oxalic acid manufacturer: 1: legalized by kosher and ISO 9001:2000 ; 2: the price is the best competitve in china ; oxalic acid UsesAs purifying intermediate in pharmacy, precipitator in rare earths processing, and fiber bleacher, removing rust ItemIndex valueOxalic Acid ≥99.6%Ash ≤0.02%Heavy Metal ,(as Pb),%,≤0.001%Iron,(as Fe),%,≤0.002%Chloride,(as CL-1),%,≤0.001% oxalic acid