Polyvinylpyrrolidone, Grade : Pharma Grade, cosmetic, Purity : 99%

pvp/povidone k15 k17 k25 k30 k90

k value 13-17 15-19 22-28 27-33 81-98
grade tech usp/ep cosmetic
moisture % ≤5.0 ≤5.0 ≤5.0
ph(5% in water) 3-7 3-7 3-7
vinylpyrrolidone % ≤ 0.2 ≤ 0.1 ≤ 0.1
sulfate ash% ≤ 0.1 ≤ 0.1 ≤ 0.02
nitrogen % -- 11.5-12.8 --
heavy metals(as pb) ppm -- < 10 < 10
acetaldehyde ppm -- ≤ 500 --
hydrazine ppm -- ≤ 1.0 --
peroxide(ash2o2)ppm -- ≤400 --