All paddocks, pastures and stalls have fresh water cleaned daily and all horses are checked regularly.Otterson Lake Farm offers unlimited trail access at the doorstep of Algonquin Park. This solution is abbreviated into the chemical formula Sn (SO4)2*H2SO4 or H2O12S3Sn. You can help Wikipedia by expanding it. Formula: /**/. It is a volatile white solid, subliming at 40 C under a vacuum.