between the α-hydroxyl and the carboxylate group, making the latter less capable of strongly attracting its proton. lactic acid is chiral and has two optical isomers. one is known as l-(+)-lactic acid or (s)-lactic acid and the other, its mirror image, is d-(−)-lactic acid or (r)-lactic acid. in animals...
also consult the applicable msds sheet. risk factors toxic by inhalation; tlv: ppm in air. corrosive and strong irritant to tissue. flammable, dangerous fire risk, explosive limits in air - %. butanone is an irritant, causing irritation to the eyes and nose of humans, but serious health effects in animals...