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What chemical expirements did James Watt study?
Watt was very interested in chemistry.
In late 1786, while in Paris, he witnessed an experiment by Berthollet in which he reacted hydrochloric acid with manganese dioxide.
was there a significant discovery when Berthollet reacted Hydrocloric acid with manganese dioxide?
He had already found that an aqueous solution of chlorine could bleach textiles, and had published his findings, which aroused great interest among many potential rivals.
How did James Watt expand upon the discovery of the bleach solution?
he began experiments along these lines with hopes of finding a commercially viable process.
He discovered that a mixture of salt, manganese dioxide and sulphuric acid could produce chlorine.

Question: Did James Watt go on to discover other important chemical solutions?
Self-contained rewrite: Did James Watt go on to discover other important chemical solutions besides the bleach solution?