PVP K90 categories: Industrial, Cosmetic and Pharmaceutical  Chemical name: polyvinylpyrrolidoneCAS accession number: 9003-39-8Product specifications: Appearance：white powder  Chemical formula：(C6H9NO)n  Molecular weight： 111.143  Density  g/cm3 ：1.69  Melting point   ℃ ：130  Boiling point   ℃ ：90-93  K value ：92.5  Moisture  % ： 2.8  PH value(5% in water) ：5.8  Residue on ignition   % ： 0.02  Nitrogen content   %  ：12.2  Aldehydes (as acetaldehyde)    %   ：  0.00023  Heavy metals (as Pb)  ppm ：<10  Hydrazine ppm ：<1.0  Peroxides(as H2O2)    ppm ：75  2-pyrrolidone  % ： 0.08  Formic acid  %： 0.4  ◆Nature:is hygroscopic, soluble in water, ethanol, ether and other organic solvents, and has strong complex adsorption capacity for various substances. ◆Application:PVP K series early cosmetics industry direction can be used as film-forming agent, thickener, lubricant and binder, used for hair spray, mousse, hair setting gel, hair setting liquid; are used as auxiliary agents in skin care products, hair dye, modifier, shampoo, lipstick, deodorant, sunscreen, toothpaste, etc; PVP K90 (pharmaceutical grade) is one of the new…