| 摘要 |
Process for producing substantially separated 5-chloro-2-methyl-3-isothiazolone (CMI) and 2-methyl-3-isothiazolone (MI) from a mixture of their hydrochloride salts, or in a special mixture having a higher ratio of CMI to MI, comprising heating a mixture of CMI?HCl and MI?HCl for a period of time necessary to fully dissociate said CMI?HCl and form substantially pure CMI, but insufficient to fully dissociate said MI?HCl.
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