Aurora, N.C. — Potash Corp. of Saskatchewan Inc. reported two chemical spills at its phosphate facility here Feb. 11-12. There were no injuries, and both were contained. The Feb. 11 spill was some 3,412 gallons of methyl isobutyl ketone. On Feb. 12, 89,760 gallons of phosphoric acid spilled. Both were reported to the National Response Center.