Description

The purity is high, can play pharmacology function well.
      2、Small granule, it is advantageous for the use and mixing with other materials. 
      3、The compositions disadvantageous to human body are few, heavy metal especially such as 
         lead cadmium mercury and   arsenic content accord with Chinese pharmacopoeia(CP),British
         pharmacopoeia(BP), standard requirement of the American pharmacopoeia(USP).

 

ITEM	INDEX
Charactristics	Hyy**1	Hyy**2	Hyy**3
Zinc oxide(counted by dried subtances )% ≥	*9.9	*9.8	*9.7
Metal ( zn ) %≤	no	no	no
Lead oxide( Pb ) %≤	0.**1	0.**3	0.**8
Cd %≤	0.***5	0.***5	0.***8
Arsenic %≤	0.***5	0.***5	0.***5
Hydrochloric indissoluble substance %≤	0.**2	0.**4	0.**8
**5℃ volatile substances %≤	0.*3	0.2	0.3