Looking for any experiment particulars for creating wackenroder solution. Polythionics. Following ASTM G35 method 1, H2S into sulfurous?

01 January 2018 1 2K Report

First run of generating the polythionics APPEARED to work, got a turbid white solution with smell of sulfur but 304SS coupon did not crack. I'm looking for particular details about the reagent or setup that will lead to successful test on sensitized coupon of 304.

Antonio OfExova

So, the original 1888 text says the H2S bubbling needs to be repeated daily for about 2 weeks. afterwhich, the temp is brought to room temp and the sulfurous odor returns, and H2S is bubbled again until the sulfur dioxide smell goes away. ASTM says you "may" have to repeat the H2S bubbling, original text says you will repeat for an extended period.

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