sule 6619024 M I N E R A L S P I R I T S 663 Revision 10 2025 Mineral Spirits 663 is a medium-boiling aliphatic solvent consisting primarily of C9-C12 saturated hydrocarbons withSup.R. 66.01 through 66.09 shall apply in an adult guardianship case where the division of a court of common pleas appoints a guardian to protect and control a ward pursuant to R.C.