Excerpt from The Journal of the Chemical Society of London, 1862, Vol. 15
Some of these salts are uncrystallizable, while others are easily obtained in crystals.
The chloride, bromide, and iodide are amorphous, of a resinous character, and unfit for analysis.
The oxalate I obtained by neutralizing the aqueous solution of the base with oxalic acid and evaporating. The crystals were of acicular form, and difficult to obtain.
For additional corroboration of the formula of sparteine, I have examined several of its double-salts.
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