Non-toxic chemical oxygen generating compositions

Details Non-toxic chemical oxygen generating compositions Non-toxic chemical oxygen generating compositions

1992-03-13

1994-03-29

Lovering, Richard D.

Compositions

Oxidative bleachant, oxidant containing, or generative

Free halogen or oxy-halogen acid type

2521871, C01B 1114, A62B 2100

Patent

active

052981878

ABSTRACT:
An oxygen-generating candle composition is disclosed of the type that includes an amount of an alkali metal chlorate or perchlorate oxygen source and which upon initiation and decomposition yields oxygen and residual chlorine, wherein the improvement comprises a non-toxic additive in the candle composition for suppression of the residual chlorine and to enhance uniform oxygen generation and evolution. The additive is selected from the group consisting of from about 0.05% to about 10% by weight of lithium aluminate, metaborate, tetraborate, phosphate or pyrophosphate, metasilicate or orthsilicate, or carbonate, calcium phosphate or pyrophosphate, strontium carbonate or phosphate, or sodium metasilicate or orthosilicate. A metal oxide catalyst, a metal powder fuel, and a binder or filler are also included in the composition.

REFERENCES:
patent: 1027333 (1912-05-01), Hershkowitsch
patent: 2004243 (1935-06-01), Hloch
patent: 3293187 (1966-12-01), Markowitz
patent: 3405068 (1968-10-01), Hiltz
patent: 3702305 (1972-11-01), Thompson
patent: 3736104 (1973-05-01), Churchill et al.
patent: 5049306 (1991-09-01), Greer
patent: 5198147 (1993-03-01), Zhang et al.

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