... : Colorless or White crystalline powderQuality: BP2009, USP32, FCC7, E330, JSFA8.0, GB2007 Shelf Life: 2 yearsStorage: Stored in Shielded from light ... size: 10-30mesh, 30-100mesh ITEM SpecificationClarity (405nm light transmission)98.0%Min.Sulphated Ash0.03% Max.Sulphate20 ppm Max.Oxalates20 ppm Max ...