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Updated: May 21, 2025
A weak solution of the hydriodate of potash, in which a small portion of iodine is dissolved, is now passed over the plate with a wide camel's hair brush. The silver is thus converted, over its surface, into an ioduret of silver; and in this state it is exposed to light, which blackens it.
"The tests of aconitine are not sufficiently well known to permit of the isolation of it in a body. Bouchardat tried ioduret of potassium, but his experiment was not successful." "The deuce!" said M. Lecoq. "That's annoying." The doctor smiled benignly. "Reassure yourself," said he. "No such process was in existence so I invented one." "Ah," cried Plantat. "Your sensitive paper!" "Precisely."
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