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Addition of hydrogen sulfide or sulfide salts to a solution containing a lead salt, such as PbCl₂, gives a black precipitate of lead sulfide.
: Pb²⁺ + H₂S -> PbS? + 2 H⁺

This reaction is used in qualitative inorganic analysis. The presence of hydrogen sulfide or sulfide ions may be tested using "lead acetate paper."

Like the related materials PbSe

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