrate material impregnated with sulfuric acid or phosphoric acid and a following indicating layer of a substrate impregnated with mercuric chloride and methyl red.

REFERENCES:
patent: 3223487 (1965-12-01), Grosskoff
Testing Tube Pocketbook, Dragerwerk AG, Reprint 2340, p. 46, 5-1976.
Gen. Chemistry; L. Pauling; 1958, p. 382, 2nd ed.

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