Cheap And Discounts La2O3 Lanthanum Oxide High Purity Powder 99.9% for R&D Ultrafine Nano Powders About 1 Micro Meter 50/100Gram Wholesale. Buy Directly From Merchant MAGNETSTEK Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.