xanthan gum pharmaceutical & fine chemical grade 1.function: pharmaceutical & fine chemical grade xanthan gum can be used as thickner and stabilizer in toothpastes,cosmetics,oral care products,liquid pharmaceutical products,barium sulfate solutions as radiopaque media,antidiarrheal suspensions for veterinary application. little consumption(0.1-0.2%)of xanthan gum can bring magic effectiveness,such as improving ointment-delamination,convenient for feeling & extrusion,helping products dispersion & absorbability,increasing the wet-keeping & film-forming ability,let cosmetics become more comfortable for users. a)the stabilization and binding b)keep the individual ingredients from separating c)improving ointment-delamination d)convenient for feeling and extrusion e)helping dispersion and absorbability f)increasing the wet-keeping and film-forming 2.specification: item:xg-x pharmaceutical grade xanthan gum appearance:light-yellow free flowing powder viscosity (1% solution in 1% kcl):1200 -1600cps particle size:120 mesh 200mesh ph value(1% solution):6.0-8.0 loss on drying:max 13% ash:max 13% total nitrogen:max 1.5% shearing ratio:min 6.0 pyruvic acid:min 1.5% heavy metal:max 10ppm v1/v2:1.02-1.45 lead:max 5ppm arsenic:max 3ppm total plate count:max2000 e.coli:negative salmonella:negative 3.executing standard: conform with fcciv,fao 4.package,storage & caution: 25kg in cardboard drum or multiply paper bags. stored in the original drums or bags under the condition of dry and below 25℃,a shelf life of at least 12 months will be achieved.keeping closed and avoiding long time connection with air after use.better to be used out within one week if the package is opened. in view of the strong hydrophilic property,an advising operation mehtod should be followed-pouring xanthan gum into water as slowly as possible and making sure it dissolves completely,or fully-mixing xanthan gum with other material at a ratio of 1:10 in preparation for using. 5.cas-number: 11138-66-2 molecular formula: (c35h49o29)n