Ma nooc ka mid ah acid organic, waa wax soo saarka dheef-shiid kiimikaad ee noolaha, acid binary, si ballaaran loo qaybiyey dhirta, xayawaanka iyo fangaska, iyo in noolaha kala duwan ciyaaro hawlo kala duwan.Waxaa la ogaaday in oxalic acid ay qani ku tahay in ka badan 100 nooc oo dhir ah, gaar ahaan isbinaajka, amaranth, dabocase, purslane, tarugu, baradhada macaan iyo rhubarb.Sababtoo ah oxalic acid waxay yarayn kartaa bioavailability ee walxaha macdanta, waxaa loo tixgeliyaa inay tahay antagonist nuugista iyo isticmaalka walxaha macdanta.Anhydride keedu waa carbon sequioxide.