氧化镨(III)1500元/kgCas号12036-32-7分子式Pr2O3分子量329.81外观AppearancelightgreentogreenpowdersEDTA滴定ComplexometricEDTA(%Pr)84.2-86.7%ICP:ConfirmsPraseodymiumComponentConfirmed稀土元素测定TraceRareEarthAnalysis≤2000.0ppm纯度Puritybasedonrareearthanalysis≥99.9%)