Zinc Oxide (Indirect Method) Index Item | Index | Type I | Type II | Super Grade | Grade1 | Qualified Grade | Super Grade | Grade1 | Qualified Grade | Zinc oxide %≥ | 99.70 | 99.50 | 99.40 | 99.70 | 99.50 | 99.40 | Metallic metals (as Zn) %≤ | None | None | 0.008 | None | None | 0.008 | Lead oxide (as pb) %≤ | 0.037 | 0.05 | 0.14 | - | - | - | Manganic oxide (as Mn) %≤ | 0.0001 | 0.0001 | 0.0003 | - | - | - | Copper oxide (as Cu) %≤ | 0.0002 | 0.0004 | 0.0007 | - | - | - | Insolubles in HCL solution%≤ | 0.006 | 0.008 | 0.05 | - | - | - | Losses on ignition %≤ | 0.2 | 0.2 | 0.2 | - | - | - | Screening residues (through 45µm mesh) %≤ | 0.10 | 0.15 | 0.20 | 0.10 | 0.15 | 0.20 | Soluble matters in Water %≤ | 0.10 | 0.10 | 0.15 | 0.10 | 0.10 | 0.15 | Volatile matters at 105°C %≤ | 0.3 | 0.4 | 0.5 | 0.3 | 0.4 | 0.5 | Oilabsorption g/100g ≤ | - | - | - | 14 | 14 | 14 | Colour (compared with standard specimen) | - | - | - | Similar | Few | Little | Colour killing ( Compared with standard specimen) %≥ | - | - | - | 100 | 95 | 90 |
Uses:For paint,printing ink,rubber,cable, medicines,electronics ,papermaking ,enamel,match,cosmetic and other chemical industry application. Packing: 25kg, 50kg, big sack bag or as required by the customer. |