The Lapeer Police Department says the chemical was identified as sodium hydroxide, which is used in a variety of household cleaning products.
Police say a 1½-year-old boy got the substance on his legs while going down the slide at Cramton Park in downtown Lapeer on Aug. 2, and a 14-year-old girl who went to help him also got some on her legs.
Police say both went to a local hospital, and the toddler was transferred to the burn unit at Hurley Medical Center in Flint.
