氟化铒1000元/kgCas号13760-83-3分子式ErF3分子量224.26别名erbium(iii)fluoride外观AppearancepinkpowderICPConfirmsErbiumComponent痕量稀土元素TraceRareEarthAnalysis≤200.0ppm纯度Purity≥99.99%PurityBasedOnRareEarthAnalysis)