Hydrogen sulfide sensor | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-10-04

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Hydrogen_sulfide_sensor


00:00:57 1 Purification of hydrogen sulfide gas
00:01:46 2 Drying of gas
00:02:02 3 Applications
00:02:48 4 Research
00:03:05 5 See also



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SUMMARY
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A hydrogen sulfide sensor or H2S sensor is a gas sensor for the measurement of hydrogen sulfide.In a laboratory, hydrogen sulfide is prepared by the action of dilute sulfuric acid on iron sulfide.

FeS(s)+H2SO4(aq) → FeSO4(aq) + H2S(g)Concentrated sulfuric acid and nitric acid cannot be used for this process as they oxidize hydrogen sulfide to sulfur. A Woulf's bottle is fitted with a thistle funnel and a delivery tube. Diluted H2SO4 is run down the funnel so as to cover the iron sulfide placed at bottom of the bottle. When iron sulfide reacts with diluted sulfuric acid, hydrogen sulfide is formed which is collected in the gas jar by upward displacement of air.