Viscosity (1% Aqueous sol)      400-500cps                             470cps

(RVDV-Ⅱ+,20 rpm,2#, 20℃)

Purity                                 99%Min.                              99.5%

Particle Size                    95% Min.                      98.6% passed 80 mesh

Loss on drying                  15% w/w max.                              12.9

(105℃,4h)

PH                                         6.0-8.0                                  6.98

Water insoluble material      0.6% w/w max.                              0.24

Ashes                      18-27% w/w                               23.20

Appearance               Milk-White Powder                    Milk-White Powder

Heavy Metals  as Pb      20ppm as Pb max.                            20

Lead                         5ppm max.                                   4      

Arsenic                       3ppm max.                                  2  

Total Plate Count           5000cfu/g max.                            ＜ 5000