127-95-7 EINECS 204-873-0 Essential salt of lemon Ethanedioic acid, monopotassium salt HSDB 671 Kleesalz [German] Monopotassium oxalate Oxalic acid, monopotassium salt POTASSIUM ACID OXALATE Potassium binoxalate Potassium hydrogen oxalate Potassium oxalate (KHC2O4) Potassium quadroxalate Potassium salt of sorrel Sal Acetosella Salt of sorrel Sorrel salt