... province Samarium oxide Sm203specification1.common class 99%,99.5%,99.9%,99.95%,2.high-purity class 99.99%,99.995%,99.999%,3.NM class we can ... weave,metal bucket,paper drum or plascit drum., characterlwhite amorphous powder. Density 8.3477.24g/cm3, melting point 2262°C,,solubling iin ...