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:HHXPQB-YHX （ GJTC ）-2005
Technical index :
|
Item |
top-grade ceramic |
glass ceramic | ||||
|
1 # |
2 # |
3 # |
1# |
2# |
3# | |
|
Zinc oxide （ Zn ）,% ≥ |
99-99.5 |
98-99 |
95-97 |
98-99 |
95-97 |
90-93 |
|
Metallic matter ( Zn ),% |
NA |
NA |
NA |
－ |
－ |
－ |
|
lead oxide ( Pb ),% ≤ |
0.10-0.20 |
0.20-0.40 |
0.40-1.00 |
0.5 |
2.0 |
4.0 |
|
Oxide of manganese ( Mn ),% ≤ |
0.02-0.05 |
0.05-1.00 |
1.00-2.00 |
－ |
－ |
－ |
|
ferric oxide( Fe ) , % ≤ |
0.01-0.03 |
0.03-0.05 |
0.05-0.10 |
0.10 |
0.2 |
0.5 |
|
Insoluble matter in HCl,% ≤ |
0.03-0.05 |
0.05-0.10 |
0.10-0.50 |
1.0 |
2.0 |
3.0 |
|
Loss on ignition,% ≤ |
0.4-0.6 |
0.6-1.0 |
1.0-2.0 |
0.2 |
0.5 |
1.0 |
|
Residue on screen（ wet 100 mesh ） , % ≤ |
0.1-0.2 |
0.5-1.0 |
1.0-2.0 |
0.5 |
2.0 |
5.0 |
|
Water soluble salt,% ≤ |
0.2-0.4 |
0.5-0.8 |
1.0-1.2 |
1.4-1.6 |
1.8-2.0 |
2.0-2.5 |
|
Total sulfur（SO42- ）, % ≤ |
0.02-0.05 |
0.05-0.08 |
0.08-0.10 |
0.1 |
0.2 |
0.4 |
Uses :
top-grade ceramic Zinc oxide is the solvent material of ceramic , used in glaze of ceramic floor tile and low temp. frit, , or art enamel and material of ceramic
Packing, transportation and storage :
top-grade ceramic 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 .