CHEMICAL PROPERTIES
ELEMENTS |
TYPICAL (%) |
GUARANTEED (%) |
ZnO |
99,9 |
99,9 min |
Total impurities |
0,09 |
0,1 max |
Pb (including PbO) |
0,0006 – 0,0016 |
0,0020 max |
Cu |
< 0,0001 – 0,0001 |
0,0002 max |
Cd |
0,0002 – 0,0006 |
0,0010 max |
Fe |
0,0001 – 0,0002 |
0,0005 max |
Cl |
0,0003 – 0,0004 |
0,0005 max |
S |
0,0001 – 0,0002 |
0,0020 max |
Mn |
< 0,0001 |
0,0001 max |
As |
< 0,0001 |
0,0001 max |
Ni |
< 0,0001 |
0,0001 max |
PHYSICAL PROPERTIES
DESCRIPTION |
TYPICAL |
GUARANTEED |
pH |
7,4 |
7,3 – 7,5 |
Volatile materials % |
0,10 – 0,16 |
0,30 max |
Ignition loss % |
0,02 – 0,21 |
0,25 max |
Water soluble elements % |
0,05 – 0,09 |
0,10 max |
Solubility in HCl % |
99,9 |
99,9 min |
Specific weight g/cm3 |
5,6 |
5,6 |
Moisture % |
0,07 – 0,14 |
0,30 max |
Surface area BET method m2/g |
3,7 – 6,0 |
3,5 – 6,7 |
Mesh 325 % through |
99,98 |
99,9 min |
This product complies with United States and European Pharmacopeia (USP and EP)
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