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The reaction between hydrogen sulphide and nitrogen dioxide

✍ Scribed by P. Frost; J.H. Thomas

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
260 KB
Volume
25
Category
Article
ISSN
0010-2180

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✦ Synopsis

The reaction between HsS and NO 2 has been studied over the temperature range 448 Β°K to 528 Β°K. When PNO2 is greater than 3PH2 S the reaction has the stoichiometry: H2S + 3NO s ~H20 + SO2 + 3NO. At lower NO2/H2S ratios, sulphur is a product. In a Pyrex reaction vessel, the reaction is heterogenerous and -dPNos/dt = 10 TM + 0.05 exp (-53.0 + 0.4/RT )

[NO2]0.95 +-0.1 [H2S ] 1.28 +0.09 mol cm -3 sec "1.

It is proposed that the initial reaction is between NO2 and adsorbed HsS, i.e., H2S + wall ~ HsS(ads ), H2S(ads )+NO 2 ~ HS+HNO 2.

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