Properties：
Molecular formula： ZnO
Molecular weight: 81.39
white /slight yellow fine powder , specific gravity 5.5－6.5 , granularity 0.15－0.7um ）, refractive index is 1.95－2.05 , specific heat in 20 ℃ 0.0915 ka. /g. ℃, melting point 1973 ℃, Zinc oxide evaporates in 1000 ℃ .
Molecular weight: 81.39
white /slight yellow fine powder , specific gravity 5.5－6.5 , granularity 0.15－0.7um ）, refractive index is 1.95－2.05 , specific heat in 20 ℃ 0.0915 ka. /g. ℃, melting point 1973 ℃, Zinc oxide evaporates in 1000 ℃ .
Standard： Company standard:HHXPQB—YHX（SLTJJ）—2005
Technical index:
|
Item |
1# |
2# |
|
Zinc oxide ( dry ), % ≥ |
99-99.9 |
95-98 |
|
Zinc (Zn), % ≥ |
79.5-80.3 |
76.3-78.7 |
|
lead oxide ( Pb), % ≤ |
0.001-0.003 |
0.003-0.005 |
|
cadmium oxide ( Cd),% ≤ |
0.001 |
0.001 |
|
Arsenic ,% ≤ |
0.001 |
0.001 |
|
Fineness (pass 100um screen ) , % ≤ |
0.1-0.15 |
0.15-0.2 |
|
High specific gravity , g/cm3 ≤ |
0.3-0.35 |
0.4-0.6 |
|
Moisture, % ≤ |
0.1-0.2 |
0.1-0.2 |
|
SO42- , % ≤ |
0.04 |
0.08 |
Uses：
feedstuff additive Zinc oxide feedstuff additive .
Packing, transportation and storage:
feedstuff additive Zinc oxide
plastic bag or waterproof bag lined plastic woven bag , Net Wt. 50kg. size is:580×1250mm.
It should ve protected by covers when transportation , avoid rain, moisture, or mixed with acidic matter .
packed in dry and airiness place, no contact with acid and alkali , In good condition, its valid period is an half year (the packing should be sealed), if expired, qualified product is still available .
It should ve protected by covers when transportation , avoid rain, moisture, or mixed with acidic matter .
packed in dry and airiness place, no contact with acid and alkali , In good condition, its valid period is an half year (the packing should be sealed), if expired, qualified product is still available .