... with USP/EP grade. 2.PVP is white to creamy white powder. We are one of the biggest PVP manufactures in China.We ... .9003-39-8Molecular and Structural Formula (C6H9NO)nCharacteristics--A white to creamy white powder;--Readily soluble in water and a variety of ... (K.Fischer), %≤6.04Sulphated ash, %≤0.45Free-N-vinylpyrrolidone-2-one, ppm≤106Free-N,N'-Divinyl-Imidazolidone, ppm≤27Lead, ppm≤58Arsenic ...