... crystalloid 4. Low hygroscopicity 5. High stability Chemical Name ErythritolSynonym Name 1,2,3,4-Butanetetrol,meso-1,2,3,4-TetrahydroxybutaneCAS No ... .01 max Heavy metals(Pb), ug/g 0.5 max Fe, ug/g 0.1 max As, ug/g 0.2 max ... , (us/cm) 5.0 max PH(10% water solution) 6.0-7.0 Ribitol, %0.1 max Glycerol, % 0.1 max Count of ...